4 Wire Flat 4 Pin Trailer Wiring Diagram

The red and blue wire can be used for brake control or auxiliary. It consists of directions and diagrams for various varieties of wiring te...

4 Pin 4 Wire Trailer Wiring Diagram

Can also be used as custom wiring on trailers with 3 light wire systems. 4 way trailer connectors are. 16 Great 7 Way Trailer Plug Wiring...