Tough conditions call for a tougher trailer wiring harness

The Defender® brand Harness and Lighting System are warranted to the original purchaser against corrosion damage caused by the failure of the light or wiring harness for a period of ten (10) years from the date of shipment.

A built-in moisture barrier prevents water from wicking through the wiring, stopping corrosion before it spreads across the entire harness. This system-wide protection keeps electrical connections dry, ensuring long-term reliability in harsh environments.

Peterson’s J560 connectors are offered in a variety of configurations and angles for every application and offer rigid polymer molding and an engineering-grade resin over mold. Our patented snap-on flange means no pull through is needed for installation and a pliable, molded-in gasket ensures secure seating.

Peterson’s 5/8-inch blade terminals are thicker and wider than industry standards, ensuring a stronger, more reliable electrical connection. Their increased surface area minimizes voltage drop, improving power efficiency across the harness and wiring system.

Durable silicone seals used in the Defender´® module create a watertight shield at critical connection points, blocking moisture where wires and terminals meet. Their flexible, high-strength design maintains a secure seal against vibration, temperature changes, and road debris.

Peterson's .180 bullet connectors feature molded-in O-rings and detents, providing secondary locking for improved sealing and reliable electrical connections. The secure fit minimizes vibration-related failures, ensuring long-lasting performance in harsh environments.

Sealed ring terminals use adhesive-filled, heat-shrink connectors that completely encase the copper conductor for maximum corrosion protection. The barrier prevents moisture intrusion, extending the lifespan of electrical connections in demanding conditions.

The PetersonPATRIOT® brand Harness and Lighting System are warranted to the original purchaser against corrosion damage caused by the failure of the light or wiring harness for a period of five (5) years from the date of shipment.

PetersonPATRIOT® features a one-way, color-coded connectors and labeled central hub to make installation fast and foolproof. And if there’s ever an issue, it's easy to isolate and replace a damaged cable without disrupting the rest of the system—saving time, effort, and downtime.

Integrated into the color-coded distribution module, PetersonPATRIOT’s strain relief system adds another layer of durability by minimizing stress on connections and preserving performance.

A built-in moisture barrier prevents water from wicking through the wiring, stopping corrosion before it spreads across the entire harness. This system-wide protection keeps electrical connections dry, ensuring long-term reliability in harsh environments.

A 2-stage over-molding process fully encapsulates splices, adding strain relief and blocking moisture intrusion. Ultrasonically welded splices with adhesive-lined heat shrink tubing create a durable, sealed connection that resists road chemicals and environmental damage.

Peterson's .180 bullet connectors feature molded-in O-rings and detents, providing secondary locking for improved sealing and reliable electrical connections. The secure fit minimizes vibration-related failures, ensuring long-lasting performance in harsh environments.

Sealed ring terminals use adhesive-filled, heat-shrink connectors that completely encase the copper conductor for maximum corrosion protection. The barrier prevents moisture intrusion, extending the lifespan of electrical connections in demanding conditions.

The Maxi-Seal® Harness and Lighting System are warranted to the original purchaser against corrosion damage caused by the failure of the light or wiring harness for a period of three (3) years from the date of shipment.

Peterson’s J560 connectors are offered in a variety of configurations and angles for every application and offer rigid polymer molding and an engineering-grade resin over mold. Our patented snap-on flange means no pull through is needed for installation and a pliable, molded-in gasket ensures secure seating.

A 2-stage over-molding process fully encapsulates splices, adding strain relief and blocking moisture intrusion. Ultrasonically welded splices with adhesive-lined heat shrink tubing create a durable, sealed connection that resists road chemicals and environmental damage.

Peterson's .180 bullet connectors feature molded-in O-rings and detents, providing secondary locking for improved sealing and reliable electrical connections. The secure fit minimizes vibration-related failures, ensuring long-lasting performance in harsh environments.

Sealed ring terminals use adhesive-filled, heat-shrink connectors that completely encase the copper conductor for maximum corrosion protection. The barrier prevents moisture intrusion, extending the lifespan of electrical connections in demanding conditions.