How to Wire 5-Way Wiring Harness on Trailer to 7-Way Connector
Question:
I bought a 5 way wire harnass with red wire instead of blue wire. Can i use the red wire for electric brakes? Wire is for a 18 foot stock trailer.
asked by: David N
Expert Reply:
It sounds like you're trying to wire your 5-way wiring harness into a 7-way connector like the # PK12706. On your typical 5-way wiring harness the blue wire is for the reverse lockout. I'm not entirely sure what wiring harness you have, but assuming the red wire was intended for the same function it is probably 18 gauge wire so I wouldn't use it for the electric brakes.
At a minimum you want 12 gauge wire for the brake output, with 10 being our recommended choice. Assuming you have the other functions you need with the rest of the wires you could add # 10-1-1 in place of the red wire for your brake output.
Products Referenced in This Question
Product Page this Question was Asked From
Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- Plug Only
- 7 Round - Blade
- Pollak
more information >
Continue Researching
- Article: Trailer Wiring Diagrams
- Q&A: How To Plug 1997 Lance Truck Camper Into 7-way Connector On 2016 Ford F-250
- Q&A: 7-Way Trailer Plug Adapter or Compatibility with Lance Slide-In Truck Bed Camper
- Article: How to Install E-Track in 3 Easy Steps
- Q&A: Which Curt Trailer Hitch is a Fit for 34 inch Wide Trailer Frame
- Q&A: Recommended Camper Tie Downs for a 2023 Ford F-250 Regular Cab With 8' Bed
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Recommended Camper Tie-Downs For A 2024 Ford F-350
- Article: How to Choose the Right Trailer Hitch Class
- Article: Our Team Picked The Best Camping Gear of the Year - Here Are Their Top Choices
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers
- Q&A: Replacement Margay Wheel in Gunmetal Gray for ALCOM Stealth Car Hauler
- Q&A: Supplemental Braking System for 2018 Jeep Wrangler JL with Spartan K2 Chassis with Safe Haul Air