Cummins 512-0319 Crankshaft Pulley Assembly

This listing covers the Cummins crankshaft pulley part number 512-0319 and associated drive belt 512-0442. The crankshaft pulley, also known as a harmonic balancer or vibration damper, is critical for controlling torsional vibration in the crankshaft assembly. The drive belt transmits power from the crankshaft to engine accessories such as the alternator, water pump, and fan. Both components are manufactured to Cummins OEM specifications for fit, form, and function in compatible diesel engine platforms. Verification via engine serial number (ESN) is required prior to installation to ensure correct application.