Heavy-Duty 7-Way LED Rewire Kit – WIR-5000-KIT

Everything you need to rewire your trailer — in one complete kit.

The WIR-5000-KIT is a complete heavy-duty 7-way LED rewire kit for trailers and RVs. It includes all essential plugs, wiring, and lighting to replace an old harness or build a new one from scratch. Designed for rugged use and LED-ready performance, each component is selected for reliability, weather resistance, and compatibility with standard 7-way blade systems.

Common Applications

• Rewiring enclosed cargo, utility, or equipment trailers
• Upgrading older trailers to LED lighting and 7-way connectivity
• Custom or shop builds requiring heavy-duty wiring
• RV or camper retrofits needing long, corrosion-resistant runs
• Farm, landscape, and contractor trailers exposed to the elements

Kit Includes

• 12-706 – 7-Way Blade Trailer End Plug
• 12-707 – 7-Way Blade Truck End Plug
• 16687 – 7-Blade and 4-Pin Trailer Plug Tester
• M09300R – Maxxima ¾″ Round LED Red Marker Light
• L34-WC9B-1 – Tecniq License Plate Light with .180 Bullets
• J-25-AK – Jammy 2½″ Round Amber 4-LED Grommet Mount Light Kit
• WTC147M-5-XX – 14-7 Multigauge Trailer Wire (Select Length)

Features & Benefits

• Heavy-duty 14-gauge wiring rated for LED and brake circuits
• Color-coded conductors simplify installation and diagnostics
• Corrosion-resistant plugs and sealed LEDs for long service life
• Compatible with standard junction boxes and 7-way connectors
• Custom length options available to fit your trailer perfectly

Installation Notes

• Mount junction box near trailer tongue for easy access
• Secure harness along frame rails; avoid pinch points
• Test brake, turn, and tail circuits with the included plug tester
• Apply dielectric grease to all connections for corrosion protection

Need a custom length or help choosing the right setup?
Call or text 815-357-3292 for quick support and fitment questions.