How to Add a 7-Way Trailer Connector to a 2007 Ford F-350 with Service Body

Question:

color code for factory side wiring going to seven pin trailer connector 2007 Ford F350 dually tool body truck.

asked by: Mike

Expert Reply:

I looked in the owner's manual for your 2007 Ford F-350 and they did not list the colors of the trailer wiring harness for the trailer connector. Therefore, you will need to either test each one with a circuit tester while the circuits are active or contact your local dealer for the wiring diagrams.

If you need to replace the 7-way trailer connector or add one I highly recommend using the 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket part # HM40975-11998 because it has both 4 and 7-way trailer connection points and it comes with everything needed for installation.

We have an install video of this harness on a 2008 Ford F-250 with a service body. The wire colors are shown and it may match what you have but I can't confirm.

expert reply by: Conner L