7-way trailer plug wiring diagram

7 Way Diagram AJ's Truck & Trailer Center. The 7-Way Trailer Plug is around 2″ diameter connector that allows an additional pin for an auxiliary 12-volt power or backup lights. It is usually used for towing heavy-duty cargo trailers,. make sure you are looking at the plug the way the diagram is showing you. Having the wires backward will cause problems. Keep in mind that it isn’t.

7 Way Diagram AJ's Truck & Trailer Center
7 Way Diagram AJ's Truck & Trailer Center from pg-cdn-a2.datacaciques.com

The minimum suggested wire size for a 7-way trailer plug is 16 gauge for the turn signals, brake lights, reverse lights, and running light wires. The suggested minimum for the ground,.

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