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ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection

ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection

Item # 119192
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ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection Vehicle End Connector 119192
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This ModuLite Ultra Protector with integrated circuit and overload protection safeguards both itself and the tow vehicle against electrical shorts or mis-wiring situations. Lowest Prices for the best wiring from Tekonsha. ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection part number 119192 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Tekonsha Wiring - 119192

  • Trailer Connectors
  • Vehicle End Connector
  • 4 Flat
  • Plug and Lead
  • Tekonsha

This ModuLite Ultra Protector with integrated circuit and overload protection safeguards both itself and the tow vehicle against electrical shorts or mis-wiring situations.


  • Re-settable short circuit & overload protection safeguards itself and the tow vehicle against harmful electrical shorts and mis-wire situations
    • Automatically resets
  • Virtually eliminates draw on the vehicle's tail light circuit
  • Tail light circuit has been upgraded to work with vehicles using Pulse Width Modulation (PWM), allowing converter to fully turn on, giving trailer lights full brightness during activation
  • Powers the trailer's stop, turn, tail and running lights directly from the tow vehicle's battery
  • Unit prevents feedback from trailer to vehicle system
  • May be used on 2- and 3-wire systems
    • When used on 2-wire systems, brake wire on harness must be grounded
    • Adapts a 3-wire system on the towing vehicle to work with a 2-wire system on the trailer
  • Will work on vehicles and trailers with either LED or incandescent bulb tail lights
  • Works with most multiplex wiring systems
  • 4 or 5 flat plug sold separately
  • Optional install kit (118151 - sold separately) available to help run wire to vehicle battery

Warning: Overloading circuits can cause fires. Do not exceed:

  • Maximum stop/turn light: 4.2 amps
  • Maximum tail lights: 16 amps

Read vehicle's owners manual and instruction sheet for additional information.

119192 Mod u Light Ultra Protector Wiring Harness w/Integrated Circuit & Overload Protection

119192 Installation InstructionsInstallation Details 119192 Installation instructions

This Product Fits The Following Vehicles

2007 - 2012 Mercedes-Benz GL-Class GL450

2012 - 2012 Mercedes-Benz GL-Class GL450 - without tow package

2007 - 2011 Mercedes-Benz GL-Class GL450 and GL550 - without tow package

2008 - 2012 Mercedes-Benz GL-Class GL550

2012 - 2012 Mercedes-Benz GL-Class GL550 - without tow package

California residents: click here

Video of ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection

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

Video Transcript for Traile Wiring Harness Installation - 2010 Mercedes-Benz-GL-Class

Today on our 2010 Mercedes GL450, we'll be installing the Tow Ready ModuLite wiring harness with trailer pigtail, part number 119192. To begin our install, we'll first remove the driver and passenger side interior trim panels. Here on the passenger side, we'll simply turn the securing knob, unlocking it, pulling the panel out, and setting it aside. On driver side, we'll turn the knob, remove the door, then we'll need to remove the interior compartment. To do this we'll unlock both fasteners and then pull up and out on the box at the same time releasing it from any other points that secure it. Now on both sides, we can gain access to the manufacturers taillight wiring. Next, we'll need to test the wiring so that we can locate the circuits for our running lights, brake signal, and turn signals as this is considered a 3-wire taillight system where each circuit is independent from each other. To test out lights, we're going to go ahead and remove the connector from the back of the housing.

Now, we have access tot he taillight wiring connector, we'll use the test light to locate the correct circuit for each wire. Here on the driver side, we've located the olive wire with the black tracer will be the running light circuit, the red wire will be the brake circuit, and the black wire will be our left turn signal circuit. Here on the passenger, we'll use the manufacturers green wire with a black tracer. Now, we'll move back over to the driver side and start making our connections. It can be a little easier to make the connections if we remove some of the manufacturers tape and pull the wire loom apart. Now, we can go ahead and slide on the quick splice connector provided with the install kit and the follow it up with the wiring coming from our new Tow Ready harness.

Once the wire is in place, we'll crimp it down and close the clasp. We'll go ahead and repeat the process for our brake and turn signal circuit. Now, with our driver side connected, we can go ahead and take some black electrical tape and re-wrap the wiring harness. This will help to keep the wires together and wrap up our connection points to keep out any dust, dirt, debris, or moisture. Once we have the wires taped up, we'll go ahead and re-install the connector back into the taillight socket. At this point, we'll need to remove the rear threshold.

To remove the rear threshold, there are 2 fasteners that will need to be removed. These are T30 Torx bit screws. Once removed, we can then get underneath the threshold with a interior trim panel tool or a flat blade screwdriver and release the fasteners underneath the threshold. Once we have it popped free, we'll go ahead and turn it over and show you the fasteners. Now, we'll go ahead and set that aside.

Take the green wire and run it from behind the interior trim panels on the driver side, underneath the threshold, and over to the passenger side. Here, we'll go ahead and make the same connection as we did earlier by removing the manufacturers tape, installing the quick splice connector, and then our Tow Ready harness wiring. We'll crimp it down and close the clasp. We'll re-tape the wires and then re-install the connector back into the socket. We'll leave our power wire over here this time as we'll cut off the excess later. Next, we'll take out white wire with the pre-attached ring terminal, which will be the ground wire for our module box, and attach it to the body of the vehicle using a self-tapping screw provided with our install kit. Now, we'll take out trailer wiring and feed it down underneath the vehicle. To do that we're going to go through one of the manufacturer's grommets here on the driver side. We'll go ahead and remove the grommet from the interior side panel, cut off one of the nipples of the grommet, and then feed the wire through the grommet. Once we feed the wire through, I'm going to go ahead and wrap up the wiring with some black electrical tape to help hold it together and protect it as it will be routed underneath the vehicle. We'll go ahead and feed it through the hole and then re-install the grommet. Next, we'll move underneath the vehicle and route the wire over to the center of the vehicle and down to the hitch. Now that we have our wire to the hitch, on this application, we'll be installing the Hopkins adapter 4-pole to 7-pole and 4-pole, part number 37185. To secure it to the vehicle, we'll be using the DrawTite mounting bracket for 7-way, part number 18138, and the DrawTite no-drill mounting bracket, part number 18136. To start, we'll take our 7-way connector and secure the 7-way mounting bracket to it using the hardware provided. Next, we'll go ahead and mount the 7-way bracket onto the no-drill mounting bracket. Now, before I install the bracket onto the vehicle, I'm going to go ahead and start wrapping up the wires with some black electrical tape. Once again, this will help to bundle up our wires and protect it from any of the outside elements. Note on this vehicle, we'll not be using the purple wire, which is for reverse taillights. The purple wire, we're going to go ahead and cut short. We'll go ahead and feed them through the hole in the bracket and install the bracket onto the vehicle. To secure the bracket to the vehicle, we'll use a worm-gear clamp provided with our no-drill mounting bracket. Now, with our 7-pole bracket secured to the hitch, we'll go ahead and start connecting our wires, stripping back both ends and adding the butt connectors in between. For this application, we'll be matching color for color. Once we've made all our connections, we can go ahead and wrap up the rest of our wires with some black electrical tape making sure to double up over the butt connectors to help prevent any dirt, dust, debris, or moisture from causing corrosion in these contacts. With that done, we'll need to secure the wiring up underneath the vehicle, keeping in mind when you route your wires, you want to stay away from any moving components, such as steering or suspension, or excessive heat such as exhaust. We'll run the wire up to the body lip. For this application, we'll be using a red line metal loom clamp, part number A0250, and a self-tapping screw. Once secured, we'll pull the excess wire back over underneath the driver side taillight assembly and then back up into the vehicle. Now, we'll move back to the driver side quarter panel. Here, we'll need to mount the converter box securing it to the manufacturer's wiring with a long black zip tie and then secure any of the wiring necessary to keep it bundles and out of the way. We'll cut off the excess of the zip tie to clean up our install look and then re-install the interior pocket and cargo panel. Next, we'll need to secure the wiring as it runs underneath the threshold over to the passenger side. To do this, I'm going to use a couple pieces of black electrical tape. This will be a temporary hold until the threshold is back in place. Then, we'll go ahead and re-install the rear threshold. Next, we'll move over the passenger side interior trim panel where we'll cut off the excess from our power wire. Next, we'll go ahead and prepare the fuse holder. To prepare the fuse holder, we'll cut it in half and strip back both ends. We'll add a ring terminal to one side and a yellow butt connector to the other. Next. We'll go ahead and strip back our power wire and then secure it to the yellow butt connector making our fuse holder inline with the power wire. Once we do that, we can once again go ahead and wrap up this connection point with some black electrical tape. Now, we'll go ahead and remove the nut from the positive battery post here in the fuse panel at the rear of the vehicle. Note that this application is not intended to come off completely, so we'll go ahead and back it off partially, and then, we'll use a pair of side cutters to cut a small slice into the ring terminal and fit it over the positive battery terminal stud. Then, we can re-secure the nut securing the ring terminal to the stud. With that done, we'll go ahead and install the fuse into the fuse holder and install the fuse holder cap. With that, that will complete the install. Next, we'll go ahead and show you how to test the new 4-pole connector. We'll simply take out test light and hook the ground clamp to the negative terminal. Then, using our test light, we'll test each point of our 4-flat connector, testing each one the other 3 terminals with the corresponding indicator starting next to the ground terminal will be the running light, then the left turn signal, left brake, and the right turning signal and brake. This will complete the install of our Tow Ready ModuLite wiring harness, part number 119192, on our 2010 Mercedes GL450. .

Customer Reviews

ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection - 119192

Average Customer Rating:  4.9 out of 5 stars   (7 Customer Reviews)

This ModuLite Ultra Protector with integrated circuit and overload protection safeguards both itself and the tow vehicle against electrical shorts or mis-wiring situations.

- 119192
2005 Dodge Ram Pickup

fast shipping and easy to install and fixed my 2005 dodge truck that didn't have left turn signal on trailer 96114

did you install it or have a dealer install?
-- comment by: Dean - 06/16/2014

working great with this on the truck I dont have to worry about not having turn signals!
Ron - 08/21/2014


- 119192

Everything I've ordered has been on time and performed as it should. Will order again as needed. 640623

- 119192

Works great! 606109

- 119192

Product worked great. Installing it was easy. Sadly the car was lost in Hurricane Harvey. 453353

- 119192
2010 Mercedes-Benz GL-Class

Exactly what I wanted and ordered. Shipped quickly 181700

- 119192
2003 Dodge Ram Pickup

Superior products with EXCELLENT directions enclosed within each packaged unit ordered! Will definitely use this site for any related needs!! 146008

- 119192
2013 Audi A-4

Regarding your adapter for trailer lights for my New 2013 Audi A-4. I like the product. It works fine and the quality seems very good. Thanks. However the directions leave a lot to be desired. 1- I wish it had a sheet saying how a car should be wired. For instance you state that some VW-GTI's and some Mercedes have a "different" system . that left me worrying that perhaps I had a different syst. because Audi has always had amber taillights in the past, I was worried I might be hooking up wrong. A list stating "2013 Audi A-4 - standard 2 wire syst." 2-I wish you would state clearly what a 2 wire syst. is and what a 3 wire is. To a non professional installer it makes no sense. A non amber 2 wire syst. has four wires including ground and a 3 wire has 5 wires inc ground. It left me wondering if the new electronic cars somehow use two or three wires. 3- The directions should have separate diagrams for 2 and 3 wire. the red wire going to ground makes no sense as this seems like a hot lead to chassis ground. Obviously it is not, but There was head scratching here. The label on the wire itself cleared this up, but I was reading the directions and did not notice the tag at first. 4- The wires should be labeled "in" and "out" It becomes obvious that the short set is to connect into the rear corner of the car, but it would be nice to confirm that. 5- The two green wires. These Must be marked better! One is about 12in. longer than the other, and the short one is the same length as the out bound wires. so I assumed that the short one was outbound and the long one goes to the right corner for right directional. This was backwards. I now had to cut both green wires and reverse them, which adds two more connectors in the system than I would like. I am an "advanced amateur" installer. I have probably installed about 30 taillight plugs on my various cars, both two and three wire. This is the first in which I needed a wire from the battery. I would have certainly appreciated a paragraph regarding why this is necessary. Not critical, but helpful to understanding. I appreciate that you make this product. The local Audi dealer has no idea regarding this. The dealer said "go to a trailer place" I now have working trailer lights on my New Audi. My business is selling and servicing German Sailplanes. It is completely necessary to have trailer towing capacity in my business for these lightweight 1400 lb trailers. A separate instruction sheet with the above areas covered would go a long way to making the installation of your very useful product much more simple. 76342


Ask the Experts about this Tekonsha Wiring

  • 3 Wire to 2 Wire Converter to Combine Separate Brake Light and Turn Signal Circuits
    Vehicle to Vehicle Tail Light Converter # 118158 and the Curt version, # C56196, both take combined brake light and turn signal circuits and separate them out. You are looking for the opposite which is basically what any trailer wiring harness with a converter for a vehicle will do. If this is for a flat tow set up or an application other than towing a trailer you could use Brite-Lite converter # RM-732. If it is going on a vehicle to tow a trailer then I would need to know the year,...
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  • High Capacity Trailer Wiring Converter for Trailers with A Lot of Lights
    The highest rated converter box in terms of amperage capacity is # 119192. It is rated for 4.2 amps for brake and turn signal lights per side and 16 amps for running/tail lights. Since you are using LED lights though the power draw from those lights won't come close to the capacity of this system. This is a powered converter and it can be used on vehicles that have combined stop and turn signal lights. All you would do is ground the red wire with the white wire and use the green wire...
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  • Troubleshooting Trailer Wiring Harness that Shorts Out Running Light Circuit when Connected
    If when your trailer harness is installed (correctly) it causes fuses to blow and prevents your left blinker from functioning it would be safe to assume that the harness is bad and needs to be replaced. You might double check that all of the connections were made solidly and there wasn't any exposed wire shorting out at all. I attached an FAQ on troubleshooting 4-ways plus a video on how to test them although it sounds like your harness has already been determined to be shorted out. Most...
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  • Trailer Wiring Harness Converters Keep Failing when Installed on a Semi Truck
    You mentioned that the truck is a semi truck. Does it run off of a 24 volt system? If so then that would be why you are having bad luck with converters. Trailer LED lights run off of 12 volts just like incandescent lights but LEDs draw much less amperage so that is the big difference between the two types. LED lights can run off of a lower voltage but often times they appear dimmer. We have a converter # 119192 that is rated for 4.2 amps for brake lights and turn signals and 16...
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  • Removing European 7-Way and Installing US 4/7-Way on a 1999 Land Rover Ranger Rover
    A European 7-Way does the same thing that a US 4-Way does so the problem you would run into is that you would still need a converter of some kind because the European 7-Way has separate brake light and turn signal circuits. US trailers have combined turn signal and brake light circuits. What you could do is cut off the European 7-Way. Then use a circuit tester such as # 40376 to test the wires to determine the functions. Then you could use converter # 119192 and 4/7-Way connector # HM48470....
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  • Hardwire Installation of Vehicle Wiring Harness and Brake Controller on 2006 Dodge Ram
    It sound like you are going to want to double check the installation of the Modulite Ultra Protector Wiring Harness # 119192. For your 2006 Dodge Ram, the vehicle wiring is separate. This means the brake and turn light signals are sent along different wires. Since the Ram has separate wiring, you will want to use the 3-Wire process to install the # 119192. I have attached a wiring diagram to help you better visualize all of these connections. When wiring the # 119192 harness, you will...
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  • Best Way to Bypass TIPM for Trailer Wiring on a 2008 Dodge Ram
    The TIPM of your 2008 Dodge Ram can be frustrating to deal with in terms of trailer wiring. When you short out the TIPM you have to take it to a dealer so that they can reset it, and they will only do this so many times before you have to spend a ton of money to replace it. The best way around the TIPM is to bypass it all together with the trailer wiring. For that you can use the wiring harness part # 119178KIT for a 4-way, and then for converting the 4-way to a 7-way you would want...
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  • Recommendation for Towing Trailer with European 7-Way on Tow Vehicle
    We do not currently have an adapter that will allow you to connect the European 7-Way connector on your vehicle to a US connector on the trailer. I recommend simply cutting off the 7-Way on your vehicle and replacing it with a standard 7-Way blade connector like the Pollak # PK11893. You will want to use a circuit tester like # PTW2993 to determine the functions of the wires by having somebody apply the different brake and tail light functions while you test each wire to check for its...
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  • Comparing the Tekonsha Wiring Harness Part # 119192 and Part # 119190KIT
    The ModuLite Ultra Protector Wiring Harness part # 119192 is missing a few parts when compared to the Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness part # 119190KIT. The latter kit comes with a fuse holder, circuit tester, and 4-way trailer connector whereas the other does not. For your 2015 BMW X3 I highly recommend the Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness part # 119190KIT as you will need the circuit tester and trailer connector...
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  • Troubleshooting Trailer Wiring that has Blown Up Two Tail Light Converters
    Although taillight converters, just like any other electronic device have a set lifespan, losing two of them in rapid succession tells us that something is going on. The two most likely causes are a short circuit in the trailer wiring and overloading the converter. First, check the wiring on your trailer. Beginning at the trailer connector and working your way back to each lamp, closely examine the wiring. Wire insulation can become brittle over time, look for any cracked or worn...
    view full answer...
  • Replacement Trailer Connector for 2007 Dodge Ram Cab and Chassis and How to Wire in Camper Lights
    First, if your 2007 Dodge Ram cab and chassis model came with a factory installed 4/7-Way then you can use # HM40975-11933 to replace it. It plugs into the factory wiring harness under the truck. What I would do is to wire the camper light wires to either a trailer side 4-Way or 7-Way connector, depending on what all functions are needed, and plug that into the trucks trailer connector instead of hardwiring it in. For a 4-Way you can use # HM48110. White is ground, brow is running...
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  • Higher Amperage Powered Trailer Wiring Harness For Truck Camper and Trailer at the Same Time
    It sounds as if you may be overloading the tail light circuits on your 1990 Dodge Ram D250, causing electrical issues because of the extra lighting on your truck camper and your trailer. I would recommend going with the Modulite Ultra Protector Wiring Harness w/Integrated Circuit & Overload Protection, item # 119192. You will also need the Modulite Wiring Kit, # 118151, to complete the installation. When installing this harness on your 2 wire system (same bulb for stop and turn signals)...
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  • Comparing the ModuLite Harness Part # 119192 and the Upgraded Modulite Harness Part # 119147KIT
    The main difference between the ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection part # 119192 and the Upgraded Modulite Vehicle Wiring Harness Kit with 4 Pole Trailer Connector part # 119147KIT is that the harness ending in "47" has an included circuit tester whereas the harness ended in "92" does not. Other than the package contents, the harnesses are virtually identical. Either harness would work for what you are trying to do. If you already have...
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  • Parts Needed to Add Trailer Wiring and a Brake Controller to a 1991 Dodge D350
    You could use the wiring harness, # 119192 and the wiring kit # 118151 on your 1991 Dodge D350. However, unless your trailer is drawing more than 7.5 amps for brakes/turn signals and/or 7.5 amps for running lights, you can just use the Tow Ready harness # 118317 and it will be much easier. But to add a brake controller as well, you will also need to add a 4 and 7 Way installation kit # ETBC7. Your brake controller will need to be hardwired into the truck. I have included some instruction...
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  • Where to Connect Power Wire for the Trailer Wiring Harness # 119192
    The power wire of the trailer wiring harness part # 119192 that you bought needs to connect directly to the positive battery terminal of the battery in your vehicle. It's purpose is to draw power directly from the vehicle battery for the trailer lights bypassing the vehicle's delicate wiring. If you were to power it from a fuse box like what you mentioned you'd not get the circuit protection and you'd void the warranty.
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  • Trailer Lights Not Working on a 2008 Mercedes-Benz GL320 With ModuLite Ultra Protector 119192
    The ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection # 119192 has a re-settable short circuit and overload protection built in that protects itself and your 2008 Mercedes-Benz GL320 from electrical shorts and mis-wiring problems. This means that it will shut itself off and restart instead of allowing a fuse to blow. Since you have tested the functions on 7-Way of your GL320 and they seem to all be operating properly the problem is most likely on your...
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  • Troubleshooting Trailer Hazard Lights that Don't Come On
    Most likely the problem is a weak ground on the trailer wiring. When your hazards are on all of the trailer and vehicle turn signals will be activated at the same time so a bad ground could prevent the lights from working. Check the conditions of the grounds of each light assembly and the condition of the main ground from the trailer wiring harness to the trailer frame. Make sure it is making a good connection to a clean metal surface.
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  • Recommended Brake Controller for 2007 Mercedes-Benz GL450
    The Tekonsha Primus IQ Trailer Brake Controller # TK90160 is compatible with your 2007 Mercedes-Benz GL450, however it is not the best brake controller and there is not a custom wiring harness available for your vehicle. If you want a better brake controller, the Prodigy P3 # 90195 is a better option. It has preset boost options as well as an LCD screen to make diagnostics and function easy to understand. For your wiring, the Universal Brake Controller Install Kit # ETBC7 is what...
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  • Availability of Trailer Wiring Harness for 2012 Mercedes-Benz M-Class
    None of our wiring suppliers offers a trailer wiring harness that is compatible with the electrical system in your 2012 Mercedes-Benz M-Class. You will likely have better luck checking with your Mercedes-Benz dealership for a wiring harness that will fit your vehicle.
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  • What is the Highest Rated Trailer Wiring Harness for a Vehicle
    My first question is if your 2006 International 4400 runs on a 12 volt or 24 volt electrical system? If it is a 24 volt system that would be the problem and the voltage would have to step down to 12 so the trailer wiring harness will work correctly. If it is a 12 volt system then you could reduce the stress on the wiring harness you use by switching the trailer over to LED lights. The highest rated converter box is # 119192 which is rated for: Maximum stop/turn light: 4.2 amps Maximum...
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  • Recommended Wiring Harness for Adding Hard bags with Led Lights to 2003 Honda VTX 1800
    You most likely just need to splice into your current rear signals for function. The issue is only if you want to combine functions like a trailer. In that case, you would need the Tekonsha ModuLite Ultra Protector Wiring Harness w/ Integrated Circuit and Overload Protection # 119192. This will be compatible with LED lights.
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  • Troubleshooting Trailer Light US To Euro Wiring Conversion
    I recommend checking the vehicle side and trailer side connectors for any signs of corrosion or damage and repair as needed. If the connectors look fine, I would test the vehicle side trailer connector with a circuit tester, like part # 40376, to make sure the vehicle is sending power to the trailer. I would test each pin as a helper activates the different tail light functions on the vehicle. If there is no power to the vehicle brake and hazard lights, check your tow vehicle fuses as...
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  • Where Does the Red Wire of the Wiring Harness 119192 Go When Installing on a Vehicle
    When you install the Tow Ready Wiring # 119192 on a vehicle whether or not you ground the red stop wire depends on the lighting configuration of the vehicle this harness is installed onto. If you have a separate wiring setup where your blinkers and stoplights are on different bulbs/circuits then the stop light wire gets run to the stoplight circuit of the vehicle. If your vehicle has combined taillight circuits where the brake lights and the blinkers are on the same circuit then you...
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  • Recommended Trailer Wiring Harness For 2009 Mercedes-Benz S-Class
    We do have the wiring harness that is designed for your S-Class Mercedes-Benz if it is an S550 model. I recommend the ZCI Circuit Protected Wiring Harness, part # 119250KIT. Installation of this kit is easy by just clamping on to the appropriate wires on your S550, attaching the ground wire to a clean bare metal surface, and then running the hot lead wire to the positive post on your battery. This kit comes with a circuit tester to help identify the functions of the wires. The wiring...
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  • Trailer Wiring Tail Light Converter Blew After Plugging In Trailer At Night
    It is possible that your trailer has too many running lights and it overdrew the converter causing it to blow. There is a heavy duty converter, # 119190, but it is a hardwire installation and not a T-connector style. You can use it but it will have to be spliced into the tail light wiring. It is rated for 7.5 amps per circuit for running lights. For even more capacity # 119192 is rated for 16 amps. There could also be a short on the trailer side that caused the problem. Check the trailer...
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  • P3 Brake Controller Installation Parts Needed for a 2011 Mercedes Benz GL 450
    You will need to start with a 4-way (if you do not have one). For that you would want the # 119192. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90195. This is our best selling...
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  • Recommendation for Wiring a Camper to a 7-Way Wiring Connector
    What I would do in your situation is take a trailer side 7-way like the # H20046 and make an adapter out of it for your camper. So when the camper is in your truck you could just plug in the adapter to the 7-way located in the truck bed. Without knowing what the wiring of your camper is like I attached a picture of a chart that shows the wiring code of the # H20046 so you would know how to wire it to your camper. This will allow your trailer to still be able to use the 7-way at the rear.
    view full answer...
  • What Wiring Is Needed to Tow Boat Trailer With Slide-In Camper On A 2007 Dodge Ram 350
    On the Tow Ready Wiring, # 119190KIT, the 15.9 capacity comes from the maximum taillight rating of 7.5 amps and the maximum stop/turn light rating of 4.2 amps per side. Using two Modulites will not give you any more capacity on your 2007 Dodge Ram 3500 because they will both need to be wired inline to your vehicles electrical system, so the vehicles electrical system will still be handling all the current. Your 2007 Dodge Ram 3500 is listed to use the Draw-Tite Wiring, # 119178KIT,...
    view full answer...
  • Brake Controller and Install Wiring Recommendation for a 2011 Mercedes Benz GL 450
    For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount of braking the tow vehicle is applying and applies a proportionate amount to the trailer brakes. To find the correct wire to use for the stoplight switch wire (red wire), of the brake controller you will need to use a circuit tester like...
    view full answer...

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    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

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

Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Video Edited:
Joshua S
Test Fit:
Nicholas E
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Alexander C
Updated by:
Isabelle B
Video by:
Alan C

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