CURT 7-Way RV Blade Replacement Harness 6 ft — Male Trailer-Side Plug with Color-Coded Wiring

The CURT 56601 is a 7-way male RV blade replacement harness that restores full trailer electrical functions with a 6-foot color-coded cable and durable protective sleeve.

When you tow a travel trailer, a dependable connection between tow vehicle and trailer wiring is essential for lights, brakes and auxiliary power. The CURT 56601 harness replaces a worn or damaged 7-way blade plug on the trailer side, providing the common seven circuits used for tail lights, turn signals, brake lights, reverse lights, electric trailer brakes and a 12-volt feed, plus a ground. Built for ease of installation and weather resistance, the harness keeps your trailer connected and compliant on the road.

What does this 7-way harness actually do for my trailer?

The harness supplies the standard seven electrical circuits from the tow vehicle to the trailer, enabling lighting, braking and auxiliary systems to operate correctly. As a trailer-side male plug, it replaces the end of your trailer's wiring so you can reliably mate with the vehicle's 7-way socket.

• Provides power for tail, brake, turn and reverse lights
• Feeds the electric trailer brake controller
• Delivers a 12V auxiliary/charging circuit for onboard batteries or accessories
• Includes a dedicated ground to maintain safe circuit return

How easy is it to install and wire the CURT 56601?

Installation is straightforward for anyone comfortable with basic trailer wiring: splice the color-coded conductors into your trailer's harness, protect connections, and mount the plug. The six-foot cable gives you room to route and secure the wire without tension.

• Color-coded wires match standard trailer pin functions for faster splicing
• 6' length helps accommodate different vehicle-trailer distances
• Protective plastic sleeve shields wires where they exit the plug
• Male blade design fits standard 7-way vehicle sockets on most tow vehicles

Will this CURT harness work with other 7-way connectors?

Yes — it’s designed to be compatible with industry-standard 7-way RV blade connectors, so it mates with most vehicle sockets and replacement parts. Interchangeability lets you use it as a direct swap when the trailer end is damaged or when upgrading to a fresh connector.

• Fits standard 7-way RV blade vehicle sockets
• Compatible with most aftermarket and OEM 7-way systems
• Useful as a bulk replacement or part of a wiring repair
• Male trailer-end plug intended for trailer-side mounting

How does the harness hold up in outdoor and towing conditions?

The CURT 56601 includes a molded plug and a protective sleeve that reduce exposure to moisture and abrasion at the wire exit point. While no connector is impervious to all elements, the design aims to maintain reliable contact and wiring integrity under normal towing conditions.

• Molded plastic plug helps resist corrosion at contact points
• Sleeved cable exit lowers wear where wiring flexes
• Durable jacket suitable for typical trailer service environments
• Regular inspection recommended for long-term water and road exposure

Who is this for? The CURT 56601 7-way RV blade replacement harness is intended for RV and travel trailer owners, fleet managers and DIY tow vehicle technicians who need a dependable trailer-side plug replacement. It's a practical choice when the trailer's 7-way end is cracked, corroded, or otherwise unreliable, and for anyone who wants a color-coded, straightforward wiring solution that mates with standard 7-way vehicle sockets. If you tow regularly and want a simple, serviceable replacement harness to restore full trailer electrical function, this model is made for that role.