Features
- 7' Custom Wiring Extension Harness (Adds 4-Way, 7-Way RV Blade to Truck Bed)
- Routes a dual-output socket into truck bed while retaining use of rear socket
- Provides standard 4-way flat and 7-way RV blade
- Simple plug-and-play design eliminates the need for cutting or splicing
- Allows for easy connection of 5th wheel or gooseneck wiring
- 4-way flat output connects tail lights, brake lights and turn signals
- 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
- 7' extension with right-angle plug for easy installation
- Spring-loaded dust covers keep connectors clean when not in use
- Slit loom keeps wires contained and well protected
- Factory cutout in truck bed required for installation
Watch It in Action
Official CURT video for this product line. Your exact size, model or finish may differ; check the details below.
Description
At a Glance
- Fits: 8 vehicle models – see the full list below
- Brand / Part #: CURT 56003
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. 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.</p><p>This CURT extension harness provides connection points for both 4-way flat and 7-way RV blade connectors, and it comes in a length of 7'. It is compatible with select models of Chevrolet, Dodge, Ford, GMC, Nissan, Ram and Toyota (to verify your vehicle compatibility, see the CURT application guide at curtmfg.com). 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
Fits:
- 2019-2027 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 1500 LTD
- 2020-2027 Chevrolet Silverado 2500 HD
- 2020-2027 Chevrolet Silverado 3500 HD
- 2019-2027 GMC Sierra 1500
- 2022 GMC Sierra 1500 Limited
- 2020-2027 GMC Sierra 2500 HD
- 2020-2027 GMC Sierra 3500 HD
Use the vehicle selector to confirm the fit for your exact vehicle before ordering.