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Adding trailer wiring doesn’t have to mean cutting or splicing wires. The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package – 7-Way Trailer Connector plugs straight into the existing factory ports. It’s a complete setup with the harnesses and relays needed to activate the tow package, so everything fits right where it should.
This harness gives you a fully functional 7-way trailer connector with all the essential circuits—running lights, turn, stop, reverse, electric brake controller output, 12-volt power, and ground. Wire colors are standard for easy reference: Black – 12V Power, White – Ground, Blue – Brake Output, Red – Reverse, Yellow – Left Turn/Stop, Brown – Running Lights, and Green – Right Turn/Stop. It’s the same USCAR-style 7-blade connection used across most replacement sockets.
Everything about this kit works with the factory tow-ready setup. The main harness plugs in behind body panels and under the vehicle for a clean, protected install. The included relays drop into the factory slots to power up your trailer lighting and towing circuits just like the OEM configuration. There are no loose wires hanging down or extra drilling needed.
Because it uses a standard 7-way connection, you can easily replace or upgrade sockets later with options like the Pollak #PK11893 or other USCAR-compatible connectors. Each wire is color-coded and sealed for dependable contact, making it easy to troubleshoot or maintain if you ever replace components down the road. Once installed, it’s a tough, ready-to-use link between your tow vehicle and trailer.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Matt W.
7/7/2019
After a year of using this product, I have had no issues. Everything has been working as expected.
Victoria H.
3/19/2025
Seems like everything worked out smoothly Richard! Towing anything fun?
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Matt W.
7/7/2019
After a year of using this product, I have had no issues. Everything has been working as expected.