NAMUX1 Harnesses

Kustom Truck Parts stocks premium NAMUX1 harnesses designed for 2006–2007 trucks, compatible with Peterbilt (357, 378, 379, 384, 386) and Kenworth (T600, T800, W900) chassis. These full replacement harnesses bridge analog switches with basic J1939 gauge integration via the ICU, supporting Caterpillar, Cummins and Detroit engines. Primarily built for engine conversions and swaps, they ensure precise firewall connections, include necessary data processors for J1587-to-J1939 compatibility where needed, and deliver plug-and-play reliability. Ideal for technicians upgrading older rigs, our NAMUX1 harnesses promote consistent electrical performance and simplified direct-fit installations for heavy-duty truck applications.