What Gauge Wire Does The Wesbar # 20016 5-Pole Vehicle End Trailer Connector Use  

Question:

Expert Reply:

The Wesbar # 20016 5-Pole Flat Vehicle End you referred to uses 18 gauge wire.

The yellow wire carries the left turn signal/brake lamp, the green carries the right turn/brake lamp, the brown carries the running light signal, the white wire carries the ground and the blue wire is connected to the reverse light circuit on the vehicle which then sends a signal to the hydraulic coupler to disengage the trailer brakes, so the vehicle can back without actuating the surge brakes.

expert reply by: Mike L

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