bing tracking image
  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. 4 Flat
  5. Trailer Hitch Wiring
  6. Converter
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # 118453
Retail:$108.81
Our Price: $44.63
You Save: 59%
Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Add to cart
In Stock
Tekonsha Trailer Hitch Wiring - 118453
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Need help with installation?
Locate installers near me
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. Includes tail light converter. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118453 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 (52)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring - 118453

  • Custom Fit
  • 4 Flat
  • Trailer Hitch Wiring
  • Tekonsha
  • 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 - no cutting, splicing or tapping required. Includes tail light converter.


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 in trunk
    • Plug in T-connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • 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: 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 inside your trunk, behind the driver's-side tail light. You will need to remove some interior trim or carpeting to access the harness.


Once installation is complete, the 4-way flat connector will be stowed within your trunk.


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.


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.



118453 Tow Ready T-1 T-Connector - 4 Wire

Installation Details 118453 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118453

Average Customer Rating:  4.9 out of 5 stars   (52 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 - no cutting, splicing or tapping required. Includes tail light converter.

by:

Ordering was easy. Hitch is great and fit perfect. Instructions were good, but the instructions for triming the muffler heat shield were not correctly identified (not a huge deal, I was able to I.D. the correct one bny the photo), and lighting module was easy to install and works great. I have been wanting a hitch for my vehicle for quite some time and finally pulled the trigger with eTrailer.com and glad I did.



by:
2015 Kia Optima

Fast delivery easy installation fits pe rfect



by:
Kia

We purchased this wiring harness adapter as a companion to the trailer hitch we bought for our Kia. It allows insertion of the trailer plug adapter between the existing wiring harness and rear lights of our car without the need to cut and splice the factory wiring.
We keep it in the trunk when not in use. When in use we run it out of the trunk, being careful to keep away from the trunk latch. The lower trunk gasket cushions the wire and protects it from being cut or pinched.

Kirk S.

8/16/2020

Does what I bought it to do. Liked that it was plug and play.



by:

Works as intended. Very easy plug-n-play installation.



by:

Perfect and easy to work with. Fantastic customer service to go along with my purchase.



by:

Easy ordering. Came quickly. Plug and play great!



by:

A great product. Installation couldn't have been any easier or more simple. I just wish I hadn't wasted my money having U-Haul attempt an installation of their product. I will definitely be doing more shopping at e trailer.

John B.

5/18/2014

Still working great. Not a single problem so far - and I dont expect any either! Will definitely shop etrailer again.



by:

Just what I needed. Simple install



by:
2015 Kia Optima

Iinstalled this on my 2015 Kia Optima and the installation was quick and easy with the directions provided and the how to video available from etrailer. Good job etrailer



by:

Fantastic wiring harness and a excellent, step by step, simple to follow video too make the install even easier. Very helpful staff that is available to help if you have any difficulties. etrailer can't be beat!



by:

These wiring harnesses are easy to install and work great! The T connectors clip directly into the brake lights and then the vehicle wiring clips back into the other side. No wire splices to be make!



by:

The installation was easy and the installation instructions were very accurate.

This was a simple addition to the car's factory wiring without any need to cut or splice. Simply disconnect and reconnect.

Great product.



by:

Worked out great...both the hitch and the wiring harness were delivered on time and installed with no issues. Job well done!

Thanks



by:

Easy install and works great! Highly recommend this harness for this size vehicle.



by:

Bought this product about a year ago now. Install was very easy, connectors all perfect, no splicing. All in all, might have taken me 5 minutes to install and test out. Very happy!!



by:

Nice quality, easy install, great on line directions and light kit, just plug and done



by:
2017 Kia Optima

Works perfectly, nicely built. Needs another foot of wiring from the left turn signal ans another foot on the ground wire. Couldn't reach a grounding post on my '17 Optima. Easy fix though, tested perfectly



by:

I just installed the 118453 T-one Wiring Harness and the car tail lights work. I have not hooked it up to a trailer yet, so we'll see.



by:

fast shipping,easy installation .

Patricia R.

6/21/2020

great



by:
2008 Kia Amanti

This wiring harness was a great purchase.
It fits perfect on my 08 Kia Amanti and your fast delivery was
so much appreciated.

W.Whitman



by:
2016 Kia Optima

Wiring harness worked as advertised. Completely satisfied



by:
2016 Kia Optima

Super easy to install on my 2016 Kia Optima. Literally plug and play. Installation took 10 minutes. The instructional videos on the website are extremely helpful. Thanks etrailer!



by:

Great design. No cutting, splicing or soldering. I haven't tested correct lighting with a trailer yet.



by:

Maybe, your instructions should include the following phrase...repeat step "B" on the passenger side for the T-Connector.
Just a suggestion.
Thanks for the shipping upgrade.
Jb



by:

excellent wiring kit, works great,would recommend.


25
52
Show More Reviews

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

  • Trailer Hitch Fit for 2016 Kia Optima
    Although we do offer a hitch fit for your vehicle, the # 24796 hitch is a fit for a 2007-2021 Nissan Altima or 2009-2021 Nissan Maxima so it won't work for your Kia Optima. For a 2016 Optima, I'd recommend the Curt Class I hitch, part # C11402. If you'll be using the hitch for light duty towing, you'll also need a trailer wiring harness like part # 118453, a ball mount like # C45521, a # PC2 hitch pin and # A-80 for a 1-7/8 or # A-82 for a 2 inch trailer ball. I've linked to some installation...
    view full answer...
  • Trailer Wiring Harness for a 2013 Kia Optima SX
    I checked with Tow Ready and they do list wiring harness # 118453 as a fit for all models of the 2013 Kia Optima. So you can use this harness on your SX model. I have linked a video showing how it installs.
    view full answer...
  • Parts Needed To Tow A Jet Ski Trailer With a 2014 Kia Optima Hybrid
    I recommend using the Curt Trailer Hitch Receiver # C11025 on your 2014 Kia Optima Hybrid. Do be aware that your owners manual does have conflicting information that says it is not recommended for use with trailer towing. But it also states to make sure you account for tongue weight for total vehicle weight when trailer towing. If you have any vehicle warranty or concerns about this please consult your vehicle warranty or your Kia dealer. Curt recommends using either the 1-7/8" Euro Drawbar...
    view full answer...
  • Will Curt Hitch and Tekonsha Wiring Fit 2012 Kia Optima
    Yes, both the Curt # C11025 and Tekonsha # 118453 will fit your 2012 Kia Optima. If you're planning on towing you will also need a ball mount like # 36065 along with # 19256 for a 1-7/8" or # 19258 for a 2" ball. I have attached some installation videos below for your reference.
    view full answer...
  • Where Does 4-Way of Harness # 118453 Store When Not In Use
    The 4-way of the trailer wiring harness part # 118453 would get stored in the trunk area of your 2012 Kia Optima when not in use. When you needed it you would pull the 4-way out and close the trunk over the wires. The thick rubber seal of the trunk prevents the wiring from getting damaged. Having it store in the trunk also prevents the possibility of the wiring getting damaged by debris in the road or corrosion from water/weather.
    view full answer...
  • Recommended Trailer Hitch for 2017 Kia Optima Hybrid to Use for Bike Rack or Light Trailer
    There are just a couple trailer hitches available that are confirmed to fit your 2017 Kia Optima Hybrid, both of which will feature an exposed crosstube that sits below the rear bumper. Between the two available options, I recommend the Curt Class I Trailer Hitch # C11402. This is because it has a round crosstube design that's a bit more pleasing to the eye when compared to the square bar on the Draw-Tite # 24965. This Class I hitch will give you a 1-1/4 inch receiver opening and has...
    view full answer...
  • Comparing Draw-Tite Trailer Hitch Receiver # 24940 and # 24965 for 2016 Kia Optima
    The Draw-Tite Sportframe Trailer Hitch Receiver 24940 and # 24965 both will fit 2011 to 2017 Kia Optima models. The only difference between them really is that the # 24965 will also fit 2018 Hyundai Sonata's excluding the hybrid as well where the discontinued part 24940 only fit Sonata models through 2017. There is no difference for your 2016 Kia Optima, so I recommend the less expensive of the two. If you will be using this hitch receiver for towing, I recommend the ball mount # 3593...
    view full answer...
  • Correct Wiring Harness and Troubleshooting Harness for 2019 Kia Optima
    The first thing to do is check to ensure you have the correct harness because a 2019 Kia Optima has two different harnesses depending on which model you of Optima you have. For EX and LX models you need T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118453. As of 8/23 we do not have a harness for the SX models, you would need to recheck our fit-guide at a later date or contact the dealer. There are some troubleshooting steps you are going to need to take to figure...
    view full answer...
  • Recommended Trailer hitch for 2012 Kia Optima
    The Curt Class I Trailer Hitch # C11025 and the Draw-Tite # 24965 are built so they're equally sturdy. Their weight capacities are the same, they'd install in the same manner and their build quality is pretty equal. Curt just goes a step further to cover themselves by stating that in order to retain warranty coverage, the # 18050 strap needs to be used for non-trailer loads. Since the strap doesn't work well with every vehicle, I typically recommend the Draw-Tite hitch, which has no such...
    view full answer...
  • Class II Trailer Hitch and Hitch Bike Rack for KIA Amanti Sedan
    You did not mention which specific model year of Kia Amanti you have so I checked a few, including the 2007 and 2008 model years for which we have only one hitch option, a 1-1/4-inch Class II model from Curt, part # C12259. No 2-inch hitch models are offered for this vehicle. In a Class II rack you can use a Class II-compatible hitch bike rack such as one of those on the linked page. Since the hitch is rated for 300-lbs of tongue weight (downward force) you can use a rack with your bikes...
    view full answer...
  • Can Trailer Hitches for a 2012 Kia Optima Tow a Rental Trailer
    Yes, Draw-Tite trailer hitch # 24965 for your 2012 Kia Optima is capable of towing a Uhaul rental trailer. You will also need a ball mount # 3593 and a properly sized ball (whatever the trailer requires) as well as a wiring harness to operate the trailer lights. If the trailer takes a 1-7/8 inch ball use # 19256. And if it takes a 2 inch ball use # 19258. And to add a trailer wiring harness I recommend T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item # 118453 to add...
    view full answer...
  • Parts Needed to Tow With 2016 Kia Optima
    I definitely appreciate the fact you are attempting to tow completely level, and we can get you all the parts you need to tow with your 2016 Kia Optima. The issue is the vehicle isn't going to allow you to tow completely level if the bottom of your coupler measures 18" from the ground. The reason for that is your 2016 Optima only has Class I trailer hitches that fit, and Class I hitches are designed by the manufacturer to be used with specific ball mounts as this is what they were tested...
    view full answer...
  • Trailer Wiring Harness that Fits 2015 Kia Optima SX
    Hey Jerry, the Tekonsha trailer wiring harness part # 118453 does fit your 2015 Kia Optima but it currently is on a pretty long back order so instead you would want the part # C56314.
    view full answer...
  • What Info is Needed to Pick Out Correct Rise/Drop Ball Mount to Tow Trailer
    Hey Jerry that's kind of hard to say without some dimensions but I can still help. Basically you need to measure from the top of your hitch opening down to the ground and then get from the bottom of the coupler lip on your trailer down to the ground. The difference between the two dimensions is the rise/drop you'd need. If you check out the attached help article you'll see more info on this.
    view full answer...
  • Trailer Hitch Recommendation for 2018 Kia Optima
    For your 2018 Kia Optima we have the Draw Tite part # 24965 which is a confirmed fit and would work well. Then for trailer wiring you would want the part # 118453 which is also a custom fit.
    view full answer...
  • Will Installing Draw-Tite Hitch 24965 Create Rust Issues or Void 2018 Kia Optima EX 10 year Warranty
    Installing a trailer hitch receiver like the Draw-Tite Sportframe # 24965 (which is a confirmed fit for your 2018 Kia Optima EX) will not void your manufacturer's warranty. Consumers of aftermarket products (like a trailer hitch receiver) are protected by the Federal Magnuson-Moss Warranty Act. The Act states that if something breaks on your vehicle and you take it in for warranty repair, the dealer must honor your warranty unless whatever modifications you have added to your vehicle...
    view full answer...
  • Can I Move The Curt Trailer Hitch Receiver C11402 From a 2018 Sonata to a 2020 Kia Optima?
    Yes, the Curt Trailer Hitch Receiver # C11402 that you have on your 2018 Hyundai Sonata SEL will also fit your 2020 Kia Optima as they use the same chassis. You will need to order a Replacement Hardware Kit # RHK to get new nuts, bolts and the square hole spacers. The hardware for a receiver is only designed to be installed once and should not be reused. You will need a T-One Vehicle Wiring Harness # 118453 if you will be doing any trailer towing or have a hitch mounted accessory that...
    view full answer...
  • Trailer Hitch Recommendation for 2013 Kia Optima SXL Turbo
    For your 2013 Kia Optima Turbo the Curt hitch # C11025 that you referenced is a confirmed fit. This has a 2,000 lb capacity so it would easily be able to tow a 1,000 lb jet ski. I attached an install video for this for you to check out as well. For trailer wiring you'd then want the Tekonsha kit part # 118453 as it installs easily and has a very reliable converter box. For a ball mount you'd then want the part # C45521 and for hitch balls part # A-82 for a 2 inch ball or part # A-80 for...
    view full answer...
  • Parts Needed to Tow a Trailer with a 2018 Kia Optima
    The best trailer hitch receiver option we have for your 2018 Kia Optima is the Draw-Tite Sportframe Trailer Hitch Receiver part # 24965 which is a custom fit that installs using pre drilled holes in your frame rail. Then for a wiring harness, the best option we have is the T-One Vehicle Wiring Harness part # 118453 which is a plug and play option that will not require any splicing. For a ball mount and hitch ball, I recommend the Draw-Tite Drawbar part # 3593 with the 2" Hitch Ball part...
    view full answer...
  • Trailer Hitch and Wiring Recommendations for a 2013 Kia Optima LX
    Draw-Tite trailer hitch # 24965 is rated for 2,000 pound gross trailer weight and 200 pounds tongue weight. However, you will need to consult the vehicle owners manual to determine the capacity of the 2013 Kia Optima. Whichever is lower, the hitch or the vehicle, is the capacity you will need to go by. You will need the proper ball mount. For a 1-7/8 inch ball use # 19256 and for a 2 inch ball use # 19258. Different wiring harnesses have different capacities. Tow Ready harness # 118453...
    view full answer...
  • Recommended Trailer Hitch Receiver for a 2016 Kia Optima
    For your 2016 Kia Optima, the Curt Trailer Hitch Receiver - Custom Fit - Class I - 1-1/4" # C11402 is a confirmed fit and an easier installation than other manufacturers. There are a few vehicles that each hitch receiver fits, so there are fits other than the Optima for both, but installation will be very similar in these cases so we include the other videos to help. Both of these hitches are confirmed to fit your 2016 Kia Optima and both will require a little bit of trimming of the heat...
    view full answer...

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


Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Brent H
Test Fit:
Brent H
Employee David F
Test Fit:
David F
Employee Andrew K
Video by:
Andrew K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Isabelle B
Updated by:
Isabelle B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.