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Wiring a trailer doesn’t have to mean cutting into the factory harness. This Curt T-Connector uses a plug-and-play design that connects directly to existing vehicle plugs. There’s no guessing, no splicing, and no need for extra parts. Just plug it in line with the tail light wiring and the 4-way flat connector is ready to go.
Modern vehicles use sensitive lighting systems that can be damaged by extra load. This harness includes a powered converter that draws power directly from the battery instead of the tail light circuit, keeping the vehicle’s electrical system safe while delivering full lighting power to the trailer.
The 4-pole flat connector provides running lights, turn signals, and brake lights—everything needed for a basic trailer hookup. It’s the standard connection used on most small and mid-size trailers, so you’re set up for the essentials right out of the box.
With its hidden, vehicle-end connection and neat wire routing, this harness keeps things looking stock. The plug and lead design makes it easy to stow or access the connector when you need it while keeping the wiring protected from dirt and moisture when not in use.

Customer Satisfaction Score:
88% were satisfied with this product
12% of customers were not satisfied
Ratings & Reviews
Product came quick and hooked up east, no issues, very happy!
Worked exactly as expected.
Bonjour votre produit est excellent,aucunes modifications est nécessaire,le câblage du véhicule reste d’origine
Et le fait de prendre le 12 volts directement de la batterie rend indépendant ce nouveau circuit
Merci et bravo pour votre produit
Tire is in amazing shape compared to what is on my trailer, I should have bought two...
Absolutely everything is included and great instructions. The only way it could be better is if it were self-installing!
Simple and quick plug and play hook up definitely worth the purchase, way better off than trying to splice everything in with a cheaper setup.
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Anthony
1/21/2018
Works great have not had any problems