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Wiring a trailer usually means finding and tapping into factory wires, but this harness eliminates that step. The CURT T-Connector plugs directly into existing vehicle wiring to create a 4-pole flat trailer connector. No splicing or guessing—just plug it in for running lights, turn signals, and brake lights that work right away.
Factory circuits aren’t designed to handle trailer load on their own. This harness includes a built-in converter that draws power directly from the vehicle battery instead of the tail light circuits. That keeps the vehicle wiring safe from overload and ensures consistent lighting, even with additional trailer lights.
Since the harness uses independent power, one wire needs to be routed to the vehicle’s battery. It’s a straightforward task using the included lead and fuse holder. Running that power line up front takes a little extra time, but it’s worth it for long-term reliability and protection against circuit damage.
Once installed, the 4-flat plug sits neatly near the hitch, ready for any standard trailer connection. The molded connector and weatherproof cover keep moisture out and give a professional finish that looks like it came from the factory.
Customer Satisfaction Score:
92% were satisfied with this product
8% of customers were not satisfied
Ratings & Reviews
The plug-in installation went well. The wiring harness made the job look professional. The instructions were very clear and easy to follow.
Awesome to do business with , the hitch was on my doorstep in two days , detailed video on the wiring harness made it super easy , would definitely recommend etrailer !!
Looks very well built.
I found the install to be easy per video. I installed a factory hitch and installed the curt T-Connector and on my 2022 Ford Edge. I unscrewed the fenders and pope them lose and was able to just slide the wiring to the rear tail light in proper place instead of fishing and get it stuck. The hot wire was a little challenge do to there was not really any good place to route to battery
Great Kit, Used Your Product several times !!!
Your wiring harhness fit perfectly and worked perfectly thank you .Don
Always have a great experience when buying from trailer. Good quality products. Have one suggestion. When shipping small items inside larger boxes should be protected. The wiring harness was shipped inside the box with the hitch receiver. Which is understandable. The package the harness was in came open and the parts were all over inside the larger box. The staples holding the box closed from the factory did not hold. The package should have been taped to keep it closed. Fortunately nothing was damaged.
I will never purchase another item from a trailer
I looked up the item that I wanted they said it would fit my vehicle when I got it it was not the right one I called them wanted to send it back but then they wanted me to pay the shipping to return it which was $ and something
Then they talked me into exchange event and it still cost me extra because of a different part and I guaranteed it to be here on Monday UPS and not United postal service
Of course Monday came didn't show up I looked at it and it was sent by the post office which takes about 5 days to get it from Missouri to Michigan I finally got it today but I still have not got my return money for the first one I purchased they said it might take until the end of the week to get that is a bunch of bull crap very poor service I could have got the same thing over here at the (local trailer dealer) for $ less and I could have got it on the first day
Part of the wire harness was plug and play, the rest was run a wire from the Battery to the rear of the car, and mount the ground wire. I love the plug and play wire Harness systems, like the Explorer has.
everything came as ordered if I had any complaint it would be the wire connectors I feel they should be a heat shrink type. I replaced mine with heat shrink type connectors there for four stars instead of five.
All the materials are high quality but the connector that plugs into the tail light connector on my 2023 Edge had a slightly different outline shape and it wouldn't slide on easily. I had to modify the connector on my car to get it to clip on. Everything is working OK but I thought you should know.
Easy to install. directions were easy to follow. I took my time and only took me 1:45 minutes from start to finish. I installed the wiring when I installed the hitch. Saved a bunch of money DIY!!!
Great price and very fast shipping
Great and installation was easy
Instructions indicate running a wire from the front of the car(battery) to the back. You have to take half the car apart to do that. I'm not doing that, it's a brand new car. I'm returning the wiring kit.
Would like to thank e trailer ordered hitch and wiring harness both worked perfectly could not find harness anywhere else picking not bad installed all myself watched your videos very helpful thanks
From Order to Delivery each step was Documented as to Who took the Order, Who picked it, who packaged it, and the Tracking was spot on.
The Box arrived with some torn edges and holes in it, I would assume made by the Shipper, but all the order was securely taped inside and everything was there.
If the two install and does what it is supposed to do.
Video was very thorough and install was done in about an hour by myself with basic tools, very happy!
James D.
5/19/2026
Nice work Matt, Thanks for letting us know and we appreciate you choosing etrailer!
Excellent product Manufacture of vehicle does not make it easy to access for installation but the product fit as intended and worked flawlessly
Haven't got to install my hitch yet but I absolutely love how fast i got my items ordered my stuff and 2 days later sitting on porch
Excellent value for a great product! I love how it hides so well under the rear bumper/fascia. They include everything you need for a complete install. Fast shipping and great follow up. The website is so easy to navigate.
The menu does not force "sub model" selection, which is very important. This particular Ford Edge 2019-2024 has different connectors on the taillights for the Se-Sel than on the Titanium and ST. I got the wrong one for my Edge Titanium. Also the wire to the front of the car is Very Difficult to get into the engine compartment. This is lightly brushed over.
The video that was on my car exactly. Made it a lot easier to install the hitch and wiring harness.
I am very happy with Etrailer. I bought a trailer hitch and Tee connecting wiring harness and I watch some YouTube videos and the job went smooth and I especially like their design. They came up with on how to fish the brackets and the bolts through the sub frame to attach the hitch, it took me approximately the same amount of time that they said it would. I am very, very happy and I highly recommend these products.
John
11/24/2025
I have had no problems and would recommend it
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Robert
6/6/2022
I like the hitch and the bracket that I bought so the trailer light wire isnt just hanging it look nice and professional