Long 25 Foot Trailer Wiring Harness 4 Pin To 5 Wire Adapter For Easy Install, Extended Length For Versatile Towing, Durable 4 Core Flat Wire With Ground Wire, Ideal For Custom Trailer Wiring Projects

25ft 4-Pin to 5-Wire Trailer Harness for Easy Install
✔️ 25 ft + 3 ft ground, single unit, copper conductors, weatherproof

This longer trailer wiring harness offers flexible routing for trailers, RVs, and cargo carriers, simplifying rewiring and maintenance.

✅ Extended Length: 25 ft 4-core flat wire with 3 ft ground
✅ Copper wire core for strong conductivity and reliable signals
✅ Weather-resistant insulation with black and red nylon mesh protection
✅ Fork-shaped Y connector for easy rewiring without splicing
✅ Suitable for trailer lights, brake lights, and running lights

💡 What is a trailer wiring harness 4 pin to 5 wire used for in everyday towing?

It’s a handy setup that keeps trailer lighting consistent and easy to install.

- Powers brake lights, turn signals, and running lights
- Works with common 4-pin to 5-wire configurations
- Includes extended reach for flexible routing on larger trailers
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