Custom Wire Harnesses for Transportation, Automotive & Trailers

Rugged wiring solutions for trailers, RVs, agricultural equipment, and specialty vehicles. Built to withstand vibration, moisture, and extreme temperatures.
Welcome to WIRINGLABS
When you are building custom trailers or modifying specialty vehicles, finding the right wiring harness can be a bottleneck. Standard off-the-shelf cables often don’t fit, and large factories won’t touch small production runs. WiringLabs provides rugged, custom-fit harnesses for small manufacturers and repair shops. We ensure your lights, brakes, and auxiliary systems work reliably, no matter the terrain.

Common Applications

  • Trailer Lighting & Brake Systems: 4-way, 5-way, 6-way, and 7-way connectors for utility and boat trailers.

  • RV & Camper Van Conversions: Interior lighting, house battery connections, and solar panel wiring.

  • Agricultural & Construction Equipment: Heavy-duty wiring for sensors, GPS systems, and hydraulic controls.

  • Aftermarket Automotive Electronics: Backup cameras, LED light bars, and stereo system installations.

  • Electric Golf Carts & Utility Vehicles: Battery bank wiring and motor controller connections.

Why WiringLabs

  • Weatherproof & Durable: We use braided sleeving, corrugated looms, and IP67-rated connectors to protect against water and debris.

  • Vibration Resistance: High-strand count copper wire and strain reliefs prevent breakage caused by road vibration.

  • Low MOQ for Custom Builders: Perfect for boutique trailer manufacturers or custom RV conversion shops.

  • Compliance Awareness: Familiarity with SAE standards for wire coloring and connector types.

Related Products

  • Heavy-Duty Trailer Harnesses: 7-pin, 5-pin, and 4-flat connectors with molded rubber grips.

  • XT60/XT90 Power Cables: High-current connectors for battery banks and solar inputs.

  • Waterproof Junction Boxes: Custom wiring for LED light bars and auxiliary lighting.

  • Battery Cable Assemblies: Pure copper, thick gauge (8 AWG – 2 AWG) for starter and inverter cables.

Value Added Services

  • Drawing Replication: Send us your old harness or a schematic, and we will build a perfect replica.

  • Electronics Parts Consolidation: Source switches, fuses, relays, and connectors in one shipment.

  • DDP Logistics to US: Door-to-door delivery, handling all customs clearance for your replacement parts.

Get In touch

Have Questions? Need a Quote? Our Team is Ready to Assist You.