Cummins 5255321 Camshaft Thrust Washer

The 5255321 camshaft thrust washer is a critical internal engine component designed to manage axial end-play of the camshaft within the cylinder block. Manufactured to Cummins OEM specifications, it ensures precise valve timing stability under high-load diesel operating conditions. This thrust washer interfaces directly with the camshaft journal and block thrust surface, resisting wear from continuous rotational forces. Compatible with Cummins ISF2.8 and ISF3.8 engine series commonly installed in Foton light-duty trucks and light construction equipment. The component is typically replaced during major engine overhauls or camshaft service intervals to prevent excessive camshaft walk and subsequent timing gear damage. Net weight is approximately 0.3 kg. Supplied individually in protective packaging.