The 7-Way to 6-Way Trailer Connector Adapter from Buyers Products solves a mismatch between your truck-side and trailer-side connector hardware by easily converting a 7-way flat pin to 6-way round pin connector.

The adapter is made of durable and weather-resistant plastic. It also includes a built-in connection latch and LED tester.
 
Converts from a 7-way flat pin to 6-way round pin connection.
Solves a mismatch between your truck and trailer connection hardware.
Durable, weather-resistant plastic construction.