Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailer's electrical functions are, you need a solid connection to keep the power flowing and ensure safety on the road. CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. This 4-way flat connector kit is designed to supply power for tail lights, turn signals and brake lights, as well as a ground connection. The connectors feature durable rubber-molded construction and each is made with standard color-coded, bonded wire. This kit includes a vehicle-end socket with 12" of wire, a trailer-end plug with 12" of wire, as well as snap locks and other installation hardware to easily splice into your vehicle's wiring system. This 4-way flat connector is compatible with all 2-wire vehicle systems.