Trailer and RV wiring keeps your lights working, brakes responding, and accessories powered while towing. From basic 4-way flat connectors to 7-way blade harnesses with brake controller circuits, we have the wiring, adapters, and connectors to get your setup road-legal and functional.

Connector types explained

• 4-way flat: Basic lights only—tail, turn, brake, and ground. For small trailers without brakes.
• 5-way flat: Adds a 12V auxiliary circuit for interior lights or charging.
• 6-way round: Common on older trailers. Includes electric brake circuit.
• 7-way blade (RV style): Full featured—running lights, brake, turn, electric brakes, 12V power, backup lights, and ground. Standard on travel trailers and fifth wheels.

Common wiring needs

• Vehicle-to-trailer connectors: Plugs and sockets for the tow vehicle and trailer tongue.
• Adapters: Convert between connector types (e.g., 7-way to 4-way for towing a utility trailer with your RV truck).
• Wiring harnesses: Replace damaged trailer wiring or install on a new trailer.
• Brake controller wiring: Connects your brake controller to the trailer brake circuit.
• Extension cables: Reach from truck bed to gooseneck or fifth wheel connections.

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