4974975 Push Rod

The 4974975 push rod is a core valvetrain part for Cummins ISX12, ISX11.9, QSZ13 and Z13 engines. Constructed with seamless high-tensile steel tube and precision-finished end tips, it offers excellent bending resistance and surface wear resistance under cyclic loading. It transmits motion from camshaft to rocker arm precisely, securing accurate valve timing to maintain full engine power output and fuel efficiency. Strict straightness inspection during production eliminates bending risk under heavy working loads. Featuring OE-level dimension consistency, it directly replaces old push rods during engine repair with no extra adjustment. Ideal for on-highway trucks and stationary power equipment, it reduces unexpected breakdown risk.