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Wiring a trailer can be messy if you have to cut or tap into the factory wiring, but this Curt T-Connector skips all that. It plugs in behind the tail lights to give you a working 4-pole flat trailer connector. No splicing, no tracing wires—just plug in the connectors, secure the ground, and you’re ready to tow.
The 4-flat connector powers the essentials—turn signals, brake lights, and running lights—so your trailer stays visible and compliant on the road. It’s the standard connection for small and mid-size trailers and keeps everything working in sync with your vehicle’s lights.
Some wiring kits require you to run a line all the way to the vehicle’s battery, but not this one. The Curt harness draws power directly from the tail light circuits, so setup is faster and easier with fewer wires to route.
Running light or signal problems often come down to poor grounding or corroded contacts. This harness secures firmly to a clean metal surface for a solid ground and uses weather-resistant connectors that keep the signal steady. That means fewer issues with blown fuses or flickering lights down the road.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Good product and very good shipping. thanks
Very Impressed with t Justin
Works great, truely plug & play.
Very easy to install.
Works perfectly
Great products super fast shipping!
Fit perfect and easy instruction Les and great follow up by E-Trailer as always
Everything was just as described. Easy to install. Fast shipping.
Great connector, easy to install.
Works great, plug and play installation.
Used to pull kayak on trailer with small car instead of pickup due to high gas prices. Works great so far.
fast delivery excellent quality and worked perfectly. always a good experience with etrailer
Best prices period! Super fast shipping. Purchased a hitch and wiring. Very well constructed, high quality and extremely durable. Highly recommend etrailer.com. I will be a repeat customer.
This wiring loom is Great! It really is literally just "plug and play" - Very easy to install. This is the way to go unless you require something unusual or custom. With my 2008 C6 I didn't have to go into the interior of the car to find a ground. Mine was right on the frame just inside the the bumper and easily accessible with the tail light lenses removed. You might want to buy and put some wiring protector around the loom as it passes near the exhaust area just in case.
Installation was easy and it works perf ectly.
This wiring harness fit perfect and was very easy to install, the hardest part is removing the interior trim pieces in the trunk to get to the tail light assembly. I have been using this connector for over a year now without any failures on the lights of my boat trailer
Had my doubts about the harness when I ordered it,but just as your video says very easy to install and solved my problem!! Thank you e- trailer!!
Hello etralier. I wanted to take the time and say thank you for everything! I was on a deadline returning to Washington from Missouri. The hitch and wiring harness I ordered for my 2009 Ford Focus were top quality as advertised. I received the hitch promptly as guaranteed within 24 hours. The instillation went exactly as your video showed, which was very helpful by the way. I was particularly impressed with the wiring harness. It was literally plug and play after I figured out how to remove the tail light assemblies. A video on that would be helpful. I towed an overloaded 4 by 8 foot U-Haul trailer 2000 miles and did not have one problem with your product!!! I will definitely be looking at your other products in the future.
Sincerely Dave.
David H.
10/4/2018
Every thing continues to work great! Thanks
Great service, great product, good timing. Thank you
Fairly easy installation when you put the ends in through the tail light hole it's pretty tight some of them I had to turn if that makes sense to get them to fit through the hole. Everything lined up good worked okay fairly fast shipping
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Tony B.
5/20/2024
Time flys by, wiring harness has now been installed for a year now, was easy to install and have no issues at all, still working fine! No complaints at all, great product!!