NAMUX4 Harnesses

Discover Kustom Truck Parts' NAMUX4 harnesses for 2013–2019 chassis, including Peterbilt (567, 579) and Kenworth (T680, T880). Evolving through CECU3 to VECU phases for comprehensive digital control over J1939 (supporting 250K baud rate chassis systems), these full harnesses support Caterpillar, Cummins and Detroit Diesel engine installations. Focused on engine conversions and OEM replacement harnesses, they are engineered for precision, simplified direct-fit installation, and superior durability to minimize downtime and maximize performance for demanding heavy-duty applications.