Cummins 3066899 Camshaft

The Cummins 3066899 camshaft is a critical valvetrain component designed for the Cummins K50 series engines, including KTA50 and QSK50 configurations. Manufactured from high-strength alloy cast iron or forged steel, it undergoes precision casting and CNC machining to maintain strict dimensional tolerances for journal diameters and lobe profiles. This camshaft actuates the injector and valve train mechanisms via followers and pushrods, controlling fuel injection timing and intake/exhaust valve events. It is a direct replacement for OEM part number 3066899 and supersedes interchange number 3043149. Applications span heavy construction machinery, mining haul trucks, marine propulsion systems, and stationary power generation units utilizing the K50 platform. The component features induction-hardened bearing surfaces and phosphate coating for corrosion resistance and break-in protection.