CURT 7' 7-Way RV Wiring Extension for Truck Bed — Plug-and-Play, Preserves Factory Rear Socket

CURT 56070 is a 7-foot plug-and-play 7-way RV blade wiring extension that brings a trailer connector into your truck bed while keeping the factory rear socket active.

When you tow 5th wheel or gooseneck trailers, you often need a dedicated connector in the bed of the truck without losing the bumper-mounted socket for conventional trailers. The CURT 56070 wiring extension provides a factory-friendly solution by plugging into the OEM harness and routing a 7-way RV blade socket into the truck bed. It requires no cutting or splicing and preserves the original rear connector, giving you flexibility between receiver hitches and specialized bed-mounted hitches.

How does this extension fit into my truck’s existing wiring?

The harness is designed to mate with the vehicle's original equipment wiring—no permanent modifications required. It plugs directly into the back of the OEM connector, then routes through the truck body to a bed-mounted socket, preserving the rear bumper connector for other trailers.

• Plugs into factory wiring—no cutting or splicing
• Routes through truck body to a bed-mounted hole
• Keeps rear bumper 7-way functional
• Designed for compatible Chevrolet, Dodge, Ford, GMC, Nissan, Ram and Toyota models

What circuits does the 7-way RV blade carry for trailers?

The 7-way RV blade consolidates essential trailer circuits into one connector so your 5th wheel or gooseneck gets the signals and power it needs. It handles lighting, turn/brake signals, reverse, trailer brakes and auxiliary power for powering onboard trailer accessories.

• Tail and running lights
• Left and right turn/brake signals
• Backup/reverse light circuit
• Electric trailer brakes and 12V auxiliary power

Is installation complicated and will I need special tools?

Installation is straightforward for anyone comfortable locating the OEM connector and routing a cable through an existing grommet or factory access point. The harness uses a plug-and-play approach so specialized cutting or splicing tools aren’t necessary, but basic hand tools and a helper for routing can speed the job.

• No cutting or splicing—plug-and-play design
• Requires access to OEM connector behind bumper area
• Use basic tools to route and secure the cable in the bed
• Refer to vehicle-specific fitment to locate factory pass-throughs

Which trucks will this CURT 7' extension work with?

The CURT 56070 is built for select truck models from major manufacturers; verify fitment to ensure compatibility with your year and trim. It’s intended for pickups that support adding a bed-mounted 7-way socket while maintaining the factory rear connector for other towing setups.

• Compatible with certain Chevrolet, Dodge, Ford, GMC, Nissan, Ram and Toyota models
• 7-foot length reaches standard bed placement from rear harness area
• Packaged ready to mount in truck bed hole
• Check vehicle application list for precise fitment details

Who is this for: The CURT 56070 7' 7-way RV wiring extension is ideal for truck owners who tow both conventional trailers and 5th wheel or gooseneck rigs and need an in-bed connector without sacrificing the bumper socket. It suits DIY installers and professional shops who want a reliable, reversible wiring solution that maintains OEM wiring integrity, supports full trailer lighting and braking functions, and simplifies switching between hitch types.