Replace a worn or damaged trailer-side 7-way RV blade connector with this 10' Curt wiring harness. The male plug and color-coded blunt-cut wires support trailer lighting, electric brakes, reverse lights, auxiliary power, and ground connections.
Curt 56603 is a universal replacement harness designed for the trailer side of a standard 7-way RV blade connection. It replaces a damaged or worn trailer-end plug while providing a generous 10' wire lead for routing and splicing into the trailer's existing electrical system.
Seven color-coded blunt-cut wires simplify identification during installation, while the heavy-duty weather-resistant cable helps protect the wiring from moisture, road grime, abrasion, and exposure. Concealed wire terminals at the plug provide additional protection against dirt and corrosion.
Provides ample length for routing and splicing into existing trailer wiring
Standard male trailer-side connection for compatible tow vehicles
Blunt-cut wiring simplifies identification during installation
Heavy-duty outer protection helps shield wiring from the elements
Curt 56603 installs on the trailer and plugs into a compatible female 7-way RV blade socket on the tow vehicle. It is not a vehicle-side socket or 7-way adapter.
The 10' lead terminates in blunt-cut wires and must be properly spliced into the trailer's existing wiring. Verify each circuit before making permanent connections, as wiring configurations can vary between trailers.
In The Package: • Curt 56603 Trailer-Side 7-Way RV Blade Plug • Attached 10' Color-Coded Wiring Lead
The 7-way connection supports ground, taillights, left and right turn/brake signals, electric trailer brakes, reverse lights, and 12V auxiliary power when properly wired.