18″ 4-Pin Copper Trailer Wiring Harness Plug
$11.69 on Amazon.com (as of July 9, 2026, 4:57 AM EST) View details ↗
Upgrade your trailer lighting with this Ruibapa 18-inch 4-pin trailer wiring harness, featuring a durable pure copper 16-gauge terminal for superior conductivity and corrosion resistance. Designed to withstand harsh weather conditions, this premium harness ensures long-lasting performance for trailers, motorcycles, ATVs, and utility trailers.
The 46cm (18-inch) length provides ample flexibility for easy installation and rewiring, while the color-coded 18AWG wires simplify connections for brake lights, turn signals, and taillights. The included 4-pin male connector and dust cover ensure a secure, weatherproof fit. Backed by Ruibapa’s customer service, this plug-and-play replacement harness delivers reliable, hassle-free lighting solutions.
