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What is the Wire Gauge Used in Curt 5th Wheel/Gooseneck Wiring for 2015 Ford F-250


I have just purchased a 2015 F250 that has a towing and camper package. The camper is a slide and has a seven pin connector but does not use the wire for the brake. The black wire and the white wire are 10ga. What is the wire ga on the harness.


Helpful Expert Reply:

I spoke with my contact at Curt about wiring harness # C56070. He said that there are 12 to 14 gauge wires used. The 12 volt and ground wires would be the larger 12 gauge.

Hardwire harness # 319-S7-08 uses 10 gauge for the ground and auxiliary power, 12-gauge for brakes and 14-volt circuits for the other 4 functions. But the difference between 10 and 12 gauge wire for this application is not going to be a problem so I would stick with the custom harness # C56070.

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