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  1. Custom Fit Vehicle Wiring
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  4. Trailer Hitch Wiring
  5. 4 Flat
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T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Item # 118277
Retail:$90.43
Our Price: $47.72
You Save: 47%
Custom Fit Vehicle Wiring

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Tekonsha Custom Fit Vehicle Wiring - 118277
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into OEM tow package harness - no cutting, splicing or tapping. Powered ModuLite reduces strain on wiring system. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118277 or order online at etrailer.com. Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (25)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring - 118277

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

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into OEM tow package harness - no cutting, splicing or tapping. Powered ModuLite 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
    • Designed for use with a factory tow package
    • Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Tow harness with 4-way connector plugs into connection point in rear cargo area
    • Power wire connects in engine compartment
  • 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
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's factory tow package wiring harness, which is located in your rear cargo area on the driver's side. You will have to remove the rear threshold plate and interior paneling to access this harness. The power wire plugs into the factory wiring harness in your engine compartment, behind the driver's-side headlight. Once you've plugged in the T-connector, connect the hot lead with the fuse holder to the postive terminal on your battery.


Once installation is complete, the 4-way connector will be stowed in your rear 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.



118277 Tekonsha T-1 T-Connector - OE Replacement - 4-Way

Installation Details 118277 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - 118277

Average Customer Rating:  4.9 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 OEM tow package harness - no cutting, splicing or tapping. Powered ModuLite reduces strain on wiring system.

by:
2016 Mitsubishi Outlander

Watched the installation video a couple times. The hitch went on exactly as described. it took me about 4 hours (including the electrical harness) to do. That was from getting it out of the package to completely cleaned up. I was on the garage floor so that slowed me down because of the confined space. Only real problem I had was locating the .25 inch plates. They were not in the box of parts. I eventually located them taped inside the receiver part of the hitch. I plan to use it for small trailers and bike racks. I have not done that yet but I expect that will be fine.

Jeff B.

2/6/2018

Works great! Used for [rental] trailers and hitch cargo rack also form etrailer



by:

This trailer hitch works great! Not much to really say about it. It does its job properly and it in installed correctly and safely. We used it to move the last of our stuff from Charlotte to St. Louis via Uhaul. Will definitely be back if we have other things we want to get installed from them.



by:
2018 Mitsubishi Outlander

This product was well thought out and was easy to install. The hitch took me about an hour and the wiring harness about another our. I had ordered the wrong wiring harness. If you have plug near your battery box for the battery you have the wiring that is trailer ready. Mine was a 2018 Outlander Limited. Thanks again Etrailer!

Steve



by:
2017 Mitsubishi Outlander

Solid hitch, all parts there and very easy to install. Took about 1.5 hrs by my self and a floor jack for support. Wiring harness easy to install as well with instructions provided.



by:

Hitch arrived ok,yet it's box didn't. Install was quick and the electrical hardware an ease to install.instructions and videos were extremely helpful. Thank you again.



by:

Bought a trailer hitch and wires. Easy to install. Used it many times in the past 10 months. I would buy again.

Thanks.



by:

Its supposed to plug and play. It dint work and instructions are worthless.

Etrailer Expert

Sierra K.

12/16/2021

This is a plug and play if you have a factory tow package. Do you know if you have one? The plug in location is supposed to be inside the vehicle on the passenger side, behind a panel near the rear seat. If you find out that you do not have factory wiring on your 2016 Mitsubishi Outlander, you would need Item # 118482.



by:

The vehicle harness for the trailer light hook up was very easy to install and it works perfect.



by:

I have ordered items 3 different times recently and all items were in stock and were shipped out promptly. I was able to track items and were delivered on schedule. Great service!!



by:
2017 Mitsubishi Outlander

Online store was very detailed, which helped me makr sure I was buying the correct plug setup. Delivery was right on point. Thank you so much !! I will be using your store all all my trailer needs .



by:

Easy installation was made easier with etrailer's installation video



by:
2015 Mitsubishi Outlander

Excellent product. very easy to install
Mitsubishi
outlander 2015!



by:

Easy to install. Video tutorial accurate. Excellent product !!



by:
2014 Mitsubishi Outlander

Easy instructions to follow, video was easy to follow, product works great for my SUV



by:

Arrived fast and everything was right could not ask for a better experience

Tony

6/4/2020

Still working great without any problems



by:

Good products and good service.



by:

Extremely easy to install. Worked perfe ctly.



by:
2018 Mitsubishi Outlander

Great price and fast free shipping. install my dealer and I have not used it. should be good



by:

Fits Perfect no issues I recommend it



by:

Easy to install. Fits the purpose



by:
2018 Mitsubishi Outlander

Perfect super easy to install took 20 min with clean up



by:

2nd purchase on time works great everything was there thanks guys



by:
2017 Mitsubishi Outlander

Very easy to install



by:
2016 Mitsubishi Outlander



by:
2019 Mitsubishi Outlander


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See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring

  • Will T-One Vehicle Wiring Harness # 118277 Fit a 2022 Mitsubishi Outlander With Factory Tow Package?
    The T-One Vehicle Wiring Harness # 118277 is only compatible for the 2016-2020 Mitsubishi Outlander with factory tow package. We do have the Curt T-Connector Vehicle Wiring Harness # C43WR which is designed for vehicles without a factory tow package but can also work on vehicles with the factory tow package but will not use the factory wiring. If you have the PHEV model you will need the Kit # C59496. If you wish to still use the factory tow package wiring you will need to order the components...
    view full answer...
  • Losing Power from Tailight Circuit Entering the Converter Box on a 2016 Mitsubishi Outlander
    If you are receiving 13.3 volts on the taillight circuit going into the converter box and only 6.6 volts coming out, then this would indeed indicate a bad converter box. It is not uncommon for converter boxes to fail over time as they are after all, just an electrical component. We have found that over the years, Tekonsha brand wiring products tend to have the greatest longevity and fewest problems. The license plate light you installed should not have had an effect on the converter box...
    view full answer...
  • Recommended Hitch And Wiring For A 2022 Mitsubishi Outlander
    The Tekonsha T-One Vehicle Wiring Harness # TK46VR designed for your 2022 Mitsubishi Outlander will be a separate part needed and will not be included with a hitch. However, this is a plug and play harness and will be a quick and easy install, though one wire will need to be run to the battery for needed power. If you have not decided upon a Hitch yet, the American made Curt Class III Hitch # C87WR available that is also designed specifically for your vehicle is highly recommended. This...
    view full answer...
  • Trailer Wiring Recommendation for 2018 Mitsubishi Outlander with Tow Package
    Since you have the factory tow package on your 2018 Mitsubishi Outlander the trailer wiring kit you'll want is the T-One part # 118277. I recommend this kit because it plugs right into the factory trailer wiring connector your vehicle has at the rear of it and also because it has our most reliable converter box of all of the kits we offer. I attached an install video for this kit for you to check out as well.
    view full answer...
  • Class III Hitch and Trailer Wiring Harness for 2018 Mitsubishi Outlander
    We can help you with a hitch and trailer wiring harness for your 2018 Mitsubishi Outlander. I suggest the 2-inch Class III Curt hitch # C13163. This hitch includes all required mounting hardware as shown in the linked video. Written instructions are linked for you too and these tell you exactly what tools you need to bolt on the hitch. No drilling is necessary. For wiring use kit # 118482 if you do NOT have the towing package; use part # 118277 if you DO have the tow package. Install...
    view full answer...
  • Recommended Wiring Harness Compatible with 2018 Mitsubishi Outlander PHEV
    The 2018 Mitsubishi Outlander PHEV does not have a custom compatible wiring harness from any of our manufacturers. I recommend the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT to capture your wiring signal without impacting the connections on your vehicle. I've attached a video to assist. This wiring harness is an almost universal fit and I confirmed with my contact at Tekonsha it would be the best option for your vehicle. At...
    view full answer...
  • Which Trailer Wiring Harness for 2018 Mitsubishi Outlander
    As long as your Outlander isn't the plug in hybrid (PHEV), I'd recommend the # 118482 for vehicles without the factory tow package or # 118277 for vehicles with the tow package. If your vehicle has the tow package, it will have the tow package electrical connector located behind the driver's side bulkhead in the cargo area, to the rear of the wheel well as shown in the provided photo. You could also call your Mitsubishi dealer with the VIN, and they should be able to tell you how the vehicle...
    view full answer...
    Image 1 for
  • Installation Instructions for Trailer Wiring Harnesses for a 2018 Mitsubishi Outlander
    We don't have a video showing installation of Curt trailer wiring harness # C56296 for the 2018 Mitsubishi Outlander but I have linked the installation instructions. It will install basically the same way as # 118277 which we do have a video for and I have linked it. The video is on a 2016 but the install process will be the same for a 2018. Both of these wiring harnesses are for models that came with the factory tow package. The easiest way to determine if your Outlander has the factory...
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Randy B
Test Fit:
Randy B
Employee Robert C
Test Fit:
Robert C
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Alexander C
Written by:
Alexander C
Employee Jonathan Y
Video by:
Jonathan Y

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