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

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

$41.59
Retail:$105.80
You Save: 61%
Custom Fit Vehicle Wiring

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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. Circuit-protected converter guards against shorts. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118431 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.
  • All Info
  • Reviews (87)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring

  • 4 Flat
  • Trailer Hitch Wiring
  • No Tow Package
  • Vehicle End Connector
  • Tekonsha
  • Plug-In
  • Converter
  • Plug and Lead
  • 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. Circuit-protected converter guards against shorts.


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 behind tail lights
    • Plug in T-connector
  • Includes circuit-protected tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Provides protection against electrical shorts and overloads
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 2.1 amps per circuit
    • Tail lights: 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 tail light assemblies to access this harness.


T-One Connection Location Points Behind Tail Lights

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.


Circuit-Protected Tail Light Converter

A tail light converter 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. The tail light converter combines 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.


This converter safeguards itself and your vehicle against possible electrical shorts and overloads with integrated short circuit protection. Just install the connector as indicated and rest assured that the wiring system of your vehicle will remain feedback-free.



118431 Tow Ready T-1 T-Connector - 4 Wire

Item # 118431

Installation Details 118431 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Ratings & Reviews

4.7

87 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 - no cutting, splicing or tapping required. Circuit-protected converter guards against shorts.

by:

The video was a big help.



by:
2012 Kia Soul

Fit and worked perfectly. Easy install.



by:

Very easy to install.



by:

great product--easy installation!!!



by:
2011 Kia Soul

Easy, clean install on 2011 Kia Soul.



by:

Excellent product and excellent service.



by:

Slick product. Super easy installation.



by:
2012 Kia Soul

good service,shipping&great product



by:

I had no problem with this harness. Very easy install.!!



by:

Product installed and worked exactly as advertised. Very pleased!



by:
2011 Kia Soul

Item 118431 installed hitch in 50 min easy and Im 71 years old .
Great service.



by:
2011 Kia Soul

Delivery was prompt.....installed in 20 minutes.....works great!!!!!!



by:

Perfect. Thats all I can say. Its cheap, quick and very easy.



by:
2011 Kia Soul

Worked perfectly, easy to follow instructions.



by:
Kia Soul

Speedy delivery and the install was pretty much just plug it in and I was done.



by:
2012 Kia Soul

Received the wiring harness is record time!! Great service and Helpful directions/Videos!!!!



by:

Wiring was affordable and easy to install. Anyone can do this! Thanks!



by:

this wiring harness snapped right in it took about 15 min. to install it . GREAT



by:
2010 Kia Soul

longer wire between taillights would be nice. has to be routed just right to reach. rest of install was easy.



by:
2012 Kia Soul

This product fit perfectly/ It installed in about 20 minutes with the most rudimentary of tools.
Highly recommend this product.



by:

Product arrived AMAZINGLY fast... price was just right... this was my first order with eTrailer and I am very impressed and will definately be book-marking their site.

Thank you eTrailer :)

Paul



by:

Products (hitch and wiring harness) installed quickly and without any problems. Etrailer is a class company. I recommended them to a friend and he is ordering his hitch from etrailer. Keep up the good work.



by:

I am so impressed with my tow package and the wiring harness !!!! It was easy to understand the installation instructions. I'd recommend it to anyone GREAT PRIDUCT !!!!!!



by:
2012 Kia Soul

This is a great product and easy to install. I thought there would be a cheaper version though, but overall it is Great!



by:

Very happy with this product, the installation videos were a huge help and helped everything go smoothly. Took about 15 minutes from start to finish to install all the wiring.


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Show More Reviews

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

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    Based on your manual indicating 7" brakes it is probably a 2,000 lb axle. That should be a 4-bolt brake flange on the axle as well. Try checking your axle tag to see if you can verify this. The capacity may be listed, or it can be found with the serial number. You will need the following parts to add brakes: -Dexter Trailer Hub and Drum Assembly for 2,000-lb Axles - 7" - 5 on 4-1/2 # 8-257-5UC3 -Dexter Electric Trailer Brake Kit - 7" - Left and Right Hand Assemblies - - 2,000- to 2,200-lbs...
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  • Availability of Trailer Wiring Harness for 2012 Kia Soul w/ LED Taillights
    We do indeed have a trailer taillight wiring harness that's compatible with a 2012 Kia Soul with the LED taillights. You'd want to use part # 118637. The wiring harness would plug inline with the factory wiring connection at the taillight assemblies, and one wire would need to be ran to the positive battery terminal. The # 118431 wiring harness you mentioned is only a fit for Soul models without the LED taillights. I'll link you to some FAQ articles that you might find helpful.
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  • Do the 2013 and 2014 Kia Soul Use the Same Draw-Tite Trailer Hitch, Wiring Harness
    The 2013 and 2014 Kia Soul will not use the same model of Draw-Tite trailer hitch. The 2013 Kia Soul will use part # 24839. The 2014 Kia Soul will use part # 24915. I have included installation instructions for both parts for you to check out. The recommended wiring harness, however, is the same for both vehicles. That harness is part # 118431. See the installation instructions for this wiring harness linked elsewhere on the page. I have also included a link to a video of Draw-Tite trailer...
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  • Trailer Wiring Availability for a 2013 Kia Soul
    I was able to find a trailer wiring harness that will work on your 2013 Kia Soul, but the Tow Ready Harness # 118431 that you referenced has not been carried over to the 2013 models. Curt recommends the Curt Circuit Protected Powered Converter # C56496. This is a kit that will require you to hardwire to the wiring of your Soul, but it will work well for you. I attached installation instructions and an install video for you to check out.
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  • Availability of Trailer Wiring Harness for 2013 Kia Forte Koup
    I spoke with my representative at Tow Ready, who tells me that because the Forte Koup is not often used as a tow vehicle, a plug-and-play trailer wiring harness like the # 118431 you mentioned is not offered. For your Forte Koup, a universal fit hardwired harness like the # 119178KIT is recommended. The 118431 fits the 2007-2010 Kia Rondo or the 2010-2012 Kia Soul, but not your Forte Koup.
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  • Trailer Wiring Harness for a 2012 Kia Soul Luxury with LED Tail Lights
    I spoke with my contact at Tow Ready and for a 2012 Kia Soul with LED tail lights, you will need to use wiring harness # 118637. This harness will need to be hardwired into the vehicle using the included circuit tester to find the appropriate wires on the vehicle to tap into. It also requires a direct connection to the vehicle battery to power the trailer lights. I have included a link to the installation instructions for you to view.
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  • Hidden Hitch Pilot Brake Controller # 80550 Installation in 2012 Kia Rondo
    To install a brake controller in your 2012 Kia Rondo you will need a Brake Controller Install Kit # ETBC7. The Hidden Hitch Pilot Brake Controller # 80550 will wire into the vehicle using this kit. Your Rondo needs to have a working 4-pole flat trailer connector in place; if it does not already have one you can use # 118431 from TowReady, which is a simple plug-and-play installation. This harness connects at your taillight assemblies. I have linked the written installation instructions...
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  • What Hitch is Recommended for the 2010 Kia Soul to Tow a Boat Trailer
    The three 1-1/4-inch hitches we offer for the 2010 Kia Soul are all Class I-rated and have a tongue weight capacity of 200-lbs. These light-duty hitches are ideal for use with accessory items like bike carriers or for light towing. The link provided will take you to our product page for all three hitches. All require temporary lowering of the exhaust for installation. Your Soul owners manual will indicate if it is rated by the manufacturer for towing a trailer; if so the manual will indicate...
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  • Trailer Wiring Harness Recommendation for a 2011 Kia Soul
    Yes, the Tow Ready Custom Fit Vehicle Wiring # 118431 that you referenced is confirmed to fit your 2011 Kia Soul so it would work on your vehicle. I attached an install video for you to check out. For a hitch I would recommend the Draw-Tite part # 24839. Aside from that all you would need is a ball mount and hitch ball like part # 19256.
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  • Trailer Hitch and Wiring Recommendations for a 2010 to 2012 Kia Soul
    First, you will want to consult the owners manual of your Kia Soul to determine if it can be used for towing. Some vehicles can have a trailer hitch, but only use it with something like a bike rack. The owners manual should have the specifics on the capabilities of your vehicle. On a 2010 to 2012 Kia Soul, there are a couple trailer hitch options. If you determine it can be used for towing I recommend the Draw-Tite #24839. It comes with a hitch pin, and clip. You would need to add a ball...
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  • Does Trailer Wiring that Fits 2007 Kia Rondo Require Additional Converter Box
    The trailer wiring harnesses that fit your 2007 Kia Rondo like the Tekonsha part # 118431 do not require an additional converter box as the only box needed comes with the kit. This would work well with the Curt hitch part # C11031 that fits your 2007 Kia Rondo as well.
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  • Troubleshooting Tekonsha T-One Harness Causing Tail Light on 2015 Kia Soul to Go Out
    The Tekonsha T-One Vehicle Wiring Harness # 118431 that you mentioned is only a confirmed fit for the 2015 Kia Soul if it does not feature LED tail lights. I first just recommend making sure you don't have LED lights on your Soul which may cause issues like what you're describing with this particular harness plugged in. If you do have the LEDs then the correct trailer harness is actually the Tekonsha # 118637. If you don't have LED lights I recommend making sure the T-connectors are fully...
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  • Ground Clearance with Draw-Tite Trailer Hitch Installed on a 2012 Kia Soul
    On the 2012 Kia Soul, the Draw-Tite trailer hitch # 24839, measures 9-1/2 inches from the top of the receiver opening to the ground. From the bottom of the receiver it would be 8 inches. I have included a video showing a typical installation on a 2012 Kia Soul that shows this measurement. If you plan on doing some towing you will need ball mount # 3593, hitch pin and clip # PC2, a 1-7/8 inch ball # 19256 or a 2 inch ball # 19258. For trailer wiring you can use # 118431 or, if you have...
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  • Recommended Hitch and Related Items for 2009 Kia Rondo V6 Towing Camper Trailer
    Trailer hitch fits for the 2007, 2008 and 2009 model years of the Kia Rondo happen to be the same. Any of these model years can be fitted with a light-duty 1-1/4-inch Class I hitch and we have the available product # C11031 from Curt. All you need to add is the hitch ball, such as 1-7/8-inch # 19256 or 2-inch # 19258, along with ball mount # 3594. Choose the ball that matches your trailer's coupler size. The hitch will install using the included hardware and basic hand tools. The only...
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  • Trailer Hitch and Wiring for a 2008 Kia Rondo
    Yes, you can tow a trailer with your 2008 Kia Rondo. I found a copy of the owner's manual online and found the following towing capacities. First, if the trailer does NOT have brakes models with the 2.4 or 2.7 liter motor can tow 1,000 pounds. If the trailer does have brakes then the 2.4 can tow 1,500 pounds and the 2.7 can tow 2,000 pounds. The tongue weight capacity for the 2.4 liter is 150 pounds regardless of whether or not the trailer has brakes. And for the 2.7 liter it is 200 pounds. I...
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  • Wiring Harness With Easy Install For 2009 Kia Rondo
    There has been some issues with the green wire being too short to install the Curt T-Connector Vehicle Wiring Harness part # C56222 on the Kia Soul without splicing in extra wire. I do not believe you will have that issue with the Rondo because we have not had any complaints at all about the Rondo and the Curt harness. However, I recommend to go with the Tekonsha brand harness part # 118431 for the 2009 Kia Rondo because the Tekonsha brand is more reliable and tends to last a bit longer....
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  • Trailer Running Lights Only Working on Passenger Side with a Kia Soul
    First, I am showing wiring harness # 118431 for a 2010 Kia Soul, so hopefully that is the one you are using. This sounds like a ground problem on the trailer. The running light circuit is on a different wire than the stop and turn lights, so it makes sense that those are working correctly. On the trailer, take a look at the offending light. Trailer lights usually ground through the mounting studs, unless there is an obvious ground wire. While back there, check that the bulb is intact. In...
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  • How to Install Tekonsha 118637 Trailer Wiring Harness on 2014 Kia Soul
    The Tekonsha # 118637 trailer wiring harness is a confimed fit for your 2014 Kia Soul. I've linked you to both the installation instructions as well as to a video showing the harness being installed on a 2014 Soul like yours.
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  • Compatibility of Curt Class I Receiver Part # 11110 with 2011 KIA Soul
    All hitches we offer for your 2011 Soul, the Curt # C11110 and the Draw-Tite # 24839, are compatible with all models of the vehicle. All three hitches are pretty much identical in appearance, weight capacity and installation procedure. If you're only needing the hitch as an attachment point for a bike rack or cargo carrier, I'd recommend the Draw-Tite # 24839. If you are planning on using your receiver to tow a small trailer, you will need the wiring harness, part # 118431 and either...
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  • Installing a Brake Controller, 7-Way and 4-Way Trailer Connector on a 2010 Kia Soul
    If the trailer you plan to tow with your 2010 Kia Soul has a 7-Way connector then it probably has electric brakes or needs 12 volt power for trailer accessories. If it has electric brakes, that would mean you would need a brake controller to utilize all the functions of the 7-Way. To install a 7-Way on the Soul, you would first need to install a 4-Way. The 4-Way for your Soul is the Tow Ready Custom Fit Vehicle Wiring, # 118431. I have included a link to a video installation and instructions...
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  • Recommended Hitch For 2010 Kia Soul Towing an Aluminum Boat
    The hitches that are available for your 2010 Kia Soul are all Class I 1-1/4 inch hitches with a 200-lb tongue weight capacity and a 2,000-lb towing weight capacity. You will want to check your owners manual or with the Kia dealer for the towing capacity of your Kia Soul. If it is lower than the 2,000-lb capacity of the hitch you will need to go by that lower number as the maximum weight capacity you can tow. You will want your aluminum boat and trailer, loaded with your cargo, to be...
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  • Will the Curt Hitch # C11031 Fit on a 2010 Kia Rondo with V6 Engine
    Yes, the Curt Trailer Hitch, item # C11031, will fit both the 4 and 6 cylinder models of the 2010 Kia Rondo, so it will fit. You may also be interested in the following items to complete your Class I towing setup. T-One Trailer Wiring Harness, item # 118431 Curt Drawbar, item # C45023 1-7/8 inch hitch ball, item # 19256 2 inch hitch ball, item # 19258 Hitch Lock, item # e98879 Pin and Clip, item # PC2
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Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Isabelle B
Updated by:
Isabelle B
Employee Andy C
Installed by:
Andy C

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