Wiring Harness

Many people would agree that the single biggest complaint trailer owners have is wiring problems. For this reason, we at Johnson Trailer Co. offer many models of trailers with a factory sealed wiring harness.

All wiring harnesses are custom built for specific models of Road Warrior® and Load Warrior® trailers.

 Trailer Wiring Harness Specifications
 Conductors and cable meet ATA and SAE specifications.
 Conductors are 100% pure copper.
 Conductors and cable are insulated with polyvinyl chloride.
 Multi-conductor cable pressure insulated with .055″ wall thickness for durability.
 All terminals are machine applied.
 Joints are sonically welded and with a heat mold seal.
 Female terminals are filled with a corrosive preventative compound.
 Molded plugs – 75 durometer polyvinyl chloride.
 Systems manufactured in modular form for ease of installation.
 Modular components simply plug together.


Note: For information regarding trailer electrical connector wiring schematic. – Click to view wiring diagrams