Cummins Replacement Belts

This collection features heavy-duty aftermarket belts designed to replace original Cummins® part numbers used in diesel engines, generators, and industrial power systems. Engineered for high-load performance, these belts ensure reliable operation in commercial trucking, construction, marine, and power generation applications.

Typical Cummins OEM part numbers include formats like 328xxxx, 391xxxx, or 397xxxx (e.g., 3288667, 3911581, 3972385). Each listing clearly cross-references the original Cummins number and ships as a direct-fit aftermarket replacement designed for optimal tension, durability, and service life.

Whether you're servicing a commercial fleet or maintaining a backup generator, these belts provide the strength and precision needed to keep your Cummins-powered systems running smoothly.