Brake Controller And Wiring For A 2017 Ford F-150 With A Factory 4 Pole Plug
Published 11/11/2020 >
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Question:
I have a 2017 f-150 XLT with factory 4 pin trailer connections. I have a 7 pin connection to install on the bumper already. The truck does have a tow-haul mode but I’m unsure if I need to order any additional wiring or connections to ensure that the parts Part Numbers: RED24FR,331-TPH-007 will plug in and operate properly once I install the 7 pin trailer connection on the truck. I’m only looking to tow a 14’ dual axle trailer occasionally with my UTV on it but some of that travel will be off-road so I wanted to ensure I would have full functionality of this Redarc brake controller.
asked by: Sean
Helpful Expert Reply:
If you have a factory 4 pole on your 2017 Ford F-150, in order to get a 7 pole plug to work with your wiring I recommend the T-One Vehicle Wiring Harness with 7-Way Trailer Connector Item # 118283. You mentioned that you have a 7 pole however, the back of the 7 pole will not be compatible with the way your factory wiring adapts from the truck to the plug. This kit provides the adapter for the 7 pole plug. One end of the wiring has pins to snap into the adapter for the 7 pole. The other end has two adapters. Once you follow the factory 4 pole to the adapter on the factory wiring, disconnect the two ends and add the new wiring in place. This allows you to maintain your factory 4 pole and provides you with the 7 pole with out having to splice into any factory wiring. As far as the brake controller, the Redarc Tow-Pro Liberty Brake Controller Item # RED24FR is a great option and the Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers Item # 331-TPH-007 is the correct brake controller adapter to fit your vehicle. I also recommend a Mounting Bracket and Installation Hardware - Pollak 7-Pole, RV-Style Trailer Connector - Vehicle End Item # PK12711U and a No-Drill Mount Bracket, Long Item # 18136 to give your 7 pole a more permanent mounting location.
I have provided a link to a video to walk you through how to install the wiring for your 7 pole plug

Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 7-Way Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- No Tow Package
- 7 Blade
- Plug and Lead
- Plug-In
- Visible
- Tekonsha
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Sean
11/11/2020
I have a 2017 f-150 XLT with factory 4 pin trailer connections. I have a 7 pin connection to install on the bumper already. The truck does have a tow-haul mode but I’m unsure if I need to order any additional wiring or connections to ensure that the parts Part Numbers: RED24FR,331-TPH-007 will plug in and operate properly once I install the 7 pin trailer connection on the truck. I’m only looking to tow a 14’ dual axle trailer occasionally with my UTV on it but some of that travel will be off-road so I wanted to ensure I would have full functionality of this Redarc brake controller.