Ensure a reliable, weather-resistant electrical connection between your tow vehicle and trailer with the CURT 56621 Replacement 7-Way RV Blade Harness. Designed specifically for the trailer end of your setup, this heavy-duty 7-pin plug replaces damaged, corroded, or shorted connector plugs on travel trailers, fifth wheels, utility trailers, and camper rigs.
Equipped with a generous 6-foot main cable lead, this harness provides ample slack for clean, hassle-free routing and installation. The cable contains heavy-gauge, color-coded internal wires (10 AWG, 12 AWG, and 14 AWG) engineered to handle standard trailer lighting signals, electric brakes, reverse lights, and 12V auxiliary power feeds.
Universal 7-Way RV Compatibility: Directly replaces any standard trailer-end 7-way RV blade harness plug.
6-Foot Extended Reach: Generous 6' cable length allows flexible installation, easy splicing, and smooth articulation while turning.
Heavy-Duty Cable Gauge: Premium multi-strand wiring includes 10 AWG (2), 12 AWG (1), and 14 AWG (4) wires for optimal current flow.
Color-Coded Wiring: Standardized wire colors simplify splicing into existing trailer electrical systems.
Durable & Weatherproof: Heavy-duty outer jacket and molded connector housing protect wire leads against dust, moisture, and road debris.
Tail & Running Lights
Left Turn & Brake Signal
Right Turn & Brake Signal
Electric Trailer Brakes
Reverse / Back-Up Lights
12V Auxiliary Battery Power
Ground
Brand: CURT
Part Number: 56621 / 504490
Cable Length: 6 Feet (1.8 Meters)
Plug Style: 7-Way RV Blade (Trailer End)