26FT Trailer Wiring Harness Kit, 4 Pin 5 Wire Trailer Wiring Harness, Boat Trailer Wiring Harness, 5 Wire 4 Pin Flat Trailer Connector, for Connection of Tail Lights, Brake Lights and Turn Signals

25% off — $22.59 — at Walmart

$22.59$29.9925% OFF

Price as of August 19, 2026 at 5:46 AM

Your trailer lights are on the fritz. Again. You’re tired of getting pulled over for a busted blinker. Replacing the wiring shouldn’t require a PhD in electrical engineering – or a second mortgage for the parts. Meet the 4‑Pin 5‑Wire Trailer Wiring Harness – the trailer wiring kit that’s simple, tough, and actually fits. Whether you call it a trailer wire kit, a boat trailer wiring harness, or “that thing that finally made my lights work” – this is the one. Why You’ll Actually Enjoy Rewiring Your Trailer 1. Five wires = no extra splicing. Most harnesses make you join wires and run extensions. Not this one. The 5‑wire design covers everything you need – left turn, right turn, tail, ground, and brake. It’s a trailer light wiring kit that comes ready to roll. Just connect and go. 2. Tough as nails, even under your boat trailer. Pure copper core. Thick PVC jacket. Braided nylon mesh on the outside. This trailer wiring harness kit shrugs off road spray, mud, and salt. The plug covers snap shut to keep dirt out. It’s the trailer light wiring harness kit that survives seasons of launch ramps and gravel roads. 3. Color‑coded wires – no guesswork. Match the colors to your trailer’s 4‑way flat socket. Green, yellow, brown, white – it’s like painting by numbers. This 4 pin trailer wiring harness is beginner‑friendly but professional‑grade. Even if you’ve never spliced a wire before, you’ll get it right the first time. Click “Add to Cart” – your trailer’s lights will thank you. So will the driver behind you. 🚛💡

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