T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
This item does not fit your vehicle
2004 Ford Excursion
These items fit your vehicle
2004 Ford Excursion
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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.
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:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your trunk, behind the tail lights on both the driver's side and passenger's side. You will need to remove some interior trim or carpeting to access the harness. 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 in an out-of-the-way location 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.
A ModuLite power module 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. 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.
California residents: click here
I have yet to receive the wiring harness so I am unable to rate the wiring harness at this time.
Ronald S.
4/26/2022
My mistake, I received the light kit inside the box that the trailer kit came in.
Wrong item
Victoria H.
11/14/2024
Hi Jeff, this will fit onto your 2021 Nissan Sentra. Please let me know what part you received, so I can make this right for you.
Hitch slider as expected, wiring was a breeze. I opted to keep the main powered wire external rather than muck around with it but plug and play and the lights are spot on, no splicing so I can return it to factory if needed for some reason. Hands down the easiest trailer wire I have installed and customer service that should be used as a benchmark for the digital world.
I have ordered my trailer needs from etrailer for years! I have never been disappointed and believe I never will. The light harness I ordered and received is excellent!! Thank you etrailer !!
Just installed a Curt trailer hitch from etrailer, on a 2013 Nissan Sentra , and it fit like a glove - Thank you to Greg of etrailer for helping with the particulars
Works great. Installed as easily as they said would. Fast shipping.
Works Great! Fast shipping!
Wire under the car difficult limited attachment points.
Haven't recieved it yet
Great price, quality product. Already installed.
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
At etrailer 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.
Katrina B.
4/26/2022
I see that you have also received a hitch receiver. We like to keep all of the items in the same box. Can you please check the box holding your hitch to make sure that the wiring harness is not also in there?