Question:
Hello, I need an adapter for my 7 way round pin plug to attach to my trailer. I need the brake lights and turn signals to work . was there even an adapter for this old plug or do I need to modify ?
asked by: ERICK V
Expert Reply:
The 7-way round connector is odd as it typically means the vehicle has the stop lights and turn signals on separate circuits which is the opposite of what trailer wiring has so you'd need to come up with an adapter since there isn't one ready-made.
If this is the case you can build an adapter using the part # RM-732 as a signal converter.
You will need a round pin male connector, # PK11702 and then the part # W787264 for a 4-way. Basically you will be splicing the converter between these two to create the adapter.
Pollak HD, 7-Pole Round Pin Connector w/Cable Guard
Roadmaster Brite-Lite Wiring Converter
Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long
Pollak 7 Pole Round Pin to 4 Pole Flat Wiring Adapter
