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Wiring a trailer doesn’t get much simpler than this. The Curt T-Connector plugs directly in line with the vehicle’s tail light wiring—no running a power wire to the battery required. Just attach the ground wire to a clean metal surface and you’re ready to tow.
Whether your trailer or hitch carrier has standard bulbs or LEDs, this harness is ready for it. The Curt T-Connector with 4-Pole Flat Trailer Connector #56091 is fully compatible with LED taillights, so signals work correctly without flicker or error messages.
This harness includes a built-in circuit-protected converter that isolates trailer power from the vehicle’s sensitive wiring. It helps prevent overloads or shorts from reaching the car’s electronics while still running all basic lighting functions through its 4-flat connector.
Once installed, the 4-flat connector stays tucked out of sight until you need it. When it’s time to tow, just pull it out and plug in your trailer’s wiring. It gives you running lights, turn signals, and brake lights through a simple plug that looks neat and works reliably every time.
Customer Satisfaction Score:
93% were satisfied with this product
7% of customers were not satisfied
Ratings & Reviews
Easy install. Exactly is as described.
Works!
Works great, installs easy!
Plug & play, works great!
Works as intended. No reason to need more than a four pin on a small sedan.
Everything works the way its supposed to! Setup was quick and painless
These guys are good. One order, problem solved. Right part, good delivery. Couldn't be happier with this group.
Nicole was great but service from installers sucks. I called multiples and if you didn't order from them they wouldn't help. One I even spoke to before finalizing my offer cancelled doing service.
Product came on time and was a perfect fit. Minimal effort to install and worked perfectly. Took maybe 15min to get it all set up and tested.
Jon
7/20/2018
All good. Still working like a champ.
This product was the most put together plug and play Harness everything you need no searching for parts and or screws,wire ties nothing it's all included and available. Great product guy two thumbs up!
This harness was pretty easy to connect to oem points as per instructions. I recommend this product.
The hitch went on easily and I'm very plese it and the great service I received from etrailer.com. Would buy from them again.
I’ve had this wiring harness about a year it was Easy to install and works as it should.
The process of ordering was clear and straightforward. I received the product within a week.
I have not installed the hitch or harness yet. The hatch looks solid and very well-built.
etrailer vehichle specific videos made this trailer reciever (two person job) ,and trailer wiring harness a breeze! Will definitely be recommending etrailer recievers in the future. Thanks you for your quality!
Literally plugs into the cars wiring harness at the brake lights. Directions are good but the video on this web site was great for seeing how things come apart. Product appears to be well made and performs perfectly.
The product quality can speak for itself, but i was extremely satisfied with the turn around time. i received my package in plenty of time for a planned camping trip. Also your customer service was top notch. i got a phone call checking my address for shipping and thought it was really great that someone was actually handling my order with care and it wasn't just me and a computer. So thanks alot. I'll for sure be using this service in the future
Follow the installation instructions and everything goes together pretty nicely
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Jenny N.
11/19/2021
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