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

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

Item # 118698
Retail:$141.03
Our Price: $75.58
You Save: 46%
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.

Shipping Weight: 1.5 lbs
Add to cart
In Stock
Tekonsha Custom Fit Vehicle Wiring - 118698
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

Customer Photos

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. Powered ModuLite reduces strain on wiring system. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118698 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 (121)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring - 118698

  • 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 existing wiring. 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
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Connect hot lead to battery
  • Includes ModuLite power converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects to battery to avoid overloading vehicle's electrical system
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 4.2 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 in your rear cargo area, behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies and some interior paneling to access this harness.


T-One Connection Location Points Behind Tail Lights

Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided fuse.


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.


ModuLite Powered Tail Light Converter

A ModuLite power module is built into this T-One connector. Because your vehicle runs on a multiplex wiring system, the wiring needs to be converted to be 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.



118698 Tekonsha T-1 T-Connector - 4 Wire - Modu-Lite Converter Included

Installation Details 118698 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 - 118698

Average Customer Rating:  4.7 out of 5 stars   (121 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. Powered ModuLite reduces strain on wiring system.

by:

The kit had everything I needed, and installation was easy.



by:
2022 Kia Sportage

Very easy instillation, the video helped very much. I didn't have a lift so used ramps to lift the car, even though no lift I installed the wiring harness in 1 and a half hours. I"am impressed with the etrailer team and the quality of their products. I will be back for sure very happy customer here



by:
2017 Kia Sportage

Perfect fit. Just not give 5 stars as it’s quite “annoying” to instal:
1) removing the taillight is a PITA! Even removing two screws light did not get off! Broke after so much trying. The pressure pins that hold it are very strong and no much place to grab
2) Wiring the power from battery to the back is a hassle! And I’m an experienced mechanic! Took me about 45 minutes to find a way to route the wire (from inside the vehicle as from under will for sure not safe)

Etrailer Expert

Mike L.

7/21/2018

Its perfectly acceptable to run the wire under the vehicle, as long as you avoid anything thats hot or moving, like exhaust, steering and suspension components. If necessary, wire loom like part # 7509-1 which is sold by the foot can be used to provide additional protection to the wire.



by:

Hookup was easy and straight forward. The 4 wire for the trailer is made to be mounted outside but I saw no mention of an additional bracket needed when I ordered the kit. I would have liked another 2 foot of wire to keep that corrosion sensitive inside the car, next to the spare tire.

Etrailer Expert

Jenny N.

2/21/2023

You are right in that adding on mounting bracket will be useful since the harness is stored outside the vehicle. I have one that I like recommend, part # C58001, which attaches to the hitch receiver to mount the plug next to it. That way it is right there whenever you need to use it. And it can be protected against corrosion by using dielectric grease part # LT37534. The harness also comes with a dust cap to cover the 4 way when not in use.



by:
Kia Sportage

Good price.
Fast shipping.
Perfect
fit (2017 Kia Sportage LX)
Hitch installation (2 people/ vehicle lift) - less than 20 min.
Wiring harness (Tekonsha T-one) - time consuming but not difficult - 90 min.
Very pleased with this product.
Thanks much.



by:

Easy installation without having to splice any wires or use a test probe and try to guess which wire is for what just unplug existing vehicle wires and plug in most of the time spent was disassembling the vehicle panels to get to the connectors the video is a huge help I watched it on my phone all along and paused at each step it was very helpful would not want to try without it I highly recommended



by:

Was easy to put in and the plug in wiring was a snap. Very happy with the purchase. Now I can bring my daughter to college with out having to bring 3 or 4 cars.



by:

Great trailer hook up !



by:

Every car i have bought a harness for has been a perfect fit and really easy to install following their videos.



by:

It was perfect for my car and works gre at…



by:

Instructions easy to flow nice pictures showing how things look also video was great,just what the video mentioned running the power wire so-so just more timing consuming



by:
2017 Kia Sportage

I like the T- 1 Vehicle wiring harness Iplan to use it to pull my trailer , I like the way itplug,s in so I dont have to splice nothing

Leo S.

6/11/2018

it is working fine thank you so much.



by:
2021 Kia Sportage

I received my order in 2 days which was awesome!! The sue provided everything I need including an installation video which was very well done!! Thank you!



by:
2019 Kia Sportage

I ordered this for my SUV so I could hookup a trailer. Shipping was fast and I received in 4 days. I am not a mechanic by any means, with that being said, bought some car ramps and installed the hitch receiver (Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" - 76074). I also installed the wiring (T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118698). Took about 4.5 hours but overall look the look and feel. Everything went together great. I watch the video beforehand. I would highly recommend these products.



by:

I ordered this for my SUV so I could hookup a trailer. Shipping was fast and I received in 4 days. I am not a mechanic by any means, with that being said, bought some car ramps and installed the hitch receiver (Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" - 76074). I also installed the wiring (T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118698). Took about 4.5 hours but overall look the look and feel. Everything went together great. I watch the video beforehand. I would highly recommend these products.



by:

I installed this hitch twice, first on a ne car that got totaled when a fellow drove into the side of it in a parking lot, The second hitch went on the same model replacement car.
Both times, the hitch, for a KIA Sportage, needed a delicate tap with a 12 pound sledge hammer to spread the mounting flanges before it would slide onto the frame. No big deal, otherwise the hitch is great, ordering was simple, and the customer service was excellent.



by:

I like this product. I was able to install this wiring harness in about an hour. Only thing that took me a little bit of time was running the harness where the brake light is attached to the fender well. It was a booger running that line up, but not something I couldn't do. Took a few minutes to run the black power line from the rear of the car to the battery under the hood, but again, wasn't something overly difficult to do. Just time consuming I suppose. As for the harness itself, it's well made and the connectors snap in precisely. I recommend. Just follow the online video instructions. Easy enough.



by:

Great kit. Instructions were clear and easy to follow. Installed myself in about hour. Never an issue. My trailer lights work every time. The only additional thing I do is apply a thin coat of diaelectric grease to the contacts to avoid water related corrosion. Absolutely no complaints with this kit. Works exactly as designed.



by:

Would love to give this 5 stars but first this, the wiring, parts, directions, ease of installation, videos and everything was EXCELLENT. However, the length of wire for the trailer connector, from even the closest placement possible (I moved it twice, as close to the hitch as possible while staying inside the wheel well) is just long enough. NO SLACK AT ALL. Needs to be about 8-12 inches longer.



by:
2023 Kia Sportage

Excellent product! Very easy to find natal and fit perfectly. Etrailer is the place to get all my part’s! This was my 4th harness and my 3rd hitch! NEVER an issue! Well Done!!



by:

Love how the paperwork shows the actual vehicle the components are designed for!
I’ve purchased from etrailer before and will continue to do so!
This time they even included a circuit tester!



by:
2022 Kia Sportage

This company is easy to work with and the hitch came a day early.A1operation



by:
2022 Kia Sportage

I recieved the products today. The help and customer service has been incredible so far! I will install the hitch and wiring harness this weekend. I will include an absolute honest review with pictures when I am finished !



by:

Very easy to install, especially after watching the video. When removing the tail light housing, I used a flat blade screw driver, covered with masking tape, to pry the housing away from the vehicle. And for the battery wire, I followed it along the brake lines. There's definitely no rubbing or heat risk, and it didn't require very many zip ties to hold it in place. The double-stick tape didn't want to hold at all, so I simply zip tied the module to the vehicle's wire bundle.



by:
2017 Kia Sportage

Complete wiring kit that fit perfectly and had easy to follow directions

Tod C.

9/2/2018

Wiring harness continues to work fine after a year.


25
121
Show More Reviews

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

  • Recommended Trailer Wiring Harness for 2017 Kia Sportage
    The available 4-Way trailer wiring harnesses that are confirmed to fit your 2017 Kia Sportage will all essentially install in the same manner. When installing a harness like the Tekonsha T-One # 118698, you will simply plug the mentioned connectors to existing ports that are located behind the driver side tail light and under the vehicle on the driver side. After the T-connector is installed, you will then need to run the hot lead up to the vehicle's battery and connect it to the positive...
    view full answer...
  • Recommended Trailer Wiring Harness for a 2021 Kia Sportage
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118698 is the best trailer wiring harness option for a 2021 Kia Sportage. It features a plug-in play install and provides a standard four pole trailer connector used on most trailers. It's our most reliable option for this purpose. The install video below will help you get it installed.
    view full answer...
  • Comparing Tekonsha T-One and Curt T-Connector Wiring Harnesses for a 2018 Kia Sportage
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118698 is what I recommend for a 2018 Kia Sportage. In comparison to the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # C56321, the T-One has a different converter box which is easier to secure and more reliable (better potting). It also has an integrated dust cap as opposed to separate on the T-Connector which can easily be lost.
    view full answer...
  • Trailer Wiring Harness for a 2017 Kia Sportage
    For your 2017 Kia Sportage you can use Tekonsha trailer wiring harness # 118698. It is designed to fit the 2017 to 2018 Kia Sportage. I have included a link to a video showing an example installation for you. I recommend the Tekonsha wiring harnesses more than others because they work well and are more reliable.
    view full answer...
  • Recommended Trailer Wiring Harness Option for 2022 Kia Sportage
    Although the 2022 Kia Sportage is the first model year of the 5th generation of the vehicle, the # 118698 trailer wiring harness does indeed carry over from the 2021 model, and will work just fine on your 2022 Sportage. I've linked to a video that will run you through a typical installation.
    view full answer...
  • Are There Any Replacement Parts for the Curt T-Connector Wiring for a 2017 Kia Sportage
    If the powered module that comes on the Curt T-Connector # C56321 shorted out and now your trailer lights are staying on constantly then you will need to replace your wiring kit as there are no replacement circuit boards or modules. You can however use the Curt Upgraded Circuit Protected Powered Tail Light Converter # C56496 and just splice it in behind the converter box. If you'd rather go with a whole new kit then I recommend using the Tekonsha T-One # 118698 because we have found the...
    view full answer...
  • Trailer Wiring For 2019 Kia Sportage LX and How To Install It
    We do have plug and play wiring for a 2019 Kia Sportage LX part # 118698. This Tekonsha 4-pole flat wiring harness fits all models of the 2019 Sportage and easily plugs into your vehicle's wiring harness which is located in the rear cargo area behind the driver's side and passenger's side tail lights. The black wire does need to be attached to the positive side of the battery to provide power to the modulite converter which protects your vehicle's electrical system. The connections behind...
    view full answer...
  • Recommended Trailer Hitch Receiver To Tow Wheel Chair Trailer W? 2018 Kia Sportage
    I took a look at the owner's manual for your 2018 Kia Sportage, and it looks like your vehicle can tow up to 1650lbs with 220lbs of tongue weight. Since that is the case you could tow your Wheel chair as long as the trailer you have does not exceed 1210lbs and your wheel chair is 440lbs as you mentioned. To do this I recommend going with the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13281 you were looking at as we have found their hitches to have a tougher powder coat...
    view full answer...
  • Will Curt Trailer Hitch Receiver C13281 Fit A 2017 Kia Sportage SX Turbo?
    The Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13281 you were looking at is confirmed to fit your 2017 Kia Sportage SX Turbo. The # C13281 has a 525lb tongue weight rating and 3500lb trailer weight rating making it a great option for carrying a bike rack, a cargo carrier, or a ball mount for towing a trailer. If you are planning on towing a trailer you will need a vehicle wiring harness # 118698, and a ball mount, hitch ball, and hitch pin and clip which is all found...
    view full answer...
  • Will the erailer Hitch e72TR Fit A 2021 Kia Sportage EX AWD
    I would not take your vehicle back to the welding/muffler/tow hitch shop you visited. The etrailer Hitch # e72TR you mentioned is confirmed to fit your 2021 Kia Sportage EX All Wheel Drive so I am not sure where they are getting their information. This is the hitch I recommend as it has the highest ratings out of all of the hitches available for your vehicle so you will know your trailer hitch receiver is capable of any weight trailer that your vehicle is rated for. The # e72TR has a...
    view full answer...
  • Recommended Hitch and Shipping Box Dimensions for a 2018 Kia Sportage
    I went out to the warehouse and measured the box we ship the Curt Trailer Hitch item # C13281 in. It is 58" x 8" x 26" and weighs 33 lbs. The Curt Trailer Hitch item # C13281 is confirmed to fit a 2018 Kia Sportage. It is custom fit and bolts to your Kia with included hardware. I have linked a picture below along with an installation video so you can what this hitch looks like when installed. If you are planning on towing you will also need a wiring harness item # 118698 and a ball...
    view full answer...
    Image 1 for
  • Trailer Hitch and Wiring for a 2018 Kia Sportage SX Turbo 2.0L
    Yes, the etrailer hitch # e72TR does fit the SX Turbo models of the 2018 Kia Sportage. I I linked a video that shows when we installed it recently so you can see the process. If you plan on doing some towing I recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and a storage bag. If the ball mount kit does not...
    view full answer...
  • Recommended Trailer Hitch Receiver For 2021 Kia Sportage
    For your 2021 Kia Sportage I recommend the etrailer Hitch Receiver # e72TR due to it having a 2" receiver giving you the most options for accessories, but also due to its 675lb tongue weight rating and 4500lb trailer weight rating which is the highest ratings out of all of the trailer hitch receivers offered for your vehicle. If you are planning on towing with your Sportage you will also need a trailer wiring harness # 118698, and a ball mount, hitch ball, and hitch pin and clip which...
    view full answer...
  • Hitch and Wiring Harness Recommendation for a 2017 Kia Sportage SX GDI
    The etrailer hitch part # e72TR is the correct hitch for the 2017 Kia Sportage. We did install this hitch on a 2018 Kia Sportage SX GDI so it's confirmed to fit your Sportage. I recommend Tekonsha part # 118698 for trailer wiring. The Tekonsha wiring harness is a t-connector that plugs in behind the driver's side and passenger's-side tail lights. It does not require splicing but does require a power wire that connects to the battery. The power wire powers the Modulite converter that is...
    view full answer...
  • Trailer Hitch and Wiring for 2017 Kia Sportage
    Nope, there's nothing special you'll need to install T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118698 in your 2017 Kia Sportage. This harness will plug in behind your Kia's tail lights and once you connect the hot lead to the battery you'll be set, as you can see in the linked install video. For a trailer hitch, the etrailer # e72TR is a great option; it is a Class III 2" hitch that is a bolt-on installation so no drilling into your Kia's frame will be required....
    view full answer...
  • Which Trailer Hitch Recommended for 2021 Kia Sportage
    Because it has a slightly higher tongue weight capacity than the Curt # C13281, I'd recommend going with the Draw-Tite Class III hitch, part # 76074. The Draw-Tite hitch has a 675 lb tongue weight capacity which makes it the perfect choice for carrying a bike rack or other hitch mounted accessory like a # C18151 cargo carrier. For a trailer wiring harness, I'd recommend the # 118698 trailer wiring harness, a ball mount like part # 2753 and for a trailer ball, use # 19261 for a 1-7/8 inch...
    view full answer...
  • Trailer Wiring Recommendation for 2017 Kia Sportage
    You are on the right track! The last thing you need is wiring so that your 2017 Kia Sportage can control the taillights of the trailer. For that you'd want the Tekonsha wiring kit part # 118698. I recommend this kit for your vehicle because it will install without requiring splicing into the vehicle wiring and because it has the most reliable converter box of all of the kits we offer. This will work great with the Curt hitch # C13281 you have and the Reese ball mount and hitch ball you...
    view full answer...
  • Will the Curt Trailer Hitch Receiver # C12158 Fit Both the 2017 and 2020 Kia Sportage?
    The Curt Trailer Hitch Receiver # C12158 is confirmed to fit all trim levels of the 2017-2021 Kia Sportage. If you are transferring this hitch from a different vehicle I recommend using new hardware. The Replacement Hardware Kit for Trailer Hitches # RHK will allow you to order a new set of hardware specific to your hitch. Both the Curt T-Connector Vehicle Wiring Harness # C56321 and Tekonsha T-One Vehicle Wiring Harness # 118698 will also fit the 2020 Sportage if you are needing to transfer...
    view full answer...
  • Hitch Fit for 2021 Kia Sportage SX Turbo
    According to Curt, their # C13281 is compatible with all models of the 2021 Kia Sportage, including the SX Turbo model. If you'll be towing with the hitch, you'll also need a trailer wiring harness like # 118698, a ball mount like # 2753 and a trailer ball like # 19260 for a 1-7/8 or # 63845 for a 2 inch ball. I've linked to a product install video for the hitch and the trailer wiring harness, as well as to the installation instructions.
    view full answer...
  • Does Tekonsha T-One Wiring from 2017 Kia Sportage Fit a 2020 Kia Sportage
    Great question! Yes, the T-One Vehicle Wiring Harness # 118698 is compatible with your 2020 Kia Sportage. This kit fits a 2017-2020 Sportage so you're good to go. In all honesty if you checked a month or so ago it could very well have not been listed as a fit yet. Since your 2020 is a newer vehicle sometimes they are still figuring out what wiring fits what vehicle so Tekonsha may have just recently confirmed that the 118698 actually fits the 2020 model. If you don't already have a trailer...
    view full answer...
  • Best Hitch and Trailer Wiring Option for 2022 Kia Sportage
    Hi, we have just what you need for your bike rack and new 2022 Kia Sportage. I recommend the Curt Trailer Hitch Receiver, # C13281 and the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # 118698 along with the Mounting Bracket 4-Pole Flat, # 18144. I have linked below some product review and installation videos of each of these items to assist you with installing. It is really easy to do with a few hand tools. For a ball mount, use part number # 2753 along with either,...
    view full answer...
  • Trailer Hitch Receiver for 2021 Kia Sportage Towing and Carrier
    Your 2021 Kia Sportage LX is capable of towing 1,653 lbs with a maximum tongue rating of 200lbs. The Curt Trailer Hitch Receiver # C13281 is the one I would recommend for you. The 2" receiver that this hitch has will give you a wider variety of options for ball mounts and drops. It also does not hang down as low as the etrailer # e72TR, this will limit the chance of dragging on tall curbs. For the Tekonsha Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118698. It uses a powered...
    view full answer...
  • Comparing Curt and etrailer Hitches for 2018 Kia Sportage
    For your 2018 Kia Sportage the etrailer hitch part # e72TR and the Curt hitch part # C13281 are pretty similar but have some distinct differences. The Draw Tite is what I'd recommend for two reasons. If you plan to carry a bike rack or a cargo carrier the etrailer doesn't require you to use a stabilizer strap like the part # 18050 which the Curt does. Both hitches will be mostly concealed as they crosstube isn't visible and have great towing capacities. I attached a picture that points...
    view full answer...
    Image 1 for
  • Mounting Bracket for a 4-Way Trailer Wiring Harness on a 2017 Kia Sportage
    Neither of the Class II hitches for your 2017 Kia Sportage come with a wiring harness mounting flange. The one you see is on the etrailer Class III hitch # e72TR. There are many mounting brackets that you can use though. Whether or not the wiring can be run externally on a given vehicle is a product of the vehicle itself and how the harness installs. Basically on affected vehicles if there is a grommet somewhere in the bottom part of the cargo area through which you can route wiring then...
    view full answer...


< Previous
12



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


Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Joshua S
Video by:
Joshua S
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee John S
Video Edited:
John S
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Alexander C
Written by:
Alexander C
Employee Robert C
Test Fit:
Robert C
Employee Ryan G
Test Fit:
Ryan G

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.


Product Experts Available Now!
Call 1-800-940-8924