Trailer Socket Plug Tow Bar Electrics Connector Towing Wiring Adapter 12V 7Pin
(Plate Lamp); PIN 6:Red Wire (Brake lights); PIN 7:Black Wire (Left/H Tail & No. Plate Lamp). Trailer Hitch. This is a 7 Pin connector socket design for vehicle use. It is made of high quality plastic material for durable and long lasting use.