CURT 7-Way RV Blade Replacement Harness - 6' Color-Coded Cable, Male Trailer Plug

CURT 56601 is a 7-way RV blade replacement harness that restores full trailer wiring functions with a 6-foot, color-coded cable and a durable male blade plug for the trailer side connection.

When towing, a dependable electrical connection between tow vehicle and trailer is essential for safety and compliance. The CURT 56601 replacement harness is built to substitute a worn or damaged 7-way blade plug on travel trailers, delivering power for lights, brakes, reverse lamp circuits, a 12V feed and ground. Designed to match standard 7-way RV wiring layouts, this harness offers straightforward installation and weather protection so you can get back on the road with confidence.

What does this harness replace and which circuits does it support?

This replacement harness takes the spot of a trailer-side 7-way blade plug and provides all the common trailer circuits used on RV travel trailers. It restores lighting, braking and auxiliary power so trailers function as intended when connected to a tow vehicle.

• Tail and marker lights
• Left and right turn signals
• Electric trailer brakes
• 12-volt auxiliary feed (battery/charging)
• Reverse/back-up lights
• Common ground connection

How easy is it to install the CURT 56601 harness?

Installation is designed to be straightforward for anyone comfortable with basic wiring splices. The harness arrives with color-coded leads to match standard trailer wiring, allowing you to splice into existing conductors and protect the connections inside the trailer's junction box.

• Color-coded wires for simple identification
• Male blade plug pre-assembled for trailer-side mounting
• 6-foot cable length gives working room for routing and splicing
• Use heat-shrink, crimp connectors, or waterproof splices for durability

Will this fit my trailer and withstand outdoor conditions?

The CURT 56601 follows the common 7-way RV blade configuration, making it interchangeable with other standard 7-way connectors used on travel trailers. A protective plastic sleeve over the cable helps resist abrasion and moisture exposure at the connection point.

• Interchangeable with standard 7-way RV connectors
• Protective plastic sleeve shields cable where it meets the plug
• 6' length accommodates different vehicle-trailer spacing
• Male-end design intended for trailer-mounted replacement

Who is this for? The CURT 56601 7-way RV blade replacement harness suits RV owners, DIY trailer technicians, and service shops needing a reliable trailer-side plug to replace a damaged or corroded connector. It’s ideal if you want a direct, standards-compatible replacement with clear wire identification and enough cable length to route and splice cleanly inside the trailer. Choose this harness when you need a straightforward swap to restore lighting, brake control, and auxiliary power without reworking the entire trailer wiring harness.