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Wiring up a trailer can be a headache if you have to splice into factory wiring. The Curt T-Connector makes it simple with a true plug-in setup that connects directly behind the tail lights. It’s nearly a complete plug-and-play install—no wire cutting needed. Just plug the two pigtails in place, ground the white wire, and you’re ready to go.
Instead of drawing power from your vehicle’s light circuits, this harness uses a powered converter that runs its own 12-volt line to the battery. That design keeps the vehicle wiring protected from overload and helps the trailer lights run bright and consistent. The black power wire routes along the brake lines to the engine bay for a secure and tidy setup.
The 4-flat connector gives you exactly what most trailers need—running lights, turn signals, and brake lights—all in one weather-resistant plug. It’s built for reliability so you can hook up quickly and hit the road with confidence.
If your vehicle didn’t come ready to tow, this harness fills in what’s missing. The included powered converter and vehicle-end connectors work together to give you a full lighting setup without relying on factory tow wiring. It’s a straightforward way to get trailer lights working right the first time.

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