T-H Marine 4-Way 25 ft Trailer Wiring Harness – 25' Wishbone Harness with Vehicle & Trailer Connectors, Color-Coded Wires & Clips for Boat Trailer Brake Turn Tail Lights

• LENGTH & REACH – 25 ft wishbone 4-way harness provides generous length from tow vehicle to trailer lights, helping reduce wire strain and the need for splices on most small trailers.
• COMPLETE 4-WAY CONNECTION – 4-flat design carries tail, brake, and turn signal functions so your trailer lighting stays in sync with the tow vehicle for better visibility and safety.
• VEHICLE & TRAILER ENDS – Includes matching vehicle-side and trailer-side connectors so you can complete the wiring on both ends and plug the trailer directly into the tow vehicle.
• EASY ROUTING & SECURING – Color-coded conductors simplify installation, while the included clips help you secure the harness neatly along the trailer frame to prevent sagging.
• MARINE-READY PERFORMANCE – Built for boat and utility trailer use with durable materials intended for repeated trips and changing weather when properly installed and maintained.

The T-H Marine 4-Way 25 ft Trailer Wiring Harness is designed to give your trailer a clean, reliable lighting connection to the tow vehicle. With a 4-flat configuration, this harness carries the essential lighting functions, including tail, brake, and turn signal circuits, so your trailer lights respond correctly on the road and at the ramp. A 25 ft wishbone layout provides ample length for most small and midsize trailers. The split wishbone design lets you route left and right side conductors along each frame rail, which helps create a tidy installation and reduces the need for extra splices or extensions. Color-coded wires make it easier to identify circuits during the install, whether you are refreshing an older trailer or wiring a new build. The harness includes both vehicle-side and trailer-side connectors so you can complete the wiring on each end and plug directly in when it is time to tow. Included clips help secure the harness along the trailer frame to keep it off the ground and protected from snags. Built with durable materials for use around boat and utility trailers, this 4-way harness is a practical solution for dependable trailer lighting performance in a variety of weather conditions.