4 Pin 5 Wire Trailer Wiring Harness 18 Inch Replacement Kit With 16AWG Pure Copper Conductors And Y Split Design For Utility Boat ATV UTV Trailers Flat 4 Pin Plug Rewire Or Replace Worn Trailer Lights

4 Pin 5-Wire Trailer Wiring Harness for 18-Inch Replacement
✔️ 16AWG pure copper conductors with Y-split design for dual taillights

This 18-inch, 4-pin, 5-wire trailer wiring harness is designed to replace worn or damaged harnesses on utility, boat, ATV and UTV trailers. It features a standard 4-pin flat plug and a Y-split routing that directs power to both taillights while keeping wires away from the axle.

✅ 16AWG pure copper conductors for strong conductivity and reliable connection
✅ Y-split design routes power to both taillights without crossing the axle
✅ 18 inch length with standard 4-pin flat plug for easy replacement
✅ Rubber dust cover protects plug from water and dust when not in use
✅ Thick PVC jacket guards against abrasion and weathering in trailer environments

💡 What is a 4 pin 5 wire trailer wiring harness used for and how does the Y-split design help?

Handy explanation: it provides the essential electrical connections for trailer lighting in one compact unit.

- Supports brake lights, turn signals, and taillights with a single harness - Y-split routes power to both sides without running a wire across the axle - 16AWG copper conductors offer solid conductivity in varying weather ✝️