MAXXDuty USA-Plus harnesses feature ultrasonic welded splice joints which minimize current loss by providing positive contact. Using a virgin PVC mold compound, the harnesses are engineered for added durability and longer life. Plus, a durable cable jacket resists oils, acids, alkalis, sunlight, heat, weathering and abrasion. Utilizing a secondary pin-lock and an integral "O-ring" style sealing protection that's molded into the connector, the harnesses help prevent moisture from reaching the terminal areas.