4316791 Crankshaft Pulley

Part 4316791 crankshaft pulley drives auxiliary systems for Cummins ISZ, QSZ and Z13 engines. Cast from high-density alloy with precision dynamic balancing treatment, it eliminates eccentric vibration during high-speed rotation to protect crankshaft and connected accessories. Its surface anti-slip structure guarantees reliable belt transmission without slipping under fluctuating torque. Heat-resistant material prevents deformation under sustained engine heat. Made strictly matching OEM specs, it fits perfectly and enables straightforward assembly during engine rebuild. This pulley maintains stable operation of fan and water pump, supporting continuous reliable running of Cummins heavy-duty engines for transportation and industrial equipment.