Cummins 8PK1443 Serpentine Belt

The 8PK1443 is a poly-V serpentine drive belt designed for Cummins B series diesel engines. It features 8 ribs with an effective length of 1443 mm. Constructed from EPDM rubber compound for heat and oil resistance in heavy-duty engine accessory drives. This belt drives water pump, alternator, idler, and tensioner pulleys. Direct replacement for Cummins OEM part numbers 3911568, 3929330, C3288790, 3288790, and 3807359. Compatible with Cummins 4BT 3.9L, 6BT 5.9L, 6CT 8.3L, 6LTA 8.9L, and QSB engine variants used in construction machinery, generator sets, and commercial vehicles.