Brake Controller And Wiring For A 2017 Ford F-150 With A Factory 4 Pole Plug
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

Products Referenced in This Question
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 4 Round
- 5 Round
- 6 Round
- Tow Ready
more information >
Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Redarc
more information >
Mounting Bracket and Installation Hardware - Pollak 7-Pole, RV-Style Trailer Connector - Vehicle End
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 7 Round
- Pollak
more information >
Redarc Tow-Pro Liberty Brake Controller - Dash Knob - Up to 2 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Dash-Mounted Knob
- Hidden
- Up to 2 Axles
- Indicator Lights
- Redarc
more information >
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 7-Way Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 7 Round - Blade
- Tekonsha
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Shop: T-One Vehicle Wiring Harness with 7-Way Trailer Connector
- Shop: Towing Mirrors
- Video: Beginner’s Guide to Installing the CIPA Custom Towing Mirrors on a 2017 Ford F-150
- Shop: Brake Controller
- Q&A: How to Install a Brake Controller on a 2017 Ford F-150
- Video: T-One Vehicle Wiring Harness with 7-Way Trailer Connector Review
- Shop: Trailer Hitch
- Shop: Kodiak Disc Brakes - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 8K - E-Z Lube - Dexter
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Search Results: 56458
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Taskmaster Solid Center Wheel w/ -0.19 Offset - 17-1/2" x 6-3/4" Rim - 8 on 6-1/2 - Silver
- Shop: Americana Modular Wheel w/ -0.5 Offset - 17-1/2" x 6-3/4" Rim - 8 on 6-1/2 - Silver
- Video: Americana Modular Wheel w/ -0.5 Offset Review
- Shop: CIPA Custom Towing Mirrors - Slip On - Driver Side and Passenger Side
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2016 Honda Odyssey
- Q&A: Locating Factory Brake Controller Plug on 2015 Ford F-150
- Q&A: Troubleshooting 2019 Ford F-150 Having No Power To 7-way Connector After Replacing Fuse
- Search Results: trailer door latch
- Search Results: 56378
- Q&A: Adding 7-Way to Trailer with Yellow Wire Instead of Purple
- Q&A: Where is Fuse for Trailer Brake Controller on 2016 Ford F-150
- Video: Setting up the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers on a 2018 Ford F-150
- Video: Redarc Tow-Pro Trailer Brake Controller Plug-and-Play Wiring Harness Review
- Search Results: trailer wiring
- Video: Finding the Right Trailer Wiring Harness
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
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.