Color Code Functions of Hopkins 7-Way Trailer Wiring Harness

Updated 04/03/2017 | Published 04/01/2017

Question:

i have a loadmaster 33ft trailer. i purchased the H20043 to replace the 7 way connector on the trailer. on the trailer there is no red wire can i still attache it without the red wire

asked by: Robert S

Expert Reply:

The Hopkins # H20043 uses the following wire coloring:

White Wire - Ground
Red Wire - Left Turn and Brake
Brown Wire - Right Turn and Brake
Green Wire - Tail Lights
Blue Wire - Brake Power
Black Wire - 12 volt (hot lead)
Yellow Wire - Aux.

I recommend wiring your trailer by function and not color. If there is a circuit you don't need for any reason it doesn't have to be connected.