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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required.
Features:
Installation
This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness.
Once installation is complete, the 4-way 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.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
We misread the instructions and threaded the wires wrong the first time. Just a minor glitch. Thank goodness I had a 4 wire tester and found we had left and right reversed. Other than that, it works excellent.
Very easy to install and worked great.
Easy installation my only problem, I had to chase the the welded threaded nuts on the SUV. Looks good. I can now hook a trailer up for small hauling jobs
Hitch fit perfect. A friend and I got it installed easy once I retreaded the weld holes on the SUV. Five and a half years really corroded them. Wiring was smooth also. Will buy from here again
Great idea , no splicing of wiring !
Everything works perfect and was very easy to install
Very, very easy install on both the hitch and trailer wiring harness.
Great product ,excellent fit ,easy install with help . Customer service is the best will recommend e trailer to everyone that needs hitches.
Thank you mike S for your help !
I found the products I purchased from etrailer to be very good, easy to install at a reasonable price . I was pleased with my customer service from placing the order to delivery and follow up. I highly recommend etrailor and next time a purchase auto accessories I will start with etrailor.
Thank you for such a good product. I can get around on my scooter due to this hitch and wiring. I'm mobile again and not stuck in the house. :)
Brooke M.
7/7/2025
Being stuck in once place gets old really quickly! I'm so happy to know you're able to get out when you like again :)
Good service is how a company reacts when things don't go quite to plan. Placed order for hitch, ball mount and wiring harness 8/5. Rec'd 8/7. But hitch flanges were bent up a bit. Chatted and Lakeiya, determined a replacement was in order. It shipped 8/7, rcv'd 8/9/ Wow!! 2 orders rec'd in 5 days. Printed ret'n label and got the old one to UPS for return. Everything fit great, got it all installed and looks great.... Thanks....
Got my trailer hitch today and thing went on without a hitch. All ready cleaned out the the 12 mm weld nut threads with a tap. That was a three hour job by itself. Because the threads were all ready cleaned out with a tap (there is no way a wire brush and penetrating oil would ever work). The assembly went on without a hitch. Probably took me 2 hours at a relaxing pace. Used anti- seize on all threaded fasteners.
Very easy install! Works great!
Fantastic perfect fit easy to use and install 30 min install including reading the owner's manual for conflicts there were none. Trailer hitch and wiring fit my 2012 GMC Terrian like it was from the factory
I installed a Curt hitch receiver on my new 2016 GMC Terrain. I then installed the wiring harness and it couldn't have been any easier. Took me about 20 minutes to install the harness. If all my projects were this easy, I would be a happy camper. Including photo of rear of the car with hitch. The harness connector is hidden up under the bumper cover so that it isn't just hanging down.
I ordered this hitch & wiring kit for my 2012 GMC Terrain SLE 3.0 6 cylinder and it went on in less than 30 minutes! I ordered the hitch and wiring harness on Monday (Labor Day even) and the package arrived on Wednesday afternoon - WOW! Thank you eTrailer.
It's great thanks for the great product easy to install
The hitch and wiring harness arrived on time. One of the vertical brackets on the hitch had broken through the box due to UPS manhandling, but nothing was damaged. After re-tapping the welded bolts on my 2012 Terrain the hitch was on in 15 minutes. Fit perfectly and looks like it came with the vehicle. The wiring harness was hands down the easiest product that I have ever installed on any vehicle. I like how nothing needed to be cut or spliced. Took me all of 10 minutes to install. And it works perfectly! I am very happy wit the product and service I received from etrailer.
Excellent product, very easy to do. I am not a fan of cutting into existing wiring, so this kit was the answer. It took less than a hour.
The Curt 2 inch hitch for my 2010 GMC Terrain was also an easy installation. All hardware was supplied and extra for situations that maybe encountered, i.e.., bolt holes not threaded from factory. The 2010 Terrain was all bolt on. What I especially like is the fact that it is totally hidden except for the receiver.
This wiring harness is very easy to install. I had a bit of trouble getting the tail lights out of our 2012 equinox but with a a second set of hand they slipped out without doing any damage. I used extra zip ties and wire loom to help protect the wire. Be sure to keep it away from the exhaust if you have a V6 with duel exhaust tips. I modified a Curt rubber tube cover to secure the harness to the receiver. I made sure to leave extra wire in behind the hitch so that I can pull it through when I need it.
The wire harness was well engineered and manufactured. Installation was just as easy as the video and instructions said it would be!
Product arrived in a timely manner with one of the hangers fully exposed out side the box. The heavy construction of the Hitch receiver proved to be too much for the delivery process and the unit was in perfect condition. I viewed the video and started the job of installation. Took me about 1 and a half hours to complete the job.
The design of the unit was such that no drilling was required and the included fish wire was a wonder tool bringing bolts and square hole locks to the proper hole down a hollow frame. The wiring kit was super easy to install with step by step instructions and with NO cutting wires. Sorry it took so long to install. At 82 years old I have slowed a bit. Now I can pull my Jon boat to the lake. Happy Camper.
Richard
8/22/2020
Great! It was received in a short time, easy to install with great instructions and works well.
I've seen many aftermarket hitches that are obviously not built for a specific car, and they look terrible when installed. The hitch I purchased from Etrailer.com was a perfect fit for my car. It was built by Curt Mfg., and was surprisingly easy to install. I had the wiring harness installed in about 45 minutes, and it just plugs into existing wiring (no splicing). And the hitch bolted onto the car with no cutting, drilling or hammering. It was done in about an hour. The finished installation looks like it came with the new car ! The process was much less expensive than having the dealer install it.
Excellent product !!
Ed H.
6/29/2015
Still impressed with the installation and the good fit. I have hauled various stuff in my 6 by 6 trailer, up to about 2500 lbs. Works fine. Doesnt feel loose. Doesnt squeak. Had several compliments on the look and subsequent referrals.
No rust on hitch and that is a big plus. Your product out does all other hitches that I have used over the years.
This item works, came with zip ties and self tapping screw. They also have an instructional video on YouTube that was helpful. Thanks e-trailer! Now I can tow my boat safely knowing my trailer lights work properly.
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Leo
1/19/2026
It is still working great. Using to connect a 2016 GMC Terrain to a custom built kayak trailer.