
25 Foot 4 Way Flat Trailer Wiring Harness Extension Kit With Heavy Duty 18 Gauge White Ground Wire For Trailers, Easy Install For Tail Lights And Turn Signals, Corrosion Resistant Wiring
25 Foot 4 Way Flat Trailer Wiring Harness Extension Kit With Heavy Duty 18 Gauge White Ground Wire For Trailers, Easy Install For Tail Lights And Turn Signals, Corrosion Resistant Wiring
The Story
✔️ Heavy duty, corrosion resistant 18 gauge ground wire included
This 25-foot 4-way flat trailer wiring harness extension kit powers tail lights, turn signals, and brake lights across trailers. Built for marine, horse, motorcycle, ATV, and other cargo trailers, it delivers a secure, corrosion-resistant connection that lasts under outdoor use.
✅ Length: 25 ft, 4-conductor wiring for tail lights, turn signals, and brake lights
✅ Ground wire: heavy gauge 18 AWG white ground for corrosion resistance
✅ Connector: 4-way flat plug compatible with standard trailers
✅ Material: corrosion-resistant wiring for outdoor use
✅ Package: 1 trailer light wiring harness extension
💡 What is a 4-Way flat trailer wiring extension used for? This handy accessory extends trailer lighting circuits for easy hookup on boats, trailers, and equipment.
- extends tail lights, brake lights, and turn signals from the towing vehicle to the trailer
- uses standard 4-way flat connectors for compatibility with most trailers
- made with corrosion-resistant wiring for long outdoor use
- keeps wiring organized and reduces installation time

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
✔️ Heavy duty, corrosion resistant 18 gauge ground wire included
This 25-foot 4-way flat trailer wiring harness extension kit powers tail lights, turn signals, and brake lights across trailers. Built for marine, horse, motorcycle, ATV, and other cargo trailers, it delivers a secure, corrosion-resistant connection that lasts under outdoor use.
✅ Length: 25 ft, 4-conductor wiring for tail lights, turn signals, and brake lights
✅ Ground wire: heavy gauge 18 AWG white ground for corrosion resistance
✅ Connector: 4-way flat plug compatible with standard trailers
✅ Material: corrosion-resistant wiring for outdoor use
✅ Package: 1 trailer light wiring harness extension
💡 What is a 4-Way flat trailer wiring extension used for? This handy accessory extends trailer lighting circuits for easy hookup on boats, trailers, and equipment.
- extends tail lights, brake lights, and turn signals from the towing vehicle to the trailer
- uses standard 4-way flat connectors for compatibility with most trailers
- made with corrosion-resistant wiring for long outdoor use
- keeps wiring organized and reduces installation time























