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When you’re ready to wire up your trailer lights, this harness makes the job simple. The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package – 4-Pole Flat Trailer Connector plugs right into the existing factory tow package port. There’s no splicing or wire tracing needed—just connect it and you have a working 4-way flat trailer plug ready for running lights, turn signals, and brake lights.
This harness hooks up to the square connector provided by the factory tow package, so you can mount it neatly with accessories like a 4-Pole Flat Bracket or No-Drill Long Bracket if you want a tidy finish. It keeps everything organized and out of the way while protecting your wiring from road grime and snags.
By plugging directly into the vehicle’s tow package wiring, this harness delivers a strong, uninterrupted signal to your trailer lights. You get consistent power for every trip—no loose connections or guesswork. Once installed, it’s ready whenever you are.
If you decide later to add a brake controller or 12V line, this same harness can serve as the lighting input for an upgrade kit like a 7-way adapter. That means you can start with the basics now and expand your setup later without having to redo your wiring.
Customer Satisfaction Score:
86% were satisfied with this product
14% of customers were not satisfied
Ratings & Reviews
Rui A.
7/3/2014
Very good
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Carl
12/6/2022
it is great. Well made, water tight NOO SHORTS in the electrical system. You can tell whomever designed this has used them before.