How To Install New 4-Way on Trailer with Brown/Green and Brown/Yellow Wires

Published 04/05/2023

Question:

My trailer has green, yellow, brown/yellow and brown/green wires. My new connector has white, brown, yellow and green. Which wire goes to which wire? Thanks

asked by: Don

Expert Reply:

It sounds like you have a pretty standard wishbone trailer wiring harness and in which case, the wire colors are as follows:

green= right stop/turn
yellow= left stop/turn
green/brown= right running light
yellow/brown= left running light

The confusion for you is likely the two brown wires. If you are just installing a standard trailer connector like the Hopkins Endurance Easy-Pull Harness part # HM38134 you would simply attach the green/brown and yellow/brown to the single brown wire at the connector.

expert reply by: Conner L