Adapting 4 Pin Trailer Connector on 2005 F150 to 7 Pin Connector on Horse Trailer
Question:
Thinking is buying a 2005 Ford 150 Lariat - has towing package and 4 pin trailer wiring. I will also be purchasing a horse trailer. If the horse trailer has brakes and 7 pin wiring, will I have to have the truck re-wired? Should I just look for a truck with 7 pin trailer wiring? Thanks!
asked by: B. T
Expert Reply:
If you really like this truck, adapting the 4-way to work with the connector on the horse trailer is pretty simple.
Your truck already has the connection port under the dash for a brake controller, and the output wire for the brake voltage will be run to the rear of the truck along the drivers side frame rail. Its a blue wire, and usually terminates near the back wheel.
Are you sure that the horse trailer has the 7-way blade connector? Horse trailers typically have the 6 pin. In any event, you will need either the 4 to 6-way adapter, part # 37175 or the 4 to 7-way adapter, part # 37185. Each of these adapters would plug into your existing 4 way connector, with the remaining wires connecting to the brake controller output, ground connection, 12 volt accessory power and the reverse light circuit (if needed).
Products Referenced in This Question
Adapter 4 Pole to 6 Pole and 4 Pole Trailer Wiring Adapter
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 4 Flat
- Plug and Lead
- 6 Round
- 4 Flat
- Hopkins
more information >
Adapter 4-Pole to 7-Pole and 4-Pole
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 4 Flat
- Plug and Lead
- 4 Flat
- 7 Round - Blade
- Hopkins
more information >