Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
This item does not fit your vehicle
2011 Acura CSX
These items fit your vehicle
2011 Acura CSX
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Wiring up for trailer lights doesn’t have to mean tapping into factory wires. The Curt T-Connector plugs straight into the vehicle’s existing wiring with matching connectors. It’s a true plug-and-play setup that keeps everything clean, sealed, and hidden once installed. No splicing or wire tracking—just connect, secure, and you’re ready to tow.
This harness gives you a standard 4-flat connector that powers your trailer’s running lights, turn signals, and brake lights. It’s the most common setup for small and mid-size trailers and makes hooking up simple. The design keeps a solid connection for dependable lighting every time you tow.
Built with an integrated powered converter, the harness draws power directly from a 12-volt feed instead of overloading the vehicle’s light circuits. That means your trailer gets full brightness while your vehicle wiring stays protected. A properly seated 15-amp fuse in the engine compartment supplies the converter with the necessary 12V operating power.
If trailer lights don’t come on, this setup makes it easy to check power along the line. Use a circuit tester or multimeter to confirm there’s power on both sides of the fuse in the harness. If power isn’t reaching the converter, look for a bent or corroded pin in one of the connectors or make sure the fuse is seated in the correct location—common fixes that get everything working again fast.
Once connected, the harness tucks neatly behind panels and through existing grommets for a hidden finish. The weather-tight plugs keep moisture out and help maintain a factory look with no exposed or dangling wires. It’s a tidy solution built to last through seasons of towing.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
James
4/26/2017
Great!
Danny
4/21/2022
Nothing has changed which is good. Loved it before. Still love it.
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Mike L.
5/14/2019
The manufacturer specifically designed the harness so the connector would be deployed from the interior of the vehicle when needed. This way, the connector is protected from damage when its not being used. This is typically done on passenger vehicles and smaller SUVs that arent used as full-time towing vehicles.The rear hatch of your vehicle has weatherstipping thats thick enough that the wire for the trailer connector wont be damaged as long as you avoid the latch area.