7-Pin 12V Trailer Plug, 7-Pin to 7-Pin 2m Trailer Wiring Harness, Trailer Plug Adapter for Truck, RV, Caravan - Black

【7-Pin Trailer Plug】: Connects and conducts electrical signals between the tractor and the towed vehicle, establishing a stable signal transmission connection between the vehicle and the trailer and easily synchronizing the trailer's signal lights.
【High-Quality Materials】: The trailer wiring harness is made of oxygen-free copper, which is heat-resistant and flame-retardant, improving elasticity, abrasion resistance, aging resistance, etc. that the trailer extension cable has.
【Easy Installation】: With the trailer extension cable, trailers and additional trailers can easily connect all electrical devices; plug-and-play design to power your caravan, trailer, and van.
【Application】: Trailer, caravan, motorhome, tractor, car, truck, semi-trailer, container ship, utility vehicle, freight train, etc.