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CURT Extension Harness
This item requires Vehicle Fitment, please select Vehicle first!
OR if you know the Part Number you need, select from Options below.
OR if you know the Part Number you need, select from Options below.
Part #:CUR-57010
Availability:In Stock
Free Shipping
Rating: 
ONLY Fits F-350 And F-450 Super Duty Cab & Chassis Models. Fits All F-150 And F-250 Super Duty Models. Manufacturer Rated Difficult To Install.
Price: $131.95
- Routes a 7-way RV blade socket into truck bed while retaining use of rear socket
- Simple plug-and-play design eliminates the need for cutting or splicing
- Allows for easy connection of 5th wheel or gooseneck wiring
- 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
- 7' or 10' extension with right-angle plug for easy installation
- Spring-loaded dust cover keeps connector clean when not in use
- Slit loom keeps wires contained and well protected
- Some applications feature neoprene well nuts isolate steel bolts from aluminum surfaces.
- Dual-Output Application: Routes a dual-output socket into truck bed while retaining use of rear socket. Provides standard 4-way flat and 7-way RV blade. 4-way flat output connects tail lights, brake lights and turn signals.
There is nothing like the luxury and power that go along with heavy-duty towing. 5th wheel RVs offer a deluxe, home-away-from-home experience unlike any other, while gooseneck trailers possess a strength that far surpasses most other trailer options. As with any trailer, however, 5th wheels and goosenecks must be equipped with the proper lighting and electrical systems, and tend to require even more complex connectors than a standard receiver-type trailer setup. Make things simple with a CURT 5th wheel / gooseneck extension harness. These wiring harnesses are designed to put an extra connector socket in the bed of your pickup truck while still retaining power to the rear connector socket mounted on your bumper or trailer hitch. This is done by plugging into the back of the existing original equipment (OEM) harness and routing through the body of the truck to a hole in the truck bed, providing a connector that is ready to accommodate your 5th wheel or gooseneck trailer. This CURT extension harness is designed to work with 7-way RV blade connectors and comes in a length of 7' or 10' of wire. When you need a towing electrical solution that allows you to switch back and forth between your receiver hitch and specialized trailer hitch, CURT gets you plugged in.
California Residents: Prop 65 Warning
Customer Reviews
CURT Extension Harness fits the following vehicle(s):
- Part Number fits: CUR-57010 (36483)
- 2015 Ford F-150
- 2016 Ford F-150
- 2017 Ford F-150
- 2018 Ford F-150
- 2019 Ford F-150
- 2020 Ford F-150
- 2021 Ford F-150
- 2022 Ford F-150
- 2023 Ford F-150
- 2024 Ford F-150
- 2017 Ford F-250 Super Duty
- 2018 Ford F-250 Super Duty
- 2019 Ford F-250 Super Duty
- 2020 Ford F-250 Super Duty
- 2021 Ford F-250 Super Duty
- 2022 Ford F-250 Super Duty
- 2023 Ford F-250 Super Duty
- 2024 Ford F-250 Super Duty
- 2017 Ford F-350 Super Duty
- 2018 Ford F-350 Super Duty
- 2019 Ford F-350 Super Duty
- 2020 Ford F-350 Super Duty
- 2021 Ford F-350 Super Duty
- 2022 Ford F-350 Super Duty
- 2023 Ford F-350 Super Duty
- 2024 Ford F-350 Super Duty
- 2017 Ford F-450 Super Duty
- 2018 Ford F-450 Super Duty
- 2019 Ford F-450 Super Duty
- 2020 Ford F-450 Super Duty
- 2021 Ford F-450 Super Duty
- 2022 Ford F-450 Super Duty
- 2023 Ford F-450 Super Duty
- 2024 Ford F-450 Super Duty