4 Pin 5 Wire Trailer Wiring Harness Kit - 22FT Nylon Protected Copper Wire Trailer Light Wiring With Waterproof Cover

About This Product

Upgrade or repair your trailer lighting with this complete 4 Pin 5 Wire Trailer Wiring Harness Kit.

Measuring a generous 22 feet with a 2.5-foot earth lead, the harness provides plenty of length for most standard trailers without needing extensions.

The Y-shaped 4-pin layout simplifies installation, and color-coded wires plus included instructions make connecting brake lights, turn signals, and tail lights straightforward even for DIYers.

Safety and durability are built in with thick, hand-threaded nylon mesh tubing that protects the high-quality 18-gauge copper wires from damage, including rodents and road debris.

A waterproof cover on the plug keeps dust and moisture out when not in use, ensuring reliable performance in all weather conditions.

This professional-grade harness uses premium copper wire for excellent conductivity and long-term performance.

It's compatible with industry standard 4-way flat sockets and works well for trailers up to and beyond 80 inches wide, making it suitable for a wide range of utility, boat, and equipment trailers.

The complete kit offers everything needed for a clean, dependable wiring solution.

Whether replacing worn-out wiring or setting up a new trailer, this harness delivers reliable lighting operation that meets safety standards.

Users appreciate the thoughtful protection features and generous length that prevent common installation headaches.

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