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Can 7-Way and 4-Way Both Install on Trailer for Separate Wiring Circuits


can I wire up both a four wire system and a seven wire system on a utility trailer and use either plug separately? For example have a 4 wire to rear lights only and a 7 wire to side markers, rear lights, and the electric brakes. Only one will be connected to the truck at a time.


Expert Reply:

When you say rear lights do you mean like utility lights so that you could see in the dark? If so you could just use the 12 volt accessory circuit of the 7-way to accomplish that. But aside from that you certainly could have two different connectors on your trailer for two different sets of lights.

For a 7-way plug all you'd need is the part # 277-000143 and then for a 4-way part # A25W2GWB for 25 feet.

expert reply by:
Jameson C

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