Menu Icon
fall hauling headquarters

Price: $172.80

In Stock

ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit

Item # 119250KIT

lowest price pledge

Retail:$224.43

Our Price: $172.80

Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

This item qualifies for Free Shipping

Shipping Weight: 2 lbs

Estimated Delivery: Friday, October 26

Enter a zip code for a more accurate estimate.

Quantity: 

In Stock
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Universal Fit 119250KIT
zoom in icon
zoom out icon
pop out icon replay 360 icon
horizontal rotate icon

Product Images

spin image icon
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Universal Fit 119250KIT
119250KIT - Powered Converter Tekonsha Custom Fit Vehicle Wiring
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Universal Fit 119250KIT
Tekonsha Custom Fit Vehicle Wiring - 119250KIT
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit 4 Flat 119250KIT
Custom Fit Vehicle Wiring 119250KIT - Powered Converter - Tekonsha
Tekonsha Custom Fit Vehicle Wiring - 119250KIT
119250KIT - Powered Converter Tekonsha Trailer Hitch Wiring
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Universal Fit 119250KIT
Tekonsha Custom Fit Vehicle Wiring - 119250KIT
119250KIT - 4 Flat Tekonsha Trailer Hitch Wiring
119250KIT - Universal Fit Tekonsha Custom Fit Vehicle Wiring
Tekonsha Trailer Hitch Wiring - 119250KIT
Tekonsha Universal Fit Custom Fit Vehicle Wiring - 119250KIT
Tekonsha Trailer Hitch Wiring - 119250KIT
119250KIT - 4 Flat Tekonsha Custom Fit Vehicle Wiring
119250KIT - Powered Converter Tekonsha Trailer Hitch Wiring
Tekonsha Universal Fit Custom Fit Vehicle Wiring - 119250KIT
Tekonsha Trailer Hitch Wiring - 119250KIT
119250KIT - Universal Fit Tekonsha Custom Fit Vehicle Wiring
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Powered Converter 119250KIT
Tekonsha Trailer Hitch Wiring - 119250KIT

In Use/Installed

Tekonsha Custom Fit Vehicle Wiring - 119250KIT
119250KIT - Powered Converter Tekonsha Custom Fit Vehicle Wiring
Tekonsha 4 Flat Custom Fit Vehicle Wiring - 119250KIT
119250KIT - Universal Fit Tekonsha Trailer Hitch Wiring
Custom Fit Vehicle Wiring 119250KIT - 4 Flat - Tekonsha
Custom Fit Vehicle Wiring 119250KIT - Universal Fit - Tekonsha
Tekonsha Custom Fit Vehicle Wiring - 119250KIT
119250KIT - 4 Flat Tekonsha Trailer Hitch Wiring
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Universal Fit 119250KIT
Tekonsha Trailer Hitch Wiring - 119250KIT
119250KIT - Powered Converter Tekonsha Trailer Hitch Wiring
Tekonsha Custom Fit Vehicle Wiring - 119250KIT
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Universal Fit 119250KIT
Tekonsha Custom Fit Vehicle Wiring - 119250KIT on 2013 BMW X5
Tekonsha Universal Fit Custom Fit Vehicle Wiring - 119250KIT on 2013 BMW X5
Tekonsha Custom Fit Vehicle Wiring - 119250KIT on 2013 BMW X5
Tekonsha Custom Fit Vehicle Wiring - 119250KIT on 2013 BMW X5
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit Universal Fit 119250KIT on 2013 BMW X5
Tekonsha Trailer Hitch Wiring - 119250KIT on 2013 BMW X5

Customer Photos


  • Universal Fit
  • Trailer Hitch Wiring
  • Tekonsha
  • 4 Flat
  • Powered Converter
Install a 4-way trailer connector on your vehicle without cutting or splicing into your wiring. Zero-contact interface sensors identify the current flowing through each wire by simply clamping onto it. Circuit-protected module is made using SMT. Call 800-298-8924 to order Tekonsha custom fit vehicle wiring part number 119250KIT or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit. Custom Fit Vehicle Wiring reviews from real customers.


  • All Info
  • Reviews (118)
  • Q & A (458)
  • Videos (9)
  • Photos
  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 119250KIT

Install a 4-way trailer connector on your vehicle without cutting or splicing into your wiring. Zero-contact interface sensors identify the current flowing through each wire by simply clamping onto it. Circuit-protected module is made using SMT.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately)
  • Bypasses factory wiring and involves no cutting, splicing, or plugging into vehicle's wiring
    • Sensors clamp onto the wires of your factory tail light wiring harness to detect current
    • No feedback, no interference with, and no power draw from your vehicle's wiring system
    • Easily removable and transferrable between different vehicles
    • Circuit tester included to ensure proper setup
  • Includes circuit-protected module that connects directly to car battery for power
    • Power wire, fuse holder, and 15-amp fuse included for installation
  • Works with 2-wire, 3-wire, PWM, and multiplex wiring systems
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Application: vehicles with 12V electrical systems
  • Maximum amperage:
    • Stop/turn lights: 4.2 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


This revolutionary wiring method makes it fast, easy, and safe to add a 4-way connector to your vehicle so you can power your trailer's lights. Unlike traditional tail light wiring harnesses, which either splice into your vehicle's wiring or plug into designated ports in your factory harness, this system bypasses your vehicle's wiring entirely. Just clamp the intuitive sensors onto the individual wires of your OEM tail light harness and let the ZCI system do the rest.


Zero-Contact Interface Sensors

Sensor

Each zero-contact interface (ZCI) sensor included with this harness is able to read the current that travels through the wire it is clamped onto. Upon sensing the specific modulation of that wire, a signal can be sent along the wire that connects the sensor to the included 4-way flat trailer connector. That signal is then transmitted through the connector to activate the appropriate function on your trailer lights.


Universal, Worry-Free Design

No Splicing, Cutting, or Connecting to Factory Wiring

Because the ZCI sensors can read the signals sent through your vehicle's wires just by clamping onto them, no cutting or splicing is necessary. The system completely bypasses all of your vehicle's wiring. As a result, your trailer's lights will be powered without overloading your vehicle's electrical system. And there is no chance of damaging feedback either.


When using this ZCI harness, you don't have to worry about voiding your warranty, nor do you need to be concerned about any potentially damaging errors on your part if you're not an experienced do-it-yourselfer. And if you have a vehicle that doesn't allow certain modifications - like a leased car or truck - you can install this harness and remove it later with no obvious alteration to the vehicle.


Maximum Compatibility

This wiring harness is universal. You can use it on any vehicle that operates on a 12V, negative ground system. Because installation is so simple, you can easily remove the unit and transfer it to another car or truck at any time.


In addition, the ZCI sensors are able to read the signals sent by multiplex wiring systems and systems with pulse width modulation (PWM) and low-side-switched wiring, making the harness compatible with nearly all automotive wiring systems. This unit also works with both standard incandescent tail light bulbs and LED bulbs.


Built-In Tail Light Converter

Most trailers run on a 2-wire system - wherein the brake and turn signals are carried on a single wire. Many vehicles, however, are built with separate brake and turn signals. This type of system is referred to as a 3-wire system. If your vehicle operates on a 3-wire system, it will need to be converted so that it will be compatible with the wiring system of your trailer. This is done by adding a tail light converter to your wiring setup to combine the brake and turn signal functions of your automobile so that they run on a single wire to properly activate your trailer's tail lights.


This ZCI unit has a tail light converter built in to ensure proper functioning with any vehicle that operates on a 3-wire system. If your car has a 2-wire system and therefore does not need a converter, don't worry. The method of installing the sensors will take into account the wiring configuration of your vehicle so that only the necessary sensors are used, making sure the appropriate signals are sent back to the 4-way.


Installation

This universal harness connects to your vehicle's tail light wiring harness. To connect, just follow the included instructions. There are 4 ZCI sensors included. Each sensor has a colored label on it. Depending on your application, you will need to connect all or some of these sensors to the factory wires indicated in the instructions.


To get the power necessary to operate, the harness must be connected to a 12V power source. The included installation kit provides the hot lead required to connect this module to your car battery. When all connections have been made, connect the hot lead to the black wire on the ZCI power module and run the other end of the lead up to your car battery. Connect the hot lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery. Then insert the included 15-amp fuse into the fuse holder.


Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location either within your cargo area or beneath your vehicle, near the trailer hitch. If you choose to mount the connector near your hitch, a mounting bracket (sold separately) is recommended to keep the connector secure.


It is also recommended that you use a small amount of grease on all electrical connections on the 4-pole connector to help prevent corrosion.


Surface Mount Technology

Each ZCI wiring harness is built using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability, and durability.


Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? SMT components also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.



119251 Tekonsha ZCI Zero Contact Interface Universal ModuLite and Installation Wiring Kit

48705 LED Circuit Tester - 12 Volts



119250KIT Installation InstructionsInstallation Details 119250KIT Installation instructions

This Product Fits The Following Vehicles

2008 - 2013 BMW 1 Series

2015 - 2015 Mazda 2

2014 - 2017 BMW 2 Series

2002 - 2016 BMW 3 Series

2014 - 2018 BMW 4 Series

2011 - 2018 BMW 5 Series

2006 - 2008 BMW 7 Series

2006 - 2017 Audi A3

2014 - 2018 Audi A4

2017 - 2018 Audi A4 Allroad

2008 - 2019 Audi A5

2012 - 2015 Audi A6

2012 - 2017 Audi A6

2012 - 2016 Audi A7

2002 - 2009 Audi A8

2013 - 2016 Audi Allroad

2017 - 2018 Chevrolet Bolt EV

2001 - 2018 Mercedes-Benz C-Class

2013 - 2017 Ford C-Max

2015 - 2018 Porsche Cayenne

2009 - 2012 Volkswagen CC

2014 - 2018 Mercedes-Benz CLA-Class

2006 - 2009 Mercedes-Benz CLK-Class

2008 - 2018 Mini Clubman

2002 - 2004 Mini Cooper

2013 - 2017 Chevrolet Corvette

2011 - 2018 Mini Countryman

2012 - 2013 Dodge CV

2012 - 2013 Ram CV

2004 - 2016 Mercedes-Benz E-Class

See All Vehicle Fits

Video of ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Tekonsha Custom Fit Vehicle Wiring 119250KIT Review

Today, we're going to be taking a look at the ZCI Circuit Protected Vehicle Wiring Harness with a 4-Pole Flat Trailer Connector. It's also going to come with the installation kit. This product is from Tekonsha. This unit's going to allow you to install a 4-way flat trailer connector on your vehicle without cutting or splicing into the vehicle wiring system. It's going to feature Zero Contact Interface sensors. That's going to be these components right connected to the end of the wires. These identify the current flowing through each wire simply by clamping onto the wire.

Again, no cutting or splicing in the wiring system is needed. The unit's going to provide your 4-way flat trailer connector at the back of your vehicle to power your trailer signal lights. This is compatible with 5-pull, 6-pull, and 7-pull adapters. Adapters are sold separately. It's going to come with a dust cap for the 4-way flat connector. That way, you can cover up the connection points when the plug's not being used.

You'll see here that we have plenty of wiring for the 4-way flat connector. I just have it all bundled up to keep it nice and tight for our video. Now, another main feature of this system is that it's designed to bypass the factory wiring. Again, no cutting, no splicing, and no plugging into the vehicle's wiring is needed. It's going to have these really unique sensors. These are going to clamp onto the wires of your factory tail light wiring harness, and that's going to be what detects the current.

The sensors are epoxy-filled to protect the sensors from the elements. No feedback, no interference with, and no power draw from your vehicle's wiring system. The unit's also going to include a circuit tester to insure proper set up. Again, once you have the wires ran through there . They got the little groove so they can sit in there nicely .. all you got to do is clamp that down until it snaps into place.

Then, it's going come with these foam pieces of tape. You wrap those around the center and that's going insure that they won't move around during operation. Simply wrap the foam tape around the sensor after the connections have been made. Now, this unit's also designed to automatically shut off if it detects a short or overload so it's completely designed for safety and to protect your system. Another neat feature about the unit is that it's easily removable and transferable between different vehicles. It's going the circuit protected module. That's going to connect directly to the vehicle battery for power. Comes with everything necessary to make that connection. This unit is designed to work with 2-wire, 3-wire pulse width modulation or PWM and multiplex wiring systems. It's going to work with standard incandescent tail light bulbs and LEDs. It's going to be constructed using surface mount technology for consistent reliable performance. What that does is it maximizes the trailer light yield and intensity while producing minimal heat and it insures superior operation even in rougher conditions. Now, this does feature a universal design and the system is designed to work on almost any vehicle. Just make sure that the vehicle operates on a 12 volt negative ground system, and you should be set to go. When it comes to the maximum amperage for the stop and turn light, it's capable up to 4.2 amps per circuit. For the tail lights, it's capable of up to 7.5 amps per circuit. When it comes to the installation, it's pretty simple. It's going to come with detailed installation instructions to walk you through that process step by step. Basically, what you need to do is you would need to connect these sensors onto the correct wires of your vehicle's wiring system. Each sensor's going to be labelled. This one says, "Left turn". This one says, "Right turn." They're color coded. This one says, "Stop," and this one says, "Tail." That shows you the functions of those sensors. You got plenty of wiring to work with. Again, I just have it all bundled up for video purposes, but you should not have any issue reaching the connection areas. Plenty of wiring is available with this system. Connect the sensors and again, they include the circuit tester right here so you can detect the correct wires that you're making the connections to. Once you get all those connected, you'll need to mount the box. You can do that using some double sided foam tape. You can do it using zip ties. It's also got a mount hole right here that you can use a screw to get it installed, but you want to get that mounted to a nice, clean, out-of-the location. Then, you'll also need to make a ground connection. That's going to be your white wire. Has a ring terminal already attached to it. The unit's going to come with a grounding screw so you can easily get that connected. Then, you'll need to run a hot lead to the vehicle battery. That's going to be the black wire coming out of the box. You would connect this to the bundle of black wire with one included butt connectors. The other end of the black wire gets connected to one half of the fuse holder with another butt connector. The other end of the fuse holder gets a ring terminal attached to it and gets connected to the positive post to the vehicle battery. It's got the fuse cap here. The 15 amp fuse goes directly in there. Close the cap. It's going to keep it safe and protected. Then, you would need to secure the excess or slack in the wiring with the included zip ties. It's going to come with a whole bunch of those to get your wires safely secure and up and out of the way. Once your installation is complete, the 4-way connector's going to be stowed in an out-of-the-way location, either within your cargo area or beneath the vehicle in the other trailer hitch. If you choose to mount the connector in the other hitch, we do recommend using a mounting bracket. Those are available here at etrailer.com with variety to choose from, and they are sold separately. It's also recommended that you use a small amount of dielectric grease in all your electrical connections like the 4-pull connector. That's really going to help prevent corrosion to those connection points. That's sold separately as well, and you can find it right here in etrailer.com. That's going to do for today's look at the ZCI Circuit Protected Vehicle Wiring Harness with a 4-Pole Flat Trailer Connector and installation kit.


Customer Reviews

ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit - 119250KIT

Average Customer Rating:  4.6 out of 5 stars   (118 Customer Reviews)

Install a 4-way trailer connector on your vehicle without cutting or splicing into your wiring. Zero-contact interface sensors identify the current flowing through each wire by simply clamping onto it. Circuit-protected module is made using SMT.

- 119250KIT

by:

2016 Lexus RX 350


I purchased and installed the 119250KIT in my 2016 Lexus RX 350- WITHOUT the factory trailer package. Although Lexus will always tell the consumer it Must have the factory wiring harness, it does not. I did not take pics but this is not a difficult task to accomplish. Be patient and follow these steps, it is about an hour long task. To install the wiring harness, first remove the plastic trim at the bottom of the lift gate, it is held down with plastic fasteners and simply pops off. I strongly suggest going to Harbor Freight and buy their $4 kit of plastic pry bars, rather than risk scratching up the paint on your vehicle. Next remove the deck storage buckets and carpeted pieces to left/right of the spare tire, this will allow you open access to the wiring. I installed the Tekonsha module on the driver's side in very back to left of the spare and on the back of the wheel well. Don't put on the double sided tape yet, this will be done in a later step. Next step is to remove the small plastic (3" x 2") vent on the rear left vertical carpeted wall, it just pops out from the bottom (first), then slide down, and off. Now, carefully remove the left tail light by using a plastic pry (from Harbor Freight) the whole assembly will slide out of the plastic snaps from front to rear. Use a towel when you let it 'hang' against your paint. There is a thin plastic cover piece which is in the lift gate track and covers 2 tail light bolts- which pops out easily. Once the assembly is removed, you will see the turn signals bulb insert has a colored (power) wire and a ground wire (twist this to unlock and allow you to test which wire is hot). The other wires on the assembly go to the running and brake lights- test them in a similar manner to determine which color is running lights and which is brake light. Look through the opening where you removed the 'vent' to see the tail light wires and pull/trace them by color into the back of the vehicle. You will have to slide the tail light wires (carefully 1 at a time) through the black water tight rubber plug to give you some length to clip on the Tekonsha connectors. I connected the Left, Running, and brake light -Teconsha clips all on the left side of the vehicle. Don't wrap the foam around them until they first test ok. All of the arrows on each Tekonsha clip should point toward the (rear) tail lights. A CRITICAL task is to locate a GOOD ground from the Tekonsha module (white wire) in the back of the vehicle. In my Lexus, under the Lift Gate area, I located a steel screw which already had 2 white wires with black stripes and extended the (short) Tekonsha to allow me to use this. Without a GOOD ground, you WILL have problems, waste a lot of time (1 hour plus), and aggravation to troubleshoot problems later. Trust me, I know!! Now that you have completed the wiring on the driver's side, do the same with the passenger side. Here you only need to run the single clip for the turn signal (1 wire). The Tekonsha clip is long enough to run across the lift gate area next to the factory harness. Locate the appropriate right turn signal wire by sliding off the right tail light similar process to the left light you just did. Clip on the Tekonsha clip. Next I tested all of the lights with my trailer. Once all were working, I put the foam wraps on each clip, secured the Tekonsha module using the double sided tape (on rear of wheel well), secured loose wires with zip ties, bundled together- all excess wiring, and secured in the side well. The last task is to run the black power wire from the Tekonsha module up to your battery in the engine compartment. If you are not too large, you can fit under the vehicle- otherwise raise it off the ground (safely) so you can get under the left side to route the wire. First, disconnect the negative battery cable from the battery post! Next, I loosened the 6 bolts which held the black plastic covers (under carriage of RX 350) and ran the wiring from just in front of the LR wheel all the way forward to my battery. Zip tie along the way as necessary, as not to interfere with moving parts. Then from under the vehicle, I ran the remaining wire around the LR wheel and zip tied again as not to allow any pinch points or abrasion (from suspension) of the wire. In the LR quarter panel of inside of vehicle you will see a rectangular brown plastic which will pop out and allow you access to pass wires from the undercarriage to the inside. This is where I ran the power (to battery) and trailer light 4 wire pigtail (to hitch area). Since it is plastic, I cut out a little square in the bottom of it and reinserted this in original place. Next, go to the front of the vehicle and install the fuse holder to the positive side of battery. Reconnect the battery ground and insert the 15 amp fuse provided. Give your system another check and verify the fuse did not blow. Put back the removed panels and pieces- you are all set to tow!! 278814



- 119250KIT

by:


2012 VW GTI (autobahn edition) Installation (DSG) I had some small issues and hiccups along the way, so in order help out since I couldn't seem to find vehicle specific help, here is what I did. I did buy the CURT 4-way flat connector tester (Item #126) first to make my life easier when testing. It helps. Buy it. First - start by removing the cargo floor carpet and pulling down the drivers side wall carpet. I did find it necessary to take the moulding trim off the top portion of where the hatch cover locks in, along with the rear seat belt guide trim so I could run the wires to the battery cleanly. There is a few star bolts holding the trim alongside the rear seats when folded down, so just do a search if can’t find it (one cover has to be popped off) Second - Wiring. This was a little bit of a guess, as I have 3 wires, and my meter didn’t seem to be helpful since they were so small and close together. Here’s what works (drivers side): - “Stop” module clips over the black/red wire - Middle brown wire isn’t used - “Left” turn signal module clips over the green/black wire - Passenger side right turn signal clips over the green/black wire - I screwed the ground right into a side structure panel Running the battery cable was the bigger time suck. - Stated above I had the drivers side rear panel trim and carpet removed, and I continued removing the front/rear drivers floor sill trim. I ran the black wire along the current loom and tucked it under the floor carpet. - I then ran it behind the hood latch and towards the top of the metal foot rest, keeping it behind the carpet - This is where you get to the firewall. There is a piece of foam. Remove it. Now you’ll see a rubber grommet where the clutch pedal would go through if you have a standard. I took that out, drilled a small hole to run the wire through that I attached the wire to a metal hanger to fish up and to the right of the battery box. Fish it up, grab it, and pull it through. - Slide the grommet back into place (your wire would have been already through it) and snap it on. - Make your connection to the battery and follow initiation instructions. 399189



- 119250KIT

by:

2015 Volkswagen Golf SportWagen


When trying to get a trailer hitch and electrical wiring for my 2015 Golf Sportwagen, I was a bit frustrated by the response from VW -- on the one hand they stated in the manual that the vehicle was not designed to tow, but on the other hand they gave specification for a trailer, but the dealer was no help installing either a hitch or harness. So, I got the hitch from Torklift EcoHitch (a GREAT product), and after much searching, the 119250KIT from etrailer for the electrical. I had a service shop install the electrical (VW dealer would not touch it!), and it seemed to work fine for a year. I was a bit troubled by the mounting of the connector outside the car, using the supplied little harness. But, proceeded anyway. We had a pretty rough winter up here in northern UT, and when I went to connect my trailer for spring gardening work, the electrical connector was badly damage, with both corrosion of the contacts and bent contacts I had to straighten to get the thing to work. Message #1: Do NOT mount the connector outside the vehicle! I had the repair shop replace the connector, and when they did, they could not get the lights to work properly. Most important issue: even with the car totally off, when the trailer was plugged in, the left trailer tail light was on, and it ran the battery down! We determined that the problem was likely a fault in the power module. Note that the text on the module clearly states 'Circuit protected'. I am not sure what we did, but it is pretty clear we blew the thing. And, I could not get a replacement without buying the whole kit again. There was no option, either from etrailer, or Tekonsha (manufacturer of the module) to just get a replacement module. I feel a bit stuck, but lessons learned: I am NOT mounting the connector outside again, where it is exposed to road salt in winter, and can corrode, and I will be careful not to cause a short when making the connection. I will reserve final judgement on the 119250KIT for a year or so, if it does not fail again, I will be happy! 390291



- 119250KIT

by:


I struggled a full day installing 119250KIT on a 2016 Lexus RX 350 with led lighting, NO factory towing package and no appropriate instructions. Once I figured out the wiring and how to expose enough it was a piece of cake. I will summarize - you can add details: Take out the spare tire. Remove the plastic trays by popping out the push plugs. Remove the vent in the left rear panel by carefully prying out the top and lifting out. Pull the exposed left tailight wiring out by pulling the entire bundle out through the plugged hole. Cut the shielding to expose the wires and attach the tail yellow wire, stop red and left turn green. Remove the right taillight assembly simple - see owners manual on replacing bulbs on regular unit. Remove shielding to expose wires and attach right turn sensor to the green wire. Cut the right turn sensor lead in half, pull plug and run wire through existing hole in body. Seal hole and re-solder sensor wires. Run wire to battery and check system. Remove the left tail light assembly as above and pull wire plug back into hole. Mount control unit in far left rear. Run trailer lead and battery wire through existing holes as desired. I cut and reattached trailer lead to use a small convenient hole. Zip tie/duct tape down wiring. Refit all. Works great - AFTER you figure it out. 344434



- 119250KIT

by:


This is one of the most easiest kit to install, The instruction diagram is very clear and print really well. I honestly did not follow the instruction diagram because it is very simple and straight forward. Work so great, no wire tapping, cutting, pinching, non none of that. 482391



- 119250KIT

by:


Great product! I was able to install on my BMW X5 in less than an hour, very easy installation. I placed the order with Etrailer and while I awaited its arrival I watch the video associated with the installation. When the item arrived I opened the box verified I had all the required parts and made the installation without reading the instructions. Watching the video is invaluable and well worth the time. Upon completion I hooked to my trailer and it worked flawlessly. If you follow the set up you will have no problems. I liked the fact I had to do know splicing and removal should be simple. I ran my wiring to the hitch so I didn't have it hanging out the back hatch. When I looked online it suggested the removal of the bumper cover. I was able to run mine down behind the bumper and to the hitch with out removing anything. I simple fed it behind the bumper with the tailgate down. It tucked neatly behind the bumper and I zip tied it in place. The unit seems to be well built but is a little pricey in comparison to other units. The benefit of having a universal harness that requires no splicing with easy installation was the difference maker for me. 414075



- 119250KIT

by:

2018 Audi Q5


This harness works great, although it took a lot of repeated tries "learn" the module to my 2018 Audi Q5. My local specialty repair shop was willing to give this ZCI solution a try so they could offer it to future customers. They had done a cut-and-splice harness for a previous customer on the same model but were turning down further requests because they found the re-programming and recalibration of the electronics to be prohibitively complicated and time-consuming; even the AUDI dealers I called were balky and a little vague about the time, effort, cost, and warranty implications. My local guys found the installation easy but could only get it partially working at first. After multiple views of the video and exhaustive attempts to isolate the issue, it finally worked, for no apparent reason, on the 5th or 6th repetition of the "learn" routine. Despite those issues, I recommend this as being worth trying as perhaps the only reasonably-priced path to trailer wiring for this model. 556229



- 119250KIT

by:

2016 BMW 3 Series


Installed in an afternoon, could have been under an hour with model specific instructions. The car ('16 BMW 328iX wagon) has a bulkhead connector through the passenger side rear quarter where all the tail light & other rear end wiring exits. That bundle of wires splits off a larger loom ~6" before the bulkhead, which looks to be the easiest spot to install the current sensors. It's tight access but also less than a foot away from the battery. It's all accessible by just pulling one interior panel, no need to touch the drivers side at all, installation at each taillight location doesn't make sense for this car. Oh yeah - both L & R turn signal wires are black/white, so you have to double check before buttoning things up. The product works perfectly as advertised. My only request would be for a little more streamlined shape to the sensors for tucking into a tight space like mine. 296467



- 119250KIT

by:


My mechanic and I have no concern that the product will perform well but there were some significant issues with installation that could be fixed with some careful attention. All wires on the unit are the same color and when the product arrived, all of the wire labels had fallen off. Determining each wires function was a painful and tedious process that took considerable time. That process is beyond the do-it-yourselfer. Also, the wire connection grommets seem to fall away from the wire when engaged. They had to be taped to the wire to prevent disengagement. We were able to work through these issues and the harness works perfectly. Either placing better wire labels or color coding the wires could prevent this problem in the future. As for the grommets, numerous potential fixes could be considered. 525133



- 119250KIT

by:


Very easy to install, but read the directions first. The "STOP" line is not used in some applications ("two-light" systems). I've had the module malfunction twice between couplings (does it "forget" its functions when no trailer is coupled for extended periods?). It's easily reset. For that reason, I recommend that the fuse be positioned someplace that's easy to access. The reset is not a terrible thing since I always test the light functions each time I connect a trailer. Just cycle through each function (tail, blinker, brake) and the module may relearn the functions without pulling the fuse. Worst case - Pull the fuse, count to 10, insert the fuse, then cycle though the functions. This module could theoretically transfer between cars since there's no splicing involved. I'd buy it again. 366623



- 119250KIT

by:

2010 BMW X5


Awesome kit! It is definitely more expensive than the generic stuff out there but this one has a lot more to it. The induction sensors are easy to install and don't mess up the factory wiring harness with a bunch of splices. It also provides a insolated connection to the trailer for even more protection. I installed the 119250KIT on a 2010 BMW X5 3.5d. It took a little over an hour and was pretty straight forward. This vehicle has the battery and fuse box in the back so it made things a little simpler to complete the job (you don't say that very often about a BMW). Overall this is a great product but I think it is a little too expensive to get 5 stars so I gave it 4. That said, I would buy it again for newer cars with sophisticated electrical systems. 267519



- 119250KIT

by:

2015 BMW X5


Second hitch from etrailer, now for my new X5 F15. It’s perfectly fit this car, I like Curt brand better, no bumper trimming was needed for 2015 model. With great video of how to install it it takes just about 2 hours to do it properly. Thank you for having also 4 pin wiring for this car, as other option would only be buying from the dealer at a huge price. 558053



- 119250KIT

by:

2016 Mercedes-Benz Metris


This product works but the installation into a Mercedes Metris 2016 Passenger van was very difficult. The magnetic pickups do not fit behind the tail light as there is insufficient room. In the end wires had to be cut leading to the tail light and spliced into longer wires so that the magnetic pickups would line up in a row rather then bunched together in a space that was otherwise very limited. This kit was purchased at a premium price to avoid cutting or splicing wires but this was not possible. Etrailer had indicated this would fit into a Metris but this is simply not possible unless wires are cut. In the end this took over 8 hours to install, was an exercise in frustration and the cost was excessive. 421836



- 119250KIT

by:


Product was simple and straight forward to install on my BMW X6, however, it does have some issues. The lights are inconsistent at best. The lights on my travel trailer sometimes work perfectly and some times not. The issues are that sometimes the lights just go out while traveling down the road and then come back on minutes later or not at all. When the lights won't come back on I have to pull over, turn the car off and then restart. This works to bring the lights back on. Other times the trailer lights just stay on. Turn the car off and the lights just want to stay on. Unplugging them turns them off. So.......they work......sort of. I hope this helps. 463447



- 119250KIT

by:

2006 Infiniti FX45


Easy to understand and put together. I chose to affix the module at the passenger side rear taillight, as opposed to the driver’s side that etrailer suggested, because I snaked the power cord through the interior, again as opposed to etrailer’s suggested zip tying it to the undercarriage. The battery is on passenger side of my 2006 FX45 and against the firewall. So I punctured a hole in a large rubber grommet right behind battery that gave easy pathway through the firewall to passenger compartment behind glovebox. Only issue and minor setback was 2 of the 4 labels the harness/module wires were lose and not taped to their respective harnesses. 574767



- 119250KIT

by:


The non-contact (ZCI) trailer light interface, though expensive at $180-plus, is exactly what my VW Golf Sportwagen needed. With its LED tail light system, the clamp-on sensors are the only thing that works. The only negative is that it took me a couple hours to carefully determine which contact pins are which signals. Then it took another couple hours to carefully route & dress the wiring. Contrary to instructions, I used the 12 v outlet in the rear and avoided fishing a power wire from the battery. It worked just fine! I ended up using the Left Turn Signal, Right Turn Signal, and the Tail Light Signal. The Stop sensor was unused. 567282



- 119250KIT

by:


The unit seems to be working, but it took about 8 hours to install, not the one hour the instructions say. The written instructions were, for the most part, useless. Thank goodness I was able to find a couple videos on YouTube that show how to install it. Only one of the wires were labeled as to which circuit they connect to (right blinker, brake, whatever), so I had to do trial and error. To top it off, the wires to the right blinker were about a foot too short, so I had to drive about 45 minutes to the nearest auto store, buy some wire, and then drive 45 minutes back! Two thumbs down on this product! 565366



- 119250KIT

by:

2008 BMW X5


I selected this kit to install in my 2008 BMW X5 because I didn't have to splice into my vehicle's wiring and risk damaging something and it was extremely easy to install. It turned out to be even easier than I originally anticipated. Total install time was about 45 minutes start to finish. And even better, if I ever need to remove the kit from the vehicle, there won't be any trace that anything was ever installed. Difficulty level to install on a scale of 1 to 10 with 10 the most difficult is about a 2. Works perfectly as described. Highly recommend over any other trailer wiring kit available. 541233



- 119250KIT

by:


This wiring kit works and is very easy to install. Just clip the sensors over the appropriate wires and make the battery connections. If for some reason you put the sensors over the wrong wires just unclip them and move the to the correct wires. It makes it almost idiot proof. For a 2017 BMW X3 the wire colors are: Drivers side: yellow with black line = running lights yellow with blue line = brake lights blue with green line = left turn signal Passengers Side: blue with brown line = right turn signal (note that the instruction video calls this wire out as blue with an orange line) 281528



- 119250KIT

by:

2015 Mercedes-Benz GLK-Class


Unsure about this product. I am always leery of online orders for electronics and here’s why. The product arrived timely, however the box had clearly been opened and the product had been installed (or attempted to be installed previously). The wires were not neatly packed and there was black grease and evidence of the grounding screw having been installed. The harness was zip-tied back together in a rather messy fashion. I am hoping I don’t end up spending my weekend installing a product that is defective. A bit disappointing after all of the other positive reviews. Crossing my fingers 498419



- 119250KIT

by:


I've towed racing sailboats for many years, mostly with European automobiles. Needed the hitch later this month so I could pick up a "new" one I just bought . This install was the second easiest out of the 6th I've done myself. High quality kit fits great. Even though Curt says the C11701 doesn't work on my 2008 Mercedes E350 4Matic Sedan Sport, I had absolutely no problems. The Tekonsha light converter was a snap too. Certainly lots better than the old days when I had to jury-rig the trailer lighting to match the car. Finally, your service was super. Couldn't be happier. Thanks! 395365


Comments

Very easy installation and zero problems since. Tows the new racing sailboat great. Highly recommended.

George S - 06/12/2018

39645

- 119250KIT

by:


Well built wiring kit and good instructions. The Land Rover's wiring is tough to get at, but after taking the spare tire out and the fuse block door off I could get at them. One thing the instructions didn't indicate is that the rear lights appear that they have to be plugged before the module will learn them. Tried the first couple times with the connector removed from the light and the module would not work. Removed the fuse, but the tail lights back in and went through the learning process and it worked the first time. 430624


Comments

Working great and never had an issue with it.

Brian S - 09/10/2018

43416

- 119250KIT

by:

2013 BMW X5


Bought the hitch and wiring harness from etrailer.com last year, and following their excellent video installation instructions, was able to complete the installation in only a couple of hours. (Would take about half that time to do it again, always worried about breaking something!) Everything has worked flawlessly, and we have been completely satisfied with the purchase and support. Will definitely return the next time we're in the market for hitch related products. 515249



- 119250KIT

by:

2010 Mercedes-Benz M-Class


Super simple to install in my 2010 ML350. Power and ground available in the right tail light section, no running a long power cable. The video was very helpful, and finding the correct word with the tester made finding the corr t wire easy. I highly recommend this light kit. I would recommend getting an xtension cable for the trailer cable; over time the wires will break and replacing the extension much easier than repairing the attached cable. 293358



- 119250KIT

by:

2017 Audi Q7


I installed this on my 2013 Audi Q7. This wiring system does cost more, but I really like the fact that I did not have to tap into or cut any existing wires. This maintains the original integrity and make it very easy should I ever decide to remove the hitch from this vehicle. Very easy to install, the hardest part was running a wire for power from the battery area to the hitch - avoiding everything moving or hot. 445156



- 119250KIT

by:


Took a while to figure out the wiring and testing, but I'm happy now. If you have a 2014 SQ5 and use the ZCI wiring harness, you'll need to connect the following wires (and make sure to have the tailgate closed when testing): Driver Side Black w/ Blue Wire to Lights Grey w/ White Wire to Left Turn Signal Passenger Side Grey w/ White Wire to Right Turn Signal Hopefully this helps! 451964



- 119250KIT

by:

2014 BMW X5


Wow! I ordered this wiring kit for my 2014 BMW X5. I watched a video on the installation and then went at it. Within 10 minutes it was done and ready for the road! Absolutely zero problems. Furthermore there is no cutting of wires and the unit can be easily removed at a later date. This is a rock solid product. I recommend it 100%. I know I won't ever use any thing else! 515285



- 119250KIT

by:


hitch I ordered worked great. video for install was real big help. it all went to well. every thing I needed was provided. I ordered the harness wrong it was reordered. three day later I got it. with instructions went in just that way. people were easy to work with and know that biz. i'm looking at the bike rack that will fit right into the receiver. great people to deal with. 254031



- 119250KIT

by:


I can't review my product yet as I have not used it, but I can review the excellent customer service I received when ordering from etrailer. My products were received before the 3 day shipping and the team was very quick to respond to my emails to get me tracking numbers and stay in touch about deliveries. I will be back to use etrailer again for sure. 310149



- 119250KIT

by:

2016 Volkswagen Golf SportWagen


Installed it on my 2016 VW TSI Wagon. Installation was fairly easy and I've used it at least a dozen of times now with my trailer and it works flawlessly. I like that this kit did not require taping into existing wiring. Sensor wrap around wires and pick up the signal and separately powered box deals with activating trailer lights. Brilliant! 391803



- 119250KIT

by:


Product installed and "learned" as documented. Take time to remove panels so as not to damage clips and fasteners that hold them in place because you will need them when you close the vehicle up. Finally, consider not coiling up individual cables as coiled cables can create electromagnetic fields capable of interfering with vehicle electronics. 363655


Comments

All working fine.

Doug - 04/07/2018

37011

- 119250KIT

by:


The description of the product is accurate. The info on how to install is straight forward and well illustrated. I don't remember if this purchase had video support but I know other purchases from etrailer did. I've been very satisfied. The fact that this product doesn't violate the wiring should keep my vehicle warranty intact. 366909



- 119250KIT

by:


The Tekonsha ZCI has been flawless since I installed it over a year ago. No problems and no issues with overloaded turn signal relays or any of that fuss. And it's super easy to re-calibrate if you ever have to disconnect it from the battery for whatever reason. A great product and great support from eTrailer! 463854



- 119250KIT

by:


Works well. My only complaint was that the wires were BARELY long enough to reach from one side of the vehicle to the other. As in I had to practically stretch one turn signal wire to get it to fit. Granted, my Mercedes Sprinter van is on the huge side, but an extra 6" of wire would have made it a lot easier... 427941



- 119250KIT

by:

2013 Audi Q5


The great thing about this wiring harness is that you don't have to cut or spice any of the vehicle wires. That proved a great idea during my installation because I mis-identified one of the vehicle tail light wires at first. Just moved the connector to the other wire and all worked well. No agitation! 498694



- 119250KIT

by:


Highly recommend this harness. Over a year of regular use and this wiring harness has been great all around. Clear instructions. Very easy installation and the harness can easily and quickly be uninstalled and reinstalled between tow vehicles with no wear and tear or degradation of effectiveness. 482506



- 119250KIT

by:


Very easy to install if one understands how to disassemble and assemble automotive trim...that can be challenging. I suggest buying nylon trim removal tools because they inexpensive and really help getting the job done. I had no issues installing this in a couple hours on my 2017 AUDI Q5. 557714



- 119250KIT

by:

2007 BMW X5


Easy install. The hardest part can be figuring out which wire goes where as my 2007 X5 has integrated tail lights, but that only took a little bit of trouble shooting an a simple trial and error. It helps to have someone in the drivers seat working the light controls + brake pedal. 545115



- 119250KIT

by:


I found etrailer on the web after searching for hitches for my BMW 5 series diesel. I called them wanting to know why they offered a hitch for the 535i series, but not the 535d. Lisa was extremely helpful in finding the proper hitch. I am very pleased with the hitch and wiring kit. 358394


Comments

Thanks for the follow up. The electronics module never worked, in spite of hours of trying and consulting with the manufacturer technicians.

Dr. T - 03/16/2018

35973

Thanks for your follow up and reply. I have reached out to my contacts at Tekonsha and they had indicated that the most common issue with the ZCI not pairing with the vehicle is that the sensor clamps are installed in the incorrect orientation. Other than that some vehicles the ZCI just has a difficult time detecting the vehicle signals to learn the wiring signals your vehicle is sending. At the time that I spoke with my contacts they had not tried this harness on a BMW 5 series so unfortunately they did not have any additional information to pass along at this tim.

-- Rachael H - 3/16/2018


- 119250KIT

by:

2013 BMW X5


Perfect fit for my 2013 X5. If you're understand basic car wiring and can follow simple instructions, this wiring kit is no problem. I purchased this kit specifically because you don't have to splice into the cars wiring and run the risk of the voltage change causing faults. 438120



- 119250KIT

by:

2003 BMW X5


Finally a trailer harness that won't set off faults in my 2003 BMW X5 by tapping into the system. I only used it once so far, but it worked perfectly with no fault codes. Totally worth the price since I can't locate the BMW harness and their electrics are sensitive. 275861



- 119250KIT

by:


Installed in 2015 Mitsubishi Lancer Evolution. Can't buy original one, nobody makes for this car. Installation takes me about one hour. Trailer lights working perfectly. Good thing is , I can remove unit from car , and will be no spliced or stripped wires left . 388124



- 119250KIT

by:


The wire harness was installed today. The technician said that it is a good product for the vehicle. However, it took a while to install it correctly. He definitely would recommend it. I like the finished product and will recommend etrailer in the future. 485221



- 119250KIT

by:

2015 BMW 3 Series


I spent some time trying to get any local hitch installer to install a wiring harness. They all refused because my car was not initially set up for trailering. I ordered the wiring kit from etrailer, persuaded a car shop to install it, and it worked great. 490492



- 119250KIT

by:


Make sure you look for a 11/16" drill bit before starting this project. They are not easy to find. Other than that it bolted right on and looks nice. I bought the ZCI trailer lighting adapter to avoid issues with the BMW indicating lighting bulb issues. 253945



- 119250KIT

by:


What a great product. I needed to wire a newer car for trailer lights but did not want to cut wires for splicing. This system was easy to install, works great, and is noninvasive to the factory wiring harness. I would highly recommend this to others. 360972


Comments

I dont pull a trailer on a regular basis so at times when it has been several weeks or even a couple months, I need to pull the fuse just to reset the switching chip/computer/device - the little box. I works great for no cut wiring. Still am happy that I bought it.

DanH. - 03/31/2018

36631

- 119250KIT

by:

2015 Mercedes-Benz GLA-Class


The directions for installation are poor at best. Quality looking harness. I will let you know if it works once I figure out how to install it. It is a universal harness, so it won't be too specific, but more description would have been better. 516051


Comments

The wiring harness you purchased for the 2015 Mercedes-Benz GLA-class does take a little bit of wire testing to determine how to install. First you want to use the wire tester that came with the kit to test the tail light wires on your vehicle. If you cannot locate the circuit tester from the kit I would recommend purchasing one such as part # 3808
Quickee Circuit Tester
$30.95
. Using the tester, you will need to locate the functions of the wires. In order to determine which wire represents which function you will need to have a friend sit in the vehicle and perform each function while you are testing the wires. After you determine the functions you want to determine what style tail light you have by using the chart in the installation instructions. Follow the chart to attach your connectors from the kit to the corresponding wires depending on what type of wiring system you have, 2 wire system, 3 wire system, Brake tail multiplexed wiring or brake tail turn multiplexed wiring.

-- Heather A - 06/04/2018

39222

- 119250KIT

by:


The trailer hitch and the wiring harness I purchased from etrailer were both excellent products and my contact, Stacey, could not have been more helpful!! The shipment arrived on time and I was able to install both with no problems. Thanks etrailer! 485122



- 119250KIT

by:


everything as advertised as it should be. Not advertised was the excellent service and every attempt to get my product to me on a tight time schedule. Above and beyond, but just what I want to do for my clients. Really great service! 328643


Comments

Still working well!

johnR - 12/27/2017

32277

- 119250KIT

by:

2014 Mercedes-Benz GLK-Class


Was easy to install following etrailer's video of this product. Enabled me to install trailer hitch and lights on my 2014 Mercedes GLK for less than $500 compared to estimated dealer cost of $2000 for Mercedes hitch with lights. 449372


59
127
Show More Reviews

Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?


  • Trailer Hitch Fit Recommendation for 2018 BMW X5
  • Yes, we have confirmed that the Draw Tite hitch part # 75600 that you referenced is a confirmed fit for your 2018 BMW X5 as long as it's not an M model. I attached an install video for a 2017 model for you to check out but the process will be the same. For trailer wiring you'd then want the # 119250KIT which is a fit and doesn't require any hardwiring or splicing. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts;...
    view full answer...

  • Trailer Hitch and Wiring for a 2018 Volkswagen Tiguan
  • We can indeed ship Curt trailer hitch # C13381 to Canada. We also have trailer wiring harnesses you can use. The one I recommend is # 119250KIT because with it you will not have to splice into the vehicle wiring. I have linked a video showing an example installation on a similar vehicle. The other wiring options, # 119190KIT and # C59236, can be used but do require spicing into the vehicle wiring. I also recommend etrailer ball mount kit # 989900 to complete the towing set up for...
    view full answer...

  • Trailer Hitch and Wiring for a 2017 BMW X5
  • For your 2017 BMW X5 a popular hitch option is the Draw-Tite hitch # 75600. This is a 2 inch hitch rated for 6,000 pounds gross trailer weight and 600 pounds tongue weight. I have included a link to a video showing an example installation for you. I also recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and...
    view full answer...

  • Will Curt Trailer Hitch C13381 Fit 2018 Volkswagen Tiguan AWD?
  • I checked with Curt and hitch # C13381 will fit a 2018 Volkswagen Tiguan models S, SE, SEL and SEL Premium. So if your Tiguan is one of those models then this hitch is going to fit; the only thing to note is that you may be limited to using the hands-free liftgate sensor on either side of the hitch receiver. To add a 4-way that will power up your trailer's lights the correct harness for your VW is the ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT. If you are going to be towing,...
    view full answer...

  • Parts Needed to Tow with a 2018 Mazda CX-9
  • The trailer hitch that I recommend for your 2018 Mazda CX-9 is the Draw-Tite Max-Frame Trailer Hitch Receiver # 76020. This is a Class III hitch with a 2" receiver that has a max gross trailer weight of 4,500 lbs and a max tongue weight of 675 lbs. I looked at the online version of your owner's manual and it looks like your CX-9 has a trailer weight limit of 3,500 lbs. I recommend checking out your owner's manual for towing specifications as well. When it comes to the wiring you will...
    view full answer...

  • 4-Pole Trailer Wiring Harness for 2018 Volkswagen Alltrack with LED Lighting
  • The Tekonsha 4-pole wiring harness kit # 118730 is a confirmed fit on the VW Golf Alltrack through model year 2017. For the 2018 model year Tekonsha recommends their ZCI Zero Contact kit # 119250KIT which uses special clamp-on magnetic sensors to detect the vehicle's LED lighting signals. You need make neither cuts nor splices into the car's wiring to install this and it can be easily moved to another vehicle in the future since it is a universal-fit product. Like the harness # 118730...
    view full answer...

  • Will EcoHitch Trailer Hitch Receiver Fit a 2016 VW Golf GTI?
  • The EcoHitch Hidden Trailer Hitch # 306-X7309 will fit your 2016 VW GTI. This 2" hitch is a fit for all models of the 2016 Volkswagen Golf with the exception of R models. To add a 4-way to your '16 GTI the correct wiring harness is # 119250KIT. If you are going to be towing, I recommend checking out Ball Mount Kit # 989900, which may fulfill your towing needs in one tidy package; two ball mounts - one with a 3/4” rise or 2” drop and the other with a 2-3/4” rise or 4” drop - a 1-7/8”...
    view full answer...

  • Recommended Towing Setup For 2017 Audi Q7
  • For your 2017 Audi Q7, if you don't already have a hitch I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" # 76076. This hitch receiver is a black powder coat finish over and e-base coat for excellent rust protection. For your wiring, I recommend the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT if you don't have the factory tow package. This harness uses zero-contact-interface...
    view full answer...

  • Installing A Brake Controller In A 2016 Infinity QX80
  • If you have a factory 7-way on your 2016 Infinity QX80, then you will only need the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Nissan and Infiniti # 3050-P to get your Draw-Tite Activator IV Trailer Brake Controller - 1 to 4 Axles - Time Delayed brake controller # 5504 to function correctly. If you do not have the factory 7-way, then you will need to start with a 4 way connection. If you don't already have one, I recommend using the ZCI Circuit Protected Vehicle...
    view full answer...

  • Recommended Towing Package for a 2015 Lexus RX 350
  • The F-Sport version of the 2015 Lexus RX 350 is a trim package with a stiffer chassis and larger wheels. The Curt Trailer Hitch Receiver part # C13143 will fit versions with or without the F-Sport trim package. The Curt trailer hitch is a Class III receiver with a 2" tube opening. The hitch has a maximum weight capacity of 600 lbs tongue weight (TW) and 4,000 lbs gross trailer weight (GTW). However, you will need to confirm the vehicle's maximum TW and GTW and abide by the lower of the...
    view full answer...

  • Trailer Wiring Harness for a 2012 Volkswagen Golf
  • The 2012 Volkswagen Golf has a pulse width modulation wiring system. It sends varying pulses of power along one wire to operate the different lighting functions of the tail lights. There are wiring harnesses that will work with this type of system. I recommend the Tekonsha ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT because it will not require you to cut or splice into your vehicle's wiring harness. It uses zero-contact interface sensors to identify current flowing through...
    view full answer...

  • Trailer Hitch Recommendation for 2018 VW Tiguan SEL
  • For your 2018 Volkswagen Tiguan we have the Curt hitch part # C13381 which is a confirmed fit and will fit your seat configuration as well. This is a Class III hitch with a 2 inch opening as well. For trailer wiring you'd then want the part # 119250KIT which is also a confirmed fit.
    view full answer...

  • 2015 Volkswagen Golf Sportwagen TDI SE Trailer Wiring Recommendation
  • For your 2015 Volkswagen Golf Sportwagen the only trailer wiring kit we offer that has been confirmed as a fit is the part # 119250KIT. This will require that you run a wire up to the batter of the vehicle as well. I attached an install video that shows how it would install in a similar vehicle.
    view full answer...

  • Trailer Wiring Recommendation for 2018 Lexus NX 300 F Sport
  • For your 2018 Lexus NX300 F-Sport we have universal trailer wiring kits like the ZCI part # 119250KIT which will work well, but at this time (August 2018) we don't have any custom fit options. As far as universal wiring goes though the ZCI is the best option as it doesn't require any splicing. It instead uses sensors to tap into the trailer wiring.
    view full answer...

  • Trailer Hitch and Wiring for a 2013 Mercedes ML350
  • I checked and Curt hitch # C13117 is listed for all models of the 2013 Mercedes ML350 as long as it does NOT have the Active Curve System which is a hydraulically activated anti-sway/roll bar. Installation is rank a 5 out of 10. I have linked the installation instructions so you can see all the steps ahead of time. If you plan on doing some towing I recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch...
    view full answer...

  • Recommended Trailer Hitch Receiver For 2017 BMW X1 Turbo Diesel
  • For your 2017 BMW X1, I recommend the Draw-Tite Class III Max Frame # 76018 which is a confirmed fit for your vehicle. This is a 2 inch receiver with a durable powder coat finish. If you will be towing with this hitch, you will also need wiring and a ball mount with hitch ball. For your wiring needs, I recommend the Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness with Install Kit # 119190KIT. If you don't want to cut or splice your wires in your vehicle we also...
    view full answer...

  • Towing Capacity of 2013 Mercedes-Benz ML350
  • I took a look at the online owner's manual for your 2013 Mercedes-Benz ML350 and found that the vehicle has a 529 pound tongue weight capacity and a 6,613 pound towing weight capacity. I highly recommend verifying this information in your copy of the owner's manual, as its possible you have a slightly different model. If you do not yet have a trailer hitch installed, I recommend the Draw-Tite Class III Max Frame Receiver Hitch # 76141 (as long as you do not have the Active Curve System)....
    view full answer...

  • Recommended Items Needed to Tow with a 2005 BMW X5
  • I recommend using the Draw-Tite Max-Frame Trailer Hitch Receiver # 75492 on your 2005 BMW X5. This is a Class III hitch receiver with a 2 inch receiver opening. It has a 500-lb Tongue Weight (TW) capacity and a 6,000-lb Gross Towing Weight (GTW) capacity which is the same as your X5. For wiring I recommend the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT from Tekonsha. I like to recommend the Tekonsha products because...
    view full answer...

  • Hitch Recommendation for a Mercedes Benz E320 Diesel Sedan to be used for Towing a Trailer
  • Thanks for all the information. The only hitch that we have confirmed as a fit for your 2005 E-Class (E320) sedan is the Curt Trailer hitch # C11701. This hitch is a Class I hitch, with a 1-1/4 inch hitch opening and is rated for a maximum trailer weight of 2,500 pounds, and a maximum tongue weight of 250 pounds. I have included a link below for your reference. Since this is a Class I trailer hitch, using the manufacturer recommend drawbar is recommended. For this hitch, the ball mounts...
    view full answer...

  • No Power To Trailer Connector After Installing On 2016 Lexus RX 350
  • I called my contact at Curt and asked about the installation of the wiring harness, part # 56083 on your RX 350. First you can call the dealership with the VIN and ask if it has a tow package. If so ask them where the fuses or relays may be. I did some research and was unable to find the relay or fuse location for towing. Then check the port you plugged the harness into. Just unplug the # 56083 and use a circuit tester like part # 40376. Turn on the headlights and use the turn signals...
    view full answer...

  • Recommended Tow Package for 2017 Mercedes-Benz GLE350
  • Starting with the trailer hitch, if your customer has the 2017 Mercedes-Benz GLE350 excluding the Active Curve System, I recommend the Draw-Tite # 76141. This Class III hitch is confirmed to fit this vehicle and will provide a 2 inch receiver opening and a towing weight capacity of 7,000 pounds, although the owner will also need to check the capacity of the vehicle itself as listed in the owner's manual. No drilling will be required during installation. I have attached the installation...
    view full answer...

  • Recommended Trailer Wiring For 2017 Toyota Land Cruiser
  • For your 2017 Toyota Land Cruiser Diesel, none of our companies have a confirmed fit customized wiring kit for your vehicle. Because of this, I recommend you go with the Tekonsha ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT. This will allow you to install a 4 way flat connector on your vehicle using a zero-contact interface sensor system that does not require splicing or cutting wires. This will be compatible with your factory wiring getting signal without piercing the insulation...
    view full answer...

  • Trailer Hitch and Wiring Recommendation for a 2016 Porsche Cayenne Hybrid
  • For your 2016 Porsche Cayenne S Hybrid we offer the Draw-Tite Trailer Hitch, part # 75950 that is confirmed as a fit and would work well. For trailer wiring the only option we can recommend at this point is the ZCI kit part # 119250KIT which is a universal wiring kit that requires no hardwiring. Basically you will test the wires of your vehicle taillights for the proper function and then clamp the connectors of this wiring kit on them and they will be able to sense the wiring function...
    view full answer...

  • Recommended Wiring Harness For 2015 GLK-350 Base
  • The Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector # C59236 is not confirmed to fit your 2015 Mercedes-Benz GLK-350. It is a confirmed fit for the 250. The only wiring harness we have to fit your GLK-350 is the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT. This wiring harness uses zero-contact-interface sensors, so there is no wire splicing, but it will require a power lead from the battery.
    view full answer...

  • Recommended Wiring for Semi Tractor to Tow Gooseneck Trailer
  • The wiring on a semi is not normally the same as a standard RV or Gooseneck trailer. You will need to use a couple different harnesses to get what you are looking for. I recommend the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT which will clip onto your truck wiring to capture signal. Then you will need to hardwire a brake controller like # 90195 and use the 7-way brake controller kit # ETBC7 to make the wiring compatible...
    view full answer...

  • ZCI Circuit Protected Vehicle Wiring Harness 119250KIT Installation in 2017 BMW X5
  • The ZCI Circuit Protected Vehicle Wiring Harness kit # 119250KIT includes a circuit tester like # ALL640595 to help you find the correct vehicle wires for harness installation. Since wire colors are not always consistent across production runs testing is the best way to ensure proper connection. This harness is universal so it will definitely work for you but the set-up steps outlined in the linked instructions need to be followed exactly. The linked installation video shows this kit...
    view full answer...

  • Recommended Trailer Wiring Harness for 2018 VW Tiguan
  • Both the Tekonsha # 119190KIT and the Zero Contact Harness # 119250KIT that you referenced are universal kits that will work on your 2018 VW Tiguan. With that being said, there are now custom fit options available for your 2018 model Tiguan that will be a MUCH easier installation. For this, I recommend the Tekonsha T-One Vehicle Wiring Harness # 118765. This will install by simply plugging into factory ports located inside the rear cargo area of the vehicle. Once the connections are...
    view full answer...


Do you have a question about this Custom Fit Vehicle Wiring?




  • Why etrailer.com?

    At etrailer.com we guarantee:

  • Highest quality custom fit vehicle wiring for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate custom fit vehicle wiring information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Test Fit:
Joe V
Expert Research:
Jackie C
Video by:
Zack K
Video by:
Andrew K
Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
Joshua S
Video Edited:
Jacob T
Expert Research:
Adam R
Video by:
Kathleen M
Video Edited:
Dustin K
Installed by:
Cole B
Photos by:
Amber A
Expert Research:
Jeffrey L
Test Fit:
Randy B
Video Edited:
Chris R
Updated by:
Alexander C
Expert Research:
Victoria B
Written by:
Amanda M
Video by:
Zach D
Photos by:
Stacy F
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Shane H
Video by:
Jonathan Y
Test Fit:
Robert C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.




^
About Us
photos and videos
1,056,204

Original Photos & Videos

Produced to make sure you know what you are getting and you get exactly what you need.

installations
35,570

Installations Completed

To make sure products work and fit the way they are supposed to.

etrailer call center
2,476,511

Phone Calls & Emails Answered

1,125,924 phone calls and 1,350,587 emails to help find the right solution.

etrailer training
400+

Average Hours of Product Training

We get to know our products firsthand so experts can better help you.

etrailer service
71

Years of Quality Customer Service

Assisting our neighbors and customers, face to face at the counter.

etrailer experts
193,357

Pages of Expert Information

Created to make sure you have all the answers to your questions, from real experts.