PN#58040 SKU#5452 4 Way Flat Connector Socket With 60″ Wires (Vehicle Side). Splices into vehicle wiring to provide a connection for a trailer plug. 4-way flat output connects tail lights, brake lights and turn signals. Constructed with bonded 16-gauge wires and durable molded rubber. Features 60″ of color-coded wire for easier installation. Designed for use on vehicles and trailers with two-wire systems.