CURT 55315 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select GMC

Upgrade your truck's towing capabilities with CURT's plug-and-play custom trailer wire harness. This vehicle-specific trailer electrical connector provides a reliable 4-way flat connection without requiring any cutting or splicing, thanks to OEM-compatible trailer wiring plugs that connect directly into your taillight assembly. This trailer hitch wiring harness includes all necessary components for a complete installation, plus a protective dust cover for the connector. The custom-contoured design follows your vehicle's body lines for a clean, professional look. Perfect for establishing secure trailer electrical connections for your trailer's tail lights, brake lights, and turn signals. Please verify your vehicle compatibility using the application guide. checkmark Vehicle-specific trailer wire connector design ensures perfect fit for select C/K Series trucks (1500-3500 models) checkmark Plug-and-play installation with OEM-compatible trailer connectors - no cutting or splicing required checkmark 4-way flat trailer electrical connector powers trailer tail lights, brake lights, and turn signals checkmark 20-degree bent connectors follow vehicle contours for a clean, professional installation checkmark Includes dust cover to protect trailer connector when not in use checkmark Complete trailer wiring kit includes all necessary components for installation Please see all available photos