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Recommended Flat-Tow Wiring Harness for a 2019 Ford F-150


Hi, We own a 45 ft motorhome and need to tow a Ford F150 sports 4x4. Is this the right electrical cable 7 way to 4 way


Expert Reply:

In order to flat tow a 2019 Ford F-150 you will need a number of components (which I have attached for you below) and this does include a flat-tow wiring harness. The flat-tow wiring harness will take input from the motorhome's lighting signals and then apply these to the towed vehicle.The flat-tow wiring harness is going to be composed of two components, the umbilical which bridges the gap between the tow vehicle/toad and the trailer side flat-tow wiring harness which is what gets spliced into the toad vehicle's tail lights and connects to the umbilical. For this, the best all inclusive option we have is the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267.

Roadmaster Direct-Connect Base Plate Kit part # RM-524431-5
Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar part # RM-676
Roadmaster Brake-Lite Relay Kit for Towed Vehicles part # RM-88400
Blue Ox Patriot Portable Braking System part # BLU37TR
Roadmaster Battery Charge Line Kit for Towed Vehicles part # RM-156-25

The Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat part # HM47065 is simply the umbilical and only half of what is needed.

expert reply by:
Conner L

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