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Imagine being able to install a trailer wiring harness without needing to cut or splice wires. The Tekonsha T-One Vehicle Wiring Harness makes it possible with its custom-fit, plug-and-play design. This ensures anyone can easily add a 4-way flat trailer connector to their vehicle, saving both time and technical hassle.
Worried about the longevity of your trailer wiring harness? The T-One harness is constructed from 16-gauge bonded wire, providing durable performance in various conditions. This robust design ensures it stands up to the demands of towing year-round.
Tired of mismatched trailer and vehicle wiring? The T-One harness features a ModuLite power converter, ensuring your vehicle's signal lights perfectly sync with your trailer's, providing seamless interaction. With a maximum amperage of 7.5 amps per circuit, your braking and running lights are always ready to function.
Protecting your connector from dirt and debris has never been easier. This wiring harness includes a built-in dust cap for the 4-way flat connector. It keeps the connection point clean, ensuring reliable performance every time you hitch up.
To ensure long-lasting performance, a small amount of grease on all electrical connections is recommended. This attention to detail helps to prevent corrosion, maintaining your connection's reliability and extending the lifespan of the harness.
Whether your trailer has a 5-pole, 6-pole, or 7-pole connector, this harness is designed to adapt with the use of separately sold adapters. This versatility ensures that no matter your trailer type, you can confidently connect and hit the road with ease.
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Good quality. Proud of my installation.
This hitch was very easy to install and it fit perfectly. It took about 1 hour and 45 minutes to complete. The video instructions were very clear. They were right on the money with their time estimate, had I planned ahead I could have gotten it done quicker.
Tow packages aren't standard on SUV's anymore and prices are sky high to have hitches installed by "professionals". These hitches are so easy to install that nearly anyone will get professional results and save a lot of money.
In addition to saving money and the satisfaction of doing this myself, I like the fact that I can hide the hitch if I want to.
Just want I needed and fast easy instructions and save time and money
The rep Ashley was great got me my wiring harness to me quickly made sure I got the right product
Awesome product takes some time to install but after that you don’t realize that there is a hitch behind the bumper
Easy installation and worked perfectly. I didn't get to use much since I traded vehicles. I didn't remember to take a photo. I was completely satisfied with the Curt trailer hitch and the wiring so I ordered a Curt trailer hitch and wiring for my new Cadillac XT5 from etrailer.

Billy L.
7/5/2021
The hitch and wiring work fine, no problems. Well satisfied.
So far it’s been a great process but I haven’t been able to install the parts yet. As soon as I do I’ll let you know how it went
Perfect fit easy installation
All is good. I would like to buy an affordable electric bike bike rack.

Brooke M.
5/30/2022
Glad to hear the wiring is working well for you. As far as electric bike racks go, part # S64678 may be a good place to start. It is rated to be used on the back of motor homes as well. It can hold two sixty pound e bikes with tires up to five inches wide. This rack works on one and one quarter inch to two inch hitches. At this time it is the most economical option, but sometimes prices can fluctuate so just be aware of that.
Easy to install, the videos on hitch and also electrical wire harness were helpful! I called customer service with a question and she told me what video to watch and minutes and seconds in the video where it shows how to solve my problem
This mounting bracket was the way to go when installing our Draw-Tite trailer hitch and T-One Wiring Harness on our 2020 Traverse. Bolted right on to the provided mounting plate on the hitch. Out of the way, yet easy access.
It looks very well built very happy with my purchase
Great product at a great price. The wiring harness(118761) just plugs into the factory plug on our 2018 Traverse ,very easy install if done at the same time of hitch installation when the rear bumper cover is off the vehicle. Works fine.
Just had my e-trailer hitch install everything went very well. I really like the fact that the hitch is hidden behind the bumper of my Traverse. Good product good price and good service.
Great fit, all the components and hardware required for the hitch installation were included, even the fishing wire for the bolts. Highly Recommend using these guys. Would recommend buying the wire harness with the hitch and installing before placing the back panels back on.
I bought this along with the hitch for my Traverse. It was easy, just plug it and secure the wires. If I need to install another hitch to another vehicle, I will look for the same thing.
Delivered quickly. Great price. Easy to install at same time as hitch. Worked perfectly.

Wes
9/5/2021
Havent used it yet. Its a COVID thing.
Works great no issues with this item. Makes connecting trailer stop and taillights simple.
The Curt hitch did nit fit exacrly, it was bent. Probably dropped during transport. Followed etrailer recommendations to correct, worked great. No issue with the wiring harness. I have yet to receive the wiring test device
We are very pleased with our new trailer hitch. The installation was no trouble at all. I would definitely recommend this company and product!!
Great product...easy installation follow my installation of the Draw-tie Hitch.
Worked great when hauling my bikes for a MotoX trip with my son
This group of providers and product are great. I could not have ask for any better service and the product install surprised me. Easy. thanks.
Placed order and it was at my door 2 days later. Faster delivery than the giant online e-commerce company. I mainly decided to buy from etrailer because they take the time to provide great easy to follow installation videos that made installing simple.
A friend and I today put on the hitch and the wire harness. It took us a few hours for a couple guys that are 63 years old.
As perfect as perfect gets as for as OEM fitment,however the instructions should instruct you to ground the loop, not just leave if for you to assume in case you are not familiar with auto electronics.
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Brooke M.
6/5/2025
Everything seriously looks awesome, Don! You have every right to be proud :)