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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. No Converter
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # 118384
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Retail:$66.95
Our Price: $40.66
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Custom Fit Vehicle Wiring

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Tekonsha Custom Fit Vehicle Wiring - 118384
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Quickly and easily install a 4-way trailer connector on your vehicle. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118384 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 (365)
  • Q & A (0)
  • Photos
  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118384

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • No Converter
  • Tekonsha

Quickly and easily install a 4-way trailer connector on your vehicle. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Retains functionality of factory-installed 7-way, RV-style connector (if present)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind rear bumper
    • 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

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the rear bumper. If you have a factory-installed 7-way, blade-style connector, the T-One will plug in between the 7-way and the OEM socket.


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.



118384 Tow Ready T-1 T-Connector - 4 Wire

Installation Details 118384 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 - 118384

Average Customer Rating:  4.8 out of 5 stars   (365 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat.

by:

Slow start to a good impression but everything worked out.
1. It started with a delivery delay; I live two hours from the manufacturer but it took 3 weeks to get me my harness. When the error was found they over-nighted the harness to me.
2. The wiring in the harness was loose and would lose connection, disabling the lights. Pushing a connector back in to place, crimping it down and wrapping it in electrical tape solved that issue.
That was a month into owning the harness. It's been a year now and I've had no problems. I'm pleased with the compatibility and ease of which it took to install.



by:

Perrrrfect literally Less than 10 minutes for a complete install. Perfect fit



by:
2013 Toyota Tacoma

Does not fit vehicle as described on web age. Charge for shipping to return item. As the problem is their poor match up of product and vehicles the charge for returning items should be paid by them. Basically false advertising! DO NOT TRUSS etrailer. Go somewhere else.


Comments
Some vehicles have a factory connector that will not come apart for this product to plug into, so the connector ends have to be cut off and hardwired together. We mention this in the tech tips when going through the fitguide.
-- Etrailer Expert Sierra K - 05/11/2022

by:
2016 Jeep Grand Cherokee

Purchased this hitch for my new 2016 Jeep Grand Cherokee Laredo online after being quoted a $700 installation price at my local Chrysler Dealership. After doing some online searching and reading multiple reviews I decided to give these folks a try. My husband and I watched a very detailed video explaining 3 different hitch options for my Jeep and quickly decided for the price it was worth giving it a try. From opening box to install was less than 20 minutes that included connecting trailer light kit that I purchased extra $$.$$. You can barely see it under my JEEP. I'm very pleased and can't hardly wait to use it. Thanks again etrailer.com you helped me prove my to my husband that it would work and saved me $600!



by:

On my part I ordered the wrong wiring harness, was returned and replaced with the one I want with ease. Very happy with purchase



by:
2013 GMC Sierra

Have been looking for a T-connector for my trailer lights for two years. Truck has a seven pin connector built-in. Wanted my GMC emblem to light up when the breaks are applied. Was getting ready to cut and splice wires when I looked on the internet and learned about etrailer.com. Found the T-connector I needed. Took 5 days to arrive after ordering, and 5 minutes to install. Works great !



by:

Like this wiring harness so there’s no cutting no splicing everything stays OEM and it cuts installation time



by:
2009 Jeep Liberty

The hitch is very good, fit like a glove, BUT, the electrical connecter doesn't fit anything. The fine print on the directions says for a factory wired vehicle to add on a 4 pin connecter. My 09 Jeep Liberty was not factory wired so I'm out the money I paid for it. Thanks.


Comments
If you do not have a factory 7 way you will need this kit first: Item # 118554
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
$63.94
.
-- Etrailer Expert Sierra K - 10/06/2021

by:

This does not fit my vehicle 2009 Toyota Tacoma. But your site said it did


Comments
This Tekonsha wiring harness does fit the 2009 Toyota Tacoma with a towing package. The plug that you plug the wiring harness into is located underneath the bumper on the drivers side of the Tacoma. If your Tacoma does not have a towing package, you will need part # 118496
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
$40.66
which is designed for a Tacoma without the towing package.
-- Etrailer Expert Heather A - 03/08/2022

by:

Worked as expected. 3,000 miles on the trailer and no problem.


Comments
The wiring harness fit perfectly and the installation was a breeze. I haven had any problems at all with this product and I reccomend it to anyone.
Casey H - 02/22/2022

by:

TRAILER WIRING HARNESS WENT TOGETHER REAL GOOD. IT ONLY TOOK A VERY LITTLE TIME TO INSTALL. THIS MADE INSTALLING MY LED BRAKE LIGHT KIT VERY EASY.



by:

Works just how we wanted it to! Pulled out camper great



by:
2016 Jeep Grand Cherokee

Simple product, plug and play.



by:

Awesome products and very reasonable pr ices!



by:
Dodge Ram Pickup

Just exactly what I was looking for and needing. It should make hooking up lights on the back of my Ram real easy. By the way, I am Larry. My wife placed an order for me a couple of years ago but only one. Thanks for the prompt service and I really appreciate it.



by:

Search hi and low to find what I needed or even for someone who even understood what I needed. I had no luck until I search on etrailer.com. They had exactly what I was looking for. Ordering was simple and delivery was quick. They even check in with me before durning and after shipping. I love this site. I'll definitely shop here first next time.



by:

Easy to use web site - got the correct part - I have already ordered more parts - this time for my trailer!!! I will always choose etrailer for my parts



by:
2014 Jeep Grand Cherokee

Bought a trailer hitch, and wiring harness for my 2014 Jeep Grand Cherokee. etrailer was fantastic, right on the money with the videos and it was very helpful in choosing the right hitch. Very easy to install.



by:
2016 Jeep Grand Cherokee

I purchased a trailer hitch (C13182) and wiring adaptor (T-One 118384) for my 2016 Grand Cherokee. Received it within a few days and fit was perfect! Only took all of ten minutes to install with the help of my 5 year old. Thank You!



by:
2015 Jeep Grand Cherokee

Very easy to install by yourself. Only took about 10 minutes. The wiring harness plugs right in as well. Only downside is that the trailer lights do not work. I have to go to a dealer and get the circuit activated. This has been stated and is no fault to etrailer. Excellent products. Fast shipping.



by:
2012 Jeep Grand Cherokee

Perfect fit on my 2012 Jeep Grand Cherokee. Hitch and wiring harness installed in 20 minutes. This is my fifth hitch and wiring harness purchased thru etrailer and have yet to be dissapointed. Both the video and written instructions were spot on, the installation of the wiring harness couldn't be easier!


Comments
Just did this install on a 2011 Jeep Grand Cherokee everything is just like the video. But the only thing that worked was tail lights. No turn or brake lights. I could not find any fuse or relays bad or missing. Did I miss something?
-- comment by: Glenn H - 09/21/2012

Part # 118384 is designed for Grand Cherokees with a factory tow package. Without the factory tow package, not all functions will work. In order to make it function, youll need to head to your dealer and have them re-flash either the Body Control Module BCM or Power Control Module PCM to fully activate that port.The other option is to use a harness designed for Grand Cherokees that dont have factory tow packages like part # 118425.

-- Etrailer Expert Patrick B - 9/21/2012


by:

Excellent hitch! Installed in 10 minutes. Wire harness was tapped to hitch so it could not fall out of box.Quick shipping great website!



by:
2022 Ram 1500

High quality product that does exactly what it's designed to do. Installation was quick and easy. Would order from etrailer again without hesitation



by:

Website very easy to operate and fubd exactly the right part to fit my truck/trailer !!! Videos were very helpful even telling me what sockets and wrenches I needed to complete install by myself and Im a carpenter not really mechanically gifted. Will definitely use etrailer.com again without hesitation!!



by:

EASY INSTALL, NO ISSUES SINCE INSTALLED


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