Cummins 4009258 Alternator Pulley

Cummins 4009258 alternator pulley is a genuine OEM component designed for belt-driven alternator systems on Cummins diesel engines. Manufactured to exact specifications for proper belt tracking, tension retention, and rotational balance. Compatible with Cummins KTA38 heavy-duty industrial engines and QSF2.8 compact off-highway engines. Constructed from high-strength steel with precision-machined grooves for multi-rib belt engagement. Surface treatment provides corrosion resistance in harsh operating environments. Direct replacement for factory-installed pulley assemblies.