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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
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2012 Dodge Ram Pickup
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Tekonsha

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

Part Number: 118316
183 Reviews | 110 Questions
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 Custom Fit Vehicle Wiring
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2012 Dodge Ram Pickup

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tekonsha custom fit vehicle wiring 4 flat plug-in t-one harness with 4-pole trailer connector
tekonsha custom fit vehicle wiring trailer hitch 4 flat t-one harness with 4-pole connector
tekonsha custom fit vehicle wiring end connector 4 flat 118316
tekonsha custom fit vehicle wiring trailer hitch 4 flat 118316

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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 existing wiring - no cutting, splicing or tapping required. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118316 or order online at etrailer.com. Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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Tekonsha Custom Fit Vehicle Wiring - 118316

  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • Tekonsha
  • Plug and Lead
  • No Converter
  • Visible

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 - no cutting, splicing or tapping required.


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 - no cutting or splicing of wires
    • Locate connection points along frame rail
    • Plug in T-connector
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

T-One Connection Location Points

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located beneath your vehicle, along the driver's-side frame rail.


Once installation is complete, the 4-way flat connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.


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.



118316 Tow Ready T-1 T-Connector - 4 Wire

Installation Details 118316 Installation instructions

This Product Fits The Following Vehicles



California residents: click here




Customers Who Purchased This Custom Fit Vehicle Wiring Also Bought...



Customer Satisfaction Score:

Ratings & Reviews

4.9

183 reviews
5 Stars
(169)
4 Stars
(10)
3 Stars
(1)
2 Stars
(1)
1 Star
(2)
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 - no cutting, splicing or tapping required.

by:

I wish all wiring jobs were that easy great product.



by:
1995 Ford F-150

This is a super easy install and an overall great product!



by:

I received this AMAZINGLY fast and it was everything and more I thought it would be. Took maybe 2 minutes to install (once I got under the truck). What a simple fix this provided!



by:
1991 Ford F-150, F-250, F-350

Great product. Couldn't be easier to install and was easy to find on this efficient website. Would definitely recommend this site to others.



by:

super easygreat item, makes the electrical a 5 min job.



by:

Excellent product. Very easy to install. E-Trailer products are top notch.



by:
1988 Ford F-150, F-250, F-350

Just what I wanted fast shipping would buy again from etrailer



by:

These items are just what I needed for my trailer. And I was amazed at your web site. Everything is arranged in a logical manner with all the info that one would need. The thing that impressed me most was the videos. You not only supply the product but you show how to install it.
Great job, thanks.
Howard



by:
1993 Ford F-250 and F-350

The wiring harness fit my truck's wiring perfectly. Great product and fast shipping.



by:
1989 Ford F-150

I bought the harness for an '89 F150. It was shipped quickly. It took about two minutes to install, including tying it to the frame, and it's a tight, weather-proof connection. My other option was $100 to a trailer store to splice into my wires. There is no comparison. I was really pleased.



by:

Product is such a time saver, i have installed wiring harnesses the old hard way by locating, testing the proper wire for signal.........such time consumer, this is easy awesome love it.
note also, most other places don't carry this for older vehicles
e-traile did and i'm grateful.



by:
Ford

A perfect fit as guaranteed. After washing the years of crud off the factory harness of my 1994 Ford Supercab the plug-in adapter fit perfectly into place and by boat trailer lights worked beautifully.



by:

I've had one of these for many years. Last month the end dropped down to low while not hauling a trailer and ground half of one of the sockets away. Swapped out the new one for the damaged one in minutes.



by:

Thanks again for having what I needed and for the fast processing. Had to wait for a day of rain but, had it in the following day. Plugged it in and tested it. Good to go. Now I can pull a trailer.
You are the best!

Thomas profile picture

Thomas

10/15/2024

etrailer was the only place that had it. Installation was easy. It fit as it should and works great.



by:
1993 Ford F-150

Wow. Works as advertised. Easy. Trailer lights work and took less than 5 minutes

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by:
1994 Ford F-150

Website was best i have seen, great detail, product was easy-breezey to install, only trouble was cleaning dirt from under truck to keep out of my eyes, should of worn safety glasses

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by:
1996 Ford F-150

I installed the trailer lights connecter adapter into the wiring harness at the rear of my 1996 Ford F-150 today. The wires were exactly were the instructions said they would be located. With some effort after engaging the relief clip I was able to pull apart the wiring harness. Installing the trailer light connecter adapter went easily. I only had to pull lose one wiring harness holder from the frame to give more slack in the wiring harness to make room for adapter to fit. After installation I tested the lights and everything (turns signals, tail lights and brake lights) all worked properly. The quality of the adapter looks great just like it was a factory original part. I expect to have properly functioning trailer lights for a long time now. Thanks.

Keith M. profile picture

Keith M.

6/22/2020

Easy and simple installation. I am very pleased with using trailer wiring harness.



by:
1994 Ford F-150

This product is just what i needed to connect to my trailer harness. No cutting or splicing, so you get no corrosion. Just unplug truck wire harness plug in this in and you are ready to connect trailer lights. great product . couldn't find this in stores either. etrailer.com saved me lots of time. easy ordering and quick shipping only a couple days and I had the product. Thank You.

Daniel B. profile picture

Daniel B.

6/18/2017

Im having trouble with the ground wire trailer lights intermitently work or dont work or some work and not others after investigating found the insulation on the ground wire coming from the product i purchased had come out of the plug at the trailer connection causing the wire to fray and corrode and a few strands of the wire have broke. i have had to add a seperate ground wire to help .

Rachael H. profile picture
Etrailer Expert

Rachael H.

6/19/2017

Thanks for the follow up. Grounding issues are usually the main problem with trailer lights intermittently working. Your trouble shooting and solution is exactly what we would recommend. If you need additional information here are some help articles that assist in identifying and solving wiring issues.

Helpful Links

faq-4-5-way-troubleshooting.aspx

faq-wiring.aspx



by:

The products I ordered were received timely, installed easily, and were made of quality material. I look forward to years of quality service from these items. The service staff members at etrailer are kind, courteous, knowledgeable. I would highly recommend etrailer for your trailering needs. The only recommendation for improvement would be to tweek your on-line order tracking system. I received the items before I could track their whereabouts through the on-line order tracking system. Great site for quick reliable service!

Terry D. profile picture

Terry D.

4/15/2015

The product worked perfect for me during the period I owned the vehicle. Sold the vehicle a few months ago.



by:
1990 Ford F-150, F-250, F-350

A great way to update a trailer plug. No more tapped wire connections.
My taillights didn't work anymore and now they do.
I will recommend this to others.

Gigi profile picture

Gigi

4/8/2019

It works great and I recommend it to any of my friends that pull trailers.



by:

Worked very well for my setup. Everything pre wired made the install alot easier. Thanks



by:

The gentleman who helped went the extra mile to help me. His comment to customer satisfaction was second to none. Great job!!! Service as a whole was great as well.



by:

Fit perfectly for my 1995 f150 single cab rwd long bed 4.9l, after 1 year still holding on strong and would highly recommend

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by:
1994 Ford F-150

Product works great and installed perfectly just as the instructions said it would. Install only took about 5 minutes and was super simple. I didn't need any tools except for a Flathead screwdriver in order to release the old crappy clips that were on my truck wiring harness. My truck didn't have a trailer light hookup when I bought it so this item worked perfectly for what I needed and was way easier than splicing wires and making my own. Defiantly worth it and would buy again if I buy another truck and it doesn't have trailer lights.



by:
1993 Ford F-150

Perfect fit for my 1993 Ford F-150. Easily installed with no hassle. Works perfect and solved the trailer light issue.

James E. profile picture

James E.

2/16/2018

Still working perfectly. No issues whatsoever!!!!


25
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Robert G
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Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
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Employee Zack K
Video Edited:
Zack K
Employee Andrew K
Video Edited:
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Employee Nicholas E
Test Fit:
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Employee Laura H
Updated by:
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Employee Wilson B
Updated by:
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Employee Alexander C
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Employee Isabelle B
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Employee Cole B
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