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  5. 4 Flat
  6. Powered Converter
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # 118613
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Custom Fit Vehicle Wiring

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Tekonsha Custom Fit Vehicle Wiring - 118613
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In Use/Installed

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered converter reduces strain on wiring system. Call 800-298-8924 to order Tekonsha custom fit vehicle wiring part number 118613 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (25)
  • Q & A (14)
  • Photos
  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118613

  • Custom Fit
  • Trailer Hitch Wiring
  • Tekonsha
  • 4 Flat
  • Powered Converter

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered converter reduces strain on wiring system.


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)
  • Connects quickly and easily
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes ModuLite to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector
  • 15-Amp mini fuse included


Specs:

  • Maximum amperage:
    • Stop/turn lights: 4.2 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the access panel doors to access this harness.


T-One Connection Location Points Behind Tail Lights

Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided fuse.


Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.


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


ModuLite Powered Tail Light Converter

A ModuLite power module is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.


With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.



118613 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118613 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118613

Average Customer Rating:  4.8 out of 5 stars   (25 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered converter reduces strain on wiring system.

- 118613
by:

This is the second Hitch I purchased from etrailer.com They are very professional, fast and great price. I am very satisfied with there service. Keep up the great job. Thank you. 934827



- 118613
by:

I like the T connectors for a quick install without having to splice wires. Makes it a quick and clean installation 932810



- 118613
by:
2021 Ford Transit Connect

928757



- 118613
by:

It was as described and works great. 919238



- 118613
by:

Auto manufacturers need to work with aftermarket for easier install 877948



- 118613
by:

it took 20min. to do the installation. 812174



- 118613
by:
2017 Ford Transit Connect

Package had everything that was needed. The installation video on the web site was extremely helpful. Nice to see how it was installed on my exact vehicle. Finding the taillight connector, disconnecting it and installing the T connection of the wiring harness was a little difficult and required disconnecting the seat belt on the passenger side. Otherwise everything went smoothly. Website was great and easy to navigate. Will definitely use etrailer again. 764283



- 118613
by:

Well there isn't much to report here. The wiring harness was plug and play, as advertised. Installation was both easy and simple after watching the videos featured along with the product description etrailer's website. If you spend more than 30 minutes before you start putting away your tools call etrailer they will have you on the right track in just a few minutes. 763920



- 118613
by:
2018 Ford Transit Connect

I am very satisfied with this wiring kit! I chose this kit over the others, because I like the way the wiring for the passenger side lights went over the doors. I felt that this method was better than running them under the cargo trim where they might get damaged by a heavy object. (It is a cargo van). Also, the four way trailer connector tucks nicely in the jack storage area. For me this is a plus, since I don't tow that often and it keeps the plug clean and dry. The quality of the kit was excellent. The wiring is exactly the right lengths and it made for a very tidy installation. 727440



- 118613
by:
2018 Ford Transit Connect

This product works for me in my 2018 Ford Transit Connect Passenger Wagon. The directions and videos were helpful but not able to be exactly applied to my vehicle. I also powered it through the fuse panel located in the rear of my vehicle. It works! 711622



- 118613
by:
2019 Ford Transit Connect

Perfect 694914



- 118613
by:
Dodge Journey

Peeeeerfect fit up every thing went as by the video pretty much plug and play I would recommend this product to anyone who need a trailer hitch. I did this by myself wit no help it was a great journey. I actually hid my wires so it looks very professional and factory looking. 649496



- 118613
by:

Fast shipping, awesome products. Makes it easy to install. Will definitely do more business with etrailer 639903



- 118613
by:

Wiring kit seems sturdy enough and installation was reasonable with a few exceptions. 1. All installation videos and instructions featured cargo van models NOT passenger wagon models. There are several differences including significant additional trim and seat belts which must be removed in order to access the wiring connections. 2. A couple wiring splices are required which seem unnecessary had they given a little more thought to design - adding inline fuse and connecting main power wire. Overall, not the best product or experience I've had from etrailer but not too bad. Installation took about 2 hours with most of it dedicated to running the power wire from the back of the van to the battery up front. 612839



- 118613
by:
2018 Ford Transit Connect

Fairly easy install. No good place to route harness out to trailer, but that's the vehicle's design drawback. Having to run a lead from the battery is a little cumbersome, especially with non-powered versions of trailer lighting converters available. 612729



- 118613
by:
2018 Ford Transit Connect

This was my first time installing a wiring harness so I watched a YouTube video before it came. I was worried the wires would be too short, I'd have to drill holes or I'd screw something up. The installation was a breeze. Everything worked as instructed. This is a great produce. 570802



- 118613
by:
2015 Ford Transit Connect

I purchased this particular wiring harness based on the reviews by etrailer.com. I recently installed a Curt hitch on my 2015 Ford Transit Connect and was unsure which wiring harness I should use. After watching the etrailer.com videos and harness comparison, I decided to purchase the Tekonsha brand. Installation was straight forward and the package included everything needed to complete the job. Operational test results were perfect. Thank you very much for the great product and website videos. 539916


Comments
Ive had the hitch wiring for a year now and it has performed flawlessly every time Ive used it. Excellent wiring harness.
Cecil S - 07/10/2019

57667

- 118613
by:
2017 Ford Transit Connect

Great product. Video helped immensely, it could be a little bit more detailed and go slower , but overall it was very good. 483431



- 118613
by:
2016 Ford Transit Connect

Fairly simple installation with a good installation video. I did my install somewhat differently (Ford Transit Connect): Since my vehicle is a passenger wagon with interior panels to remove, I routed the wires under the floor trim at the rear of the van as opposed to overhead. 402345



- 118613
by:

Perfect fit and easy to install. 389159


Comments
Works great
ROBERT M - 06/03/2018

39204

- 118613
by:
2015 Ford Transit Connect

My producted is just as advertised. Hooked into my factory wiring with no problems. It came with all parts I needed to install from start to finish. The videos one the website made installation super easy. I will be visiting again for any future needs. 353416



- 118613
by:
2016 Ford Transit-Connect

Everything fit great, only slight difficulty in running power wire to front of van. I removed panels to hide that wire. 327961



- 118613
by:
2015 Ford Transit-Connect

Best of everything, Price, Selection, Availability, Shipping, Information and additional accessories. Ordered hitch and accessories 5 days before xmas with no intention of receiving before Jan 1st. WRONG, had everything on my porch in 3 days, merry xmas to me. Cant say enough about etrailer.com, Don't buy anywhere else. Thank You 328214



- 118613
by:
2014 Ford Transit Connect

Product was as listed. It was installed with ease highly recommend it for this application 2014 Ford Transit Connect 224632



- 118613
by:
2015 Ford Transit Connect

Ordering, shipping and receiving as agreed. Items arrived within the first day of shipment delivery window. e trailer kept me apprised of the order status. 214059


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Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

  • Trailer Wiring Harness Recommendation for 2017 Ford Transit Connect
    We do offer trailer wiring kits that fit your 2017 Ford Transit Connect. For that the T-One kit part # 118613 is a confirmed fit and would work well. This is our most reliable and popular option so it would be the kit we recommend highest. I also attached an install video for this kit for you to check out as well.
    view full answer...
  • Does Power Wire For Trailer Wiring on 2016 Ford Transit Connect Require Running to Battery
    Not all vehicles can handle the additional amperage draw of the trailer taillights on the vehicle taillight circuits. Those vehicles need setup that draws power from the battery. Some vehicles have higher rated circuits that can handle this, and others need to have the power drawn straight from the battery to protect the taillight circuits. For your 2016 Ford Transit Connect you need to install a harness that draws power from the battery to protect the taillight circuits. For that you...
    view full answer...
  • Troubleshooting 4-Pole Wiring Harness in 2015 Ford Transit Connect
    The T-One wiring harness you referenced, part # 118613 that fits your 2015 Ford Transit Connect, uses a 12V power wire and 15-amp fuse to deliver power to operate the harness. If the entire harness suddenly stopped working then the first thing to check is the fuse. You don't need a wiring schematic to troubleshoot. The other most common reason for the harness to stop working is a bad ground connection. A weak ground could cause some light functions to work while others do not. Taillights,...
    view full answer...
  • Does Trailer Wiring for 2014 Ford Transit Connect work with LED Trailer Lighting
    That sounds like an issue that factory trailer wiring would have if it was installed in your 2014 Ford Transit Connect. I can tell you that if you install the Tekonsha part # 118613 which is confirmed as a fit for your vehicle it will easily work with trailer's that have LED taillights. It has been tested with this style of lighting as well as incandescent and it works great.
    view full answer...
  • 7-Way Trailer Wiring and Hitch for 2015 Ford Transit Connect
    To install a 7-way connector like what you described in your 2015 Ford Transit Connect will first require a 4-way like the part # 118613 which is a confirmed fit. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller. This kit comes with everything needed to wire up the 7-way and install a brake controller. For...
    view full answer...
  • Plug And Play Trailer Wiring For 2015 Ford Transit Connect
    If you are needing basic trailer wiring for your 2015 Ford Transit Connect, I suggest the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item # 118613. This kit will allow you the basic light functions on your trailer and the install is straight forward and nearly plug and play. Below you will find a review and installation video of the wiring harness. To add a 7 way to the vehicle, I recommend the Universal Installation Kit for Trailer Brake Controller Item # ETBC7....
    view full answer...
  • 4-Pole Trailer Wiring Harness for 2014 Ford Transit Connect
    Many of the 4-pole trailer wiring kits we sell will install at the vehicle's tail lights. The harness connectors on such kits install in between the vehicle plugs and the tail lights themselves. For the 2014 Ford Transit Connect we have three such products, all shown on the linked page, and all of these use custom connectors selected to match those on your vehicle. Of the three we have I recommend the Tekonsha # 118613 since we find their wiring products to be the most reliable. If...
    view full answer...
  • Trailer Hitch, Wiring, and Brake Controller Recommendation for 2016 Ford Transit Connect
    We can definitely help get your 2016 Ford Transit Connect setup to tow a trailer. The first thing you need is a trailer hitch, which for that the Draw Tite part # 75852 is a really great option with plenty of towing capacity that also installs easily. You will need to start with a 4-way (if you do not have one). For that you would want the # 118613 which installs easily and is very reliable. From there you would need to convert the 4-way to a 7-way so that you can install the brake...
    view full answer...
  • Will Draw-Tite Trailer Hitch Fit 2019 Ford Transit Connect
    Though I'm not quite sure what you mean by "what are the dimensions" in reference to Draw-Tite Max-Frame Trailer Hitch # 75852, I can tell you that this hitch will fit all models of 2019 Ford Transit Connect, so if that's what you have it will absolutely fit your vehicle! I have added a link to the installation instructions as well as an install video for you to check out of this hitch being installed on a Ford Transit Connect. For towing you will also need a wiring harness to power...
    view full answer...
  • Recommended Trailer Hitch Receiver For 2016 Ford Transit Connect Wagon XLT Long Wheel Base
    For your 2016 Ford Transit Connect Wagon XLT with long wheel base, I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" # 75852. This is a confirmed fit for your model as well as other Connect models. It has a stylish round-tube design and has an integrated mounting bracket for your trailer wiring. It has a black power coat finish over an e-coat base for excellent rust protection. For your wiring, I recommend the Tekonsha T-One Vehicle Wiring Harness...
    view full answer...
  • Class III Trailer Hitch Fit on 2015 Ford Transit Connect with Long Wheel Base
    My contacts at Draw-Tite verified that their 2-Inch Class III hitch # 75852 is confirmed to fit on the long wheelbase version of your 2015 Ford Transit Connect. I linked an install video for the similar Curt hitch # C13167 - also a confirmed fit. For a wiring harness for towing you can use the Tow Ready 4-pole wiring kit # 118613. The recommended ball mount # C45030 can be used with a ball that has a 1-inch shank, such as 2-inch ball # 63845.
    view full answer...
  • Parts Needed to Add a P3 Brake Controller to a 2016 Ford Transit T250 or Transit Connect
    For the 2016 model year Ford had both a Transit Connect and a Transit T250 but in either case there isn't a wiring harness to plug in a brake controller so one will have to be hardwired in. It is not all that difficult at all; just a lot of running wires to various places on the vehicle. To get started the first thing you will need is a trailer connector if the vehicle does not have one already. If you have the Transit T250 then I recommend # 22114 which adds the 7-Way you will need...
    view full answer...
  • Ball Mount and Cargo Carrier for 2014 Ford Transit Connect Van
    The Curt Class III hitch you mentioned, part # C13167 provides a 2 inch square receiver that the shank on your basket will slide into, so you won't need a ball mount to use the cargo basket. You would want to choose a cargo carrier that has an angled shank to provide greater ground clearance. The Curt # C18153 shank provides 2 inches of additional ground clearance. If you will be doing some towing you will need a ball mount. To determine which one to use, you'll measure the height of...
    view full answer...
  • Can 2016 Ford Transit Connect Can Support Scooter Lift
    The Curt Class III Trailer Hitch # C13167 that you are looking at features a tongue weight capacity of 525 pounds. With that in mind the hitch itself is up to the task of carrying your lift that will weigh around 300 pounds when loaded. It has been tested and rated to safely support this tongue weight with plenty of safety margin as well. Hitch manufacturers do take into account the extra weight that bouncing down the highway puts onto their hitches and are rated accordingly. The other...
    view full answer...

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Info for this part was:

Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Joshua S
Video Edited:
Jacob T
Video by:
Kathleen M
Video by:
Dustin K
Written by:
Laura H
Installed by:
Cole B
Test Fit:
Randy B
Test Fit:
David F
Test Fit:
Ryan G
Updated by:
Sarah W
Updated by:
Alexander C
Updated by:
Isabelle B

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