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Wiring a trailer can be a hassle, but this Curt T-Connector makes it simple. The harness plugs right into your vehicle’s existing factory tow plug, so there’s no need to splice or tap into the tail light wiring. It’s a clean, straightforward install that gets you ready for towing lights in minutes.
When you tow on public roads, working lights aren’t optional—they’re required. This harness gives you a 4-way flat connector that powers your trailer’s running lights, turn signals, and brake lights. It provides everything needed to keep your trailer legal and visible every time you hook up.
Even if your vehicle didn’t come with the full tow package, the factory tow connector is still there and ready to use. This harness connects directly to that plug to activate trailer light functions once the proper fuses and relays are installed. It’s a simple way to get working trailer lights without chasing down wiring diagrams.
The 4-way end includes a dust cap for protection when not in use and fits neatly into standard flat-mount brackets like Tow Ready’s #18144. That keeps the connector handy next to the hitch and out of the way when you’re not towing. It’s a tidy finish that looks like it came straight from the factory.



Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
I purchased a Curt trailer hitch and s wiring harness for our GMC Acadia. Everything fit perfectly. Easy to install. I am very glad i chose etrailer ... great prices too. Everything shipped and was delivered quickly.
Excellent ordering, shipping and tracking services. Just installed on Enclave in the 30 minutes estimate. The video really helped.
Haven't installed this yet, but I think it will be fine. Website installation videos make installing the parts easy.

Kenneth S.
7/10/2020
Wiring works well. Easy to mount. Easily would buy again.
Product installed by U-Haul, and worked fine for about 7-8 months. After that all lights on my 2014 Buick Enclave no longer functioned. No brake, turn signals, or tail lights worked. Buick dealer nor U-haul would not work on the issue, and had to completely remove the product to get the lights working again.
DO NOT buy this product.
Purchase a hitch for our GMC Acadia about a year ago. It was easy to install and the directions were very easy to follow. We pulled an empty tandom axle car hauler from Vegas to Southern Arizona and the hitch worked perfect. But the main reason for the hitch was to add a hitch cargo basket to the back of the car when we travel and it works perfectly. Exactly what we needed. Thank you etrailer for this perfect item.
Product was shipped quickly and was well packaged.
All parts were in the package.
Installation was easy. Instructions were well written and easy to follow.

Ken
12/19/2017
The products are still working fine.
Super! On the Traverse, the factory provides all trailer wiring at a connector in the right rear fenderwell. This harness easily plugs right into that connector, and is just the perfect length to bring the plug out to the hitch. I used the TrailerMate TM76470 mounting bracket on my Hidden Hitch 87435 receiver. The length of the wire harness is perfect -- reaches just right, without a bunch of extra wire to deal with. The harness includes relays and fuses to add to the factory fuse panel to utilize the factory harness. The instructions are incorrect as to where the battery of the Traverse is (under the floor behind front passengers' seat), and also where the factory connector is (right rear fenderwell), and the diagram for the placement of fuses and relays requires some studying (look in the lid of the factory fuse box - everything is labeled). You DO NOT have to remove the fenderwell to get to the connector -- reaching up there from below is easy. Look at eTrailer's help videos online -- this really is an easy product to install -- with no tools!
This connector worked great! Make sure you really press the factory end together with the harness it takes quite a bit of pressure to make the connection.

Phillip
10/16/2023
The connector worked fine once I got the factory plug pushed in all the way, pretty awkward place to connect inside the rear fender on my 2013 Traverse.

Installed as the directions stated , i still wayched the video. But works perfect and was exactly as described fit and priced well.
Excellent product. Access to the vehicle connection was tight but with a little extra leverage was able to mate the connections. Owners manual and fuse/breaker cover diagram aided in the installation of the fuses and breakers. Works GREAT.

Rod W.
12/9/2015
Still working great with no issues. Great product.
Excellent hitch and cable. Used the video to make the installation easy. etrailer had the best price and support of any of the companies I searched. Thanks!

Kris M.
10/18/2018
The hitch and wiring are great. No problems at all. Easy video installation and printed materials. I will come back if I need anything.
The trailer hitch was easy to install, no problems. I had the trailer lighting hookup installed and it works great. Your products are great!

John B.
6/6/2018
Product performs well!
The tow hitch was great quality , fit perfect. My wiring was lost in transit bc shipper damaged box but etrailer rectified that immediately

Adam
6/25/2024
I have had no complaints I have been very happy with both the hitch and the wiring great quality build and reliable
As usual, great response time and service. The only thing about the kit is that it was short one 10amp low profile mini fuse, had an extra 30amp, so I just had to pick some up at the local auto parts store. Everything else went off without a hitch.
Thats kinda funny cuz of course I bought the hitch from etrailer as well, which fits and works great!
Thanks!

David
6/1/2024
Everthing is still working great...no issues at all!
Actually a time consuming install. Very important to disconnect the battery ground. I didn't, and got a seatbelt and airbag alert. I disconnected the battery and waited 15+ minute's. Reconnected and all cleared. Routing the tail away from exhaust was a challenge, but found a very safe place between 2 frame channels of the bumper. It worked great. Thank you.
I received the hitch and wiring harness for my 2015 GMC Acadia yesterday (1-9-25). I started the installation process this morning at about 8:00 and had the hitch installed in about 40 minutes. Watch the videos, very helpful. Then it took me about 15 minutes to install the wiring harness, checked out the lights and everything works perfectly. The local shop wanted $160 to install hitch and wiring, so I made a few bucks in less than an hour. Oh, did I tell you I'm 75 years old and I completed this job without any assistance.
Needed this kit for the hitch I purchased. came as expected. I decided in the end not to put it on as it is in the high 90's here in Florida. Just didn't feel like crawling under the truck. However I did talk to the mechanic shop that installed it for me and they said it is one of the easier after market hitches and wiring kits they ever installed. Also etrailer was great to deal with as well.

Joey D.
1/6/2018
No issues
Great product made specifically for the Chevy Traverse. Contains everything necessary for the electrical wireing except zipties and wire shield tubing. I tried many of the "OEM" harnesses from Autozone, O'Reilly's and Napa but they did not have the correct plug housing to match the factory plug up in the fender.
Wish I would have found this to start with or that a full package option with a hitch reciever was offered!

Luke
4/2/2023
It worked great! We used it to move 2,300 miles. We had zero issues. Again, great product and better than the competitors!
Installed the 75528 hitch and C56202 harness for my 2015 Buick Enclave over the weekend. The install was simple and the you tube videos were a big help. There could have been a little extra length on the wire harness, but overall plugged right into my existing connectors. The hitch is hidden and is clean after reinstalling the back cover. Overall very satisfied.

Clay H.
7/5/2017
I havent used it much, but no issues so far.
Super easy install on a GMC Acadia! Plugged in and tied it to the hitch, done.
So easy to install stall, works great.
bought with a hitch. Great product, plugs right into the factory wiring.
This seems to work great. I don't have a trailer but wanted to be prepared if I ever need to rent or borrow one. I tested using a multi-meter. I took the Torx screws out they recommended but could not get it apart far enough to reach the connector. I could not get the trim pieces off that was suggested in the video. Perhaps I needed a trim tool. I was able to lay under the car and reach the factory connector. I could hold both ends securely and pushed together until I heard a click. The picture supplied for fuse and relay placement was useless. No matter how I oriented it I could not make it look like mine. I attached a picture of my fuse box and labelled the locations with red wording. Also I could not get the relays to fit so I thought perhaps they sent the wrong kit as there were 3 relays and only needed 2. But turns out all I had to do was turn the relay 90 degrees. It seems like it would fit either way but would not snap down into place unless oriented correctly.
Great instructions and everything needed included in the kit.
The video for this harness is very informative. Comes with everything you need to get you and your trailer on the road. Quality product.

Timothy
8/16/2026
Working great. No problems
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Ron P.
8/5/2016
Nice follow up! Hitch and wiring worked great, service was super! Ive told others about etrailer.