Does your vehicle have a 7-Way Round Socket with round pins and your trailer have a 7-Way Round Plug with flat spades? This adapter is your answer. It converts the vehicle’s 7-Way Round Socket with round pins to a 7-Way Round Plug with Flat spades. Simply plug the adapter in to the 7-Way Round Socket and you are ready to plug in your trailer’s 7-Way Flat Spade Plug.
- This adapter is wired for use with Heavy Duty Trucks.
- The wiring code is shown above in the pictures.
- Will not work with Semi Tractors or Semi Trailers
- 87P on one end with a 77S on the other end.