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Cummins V Ribbed Belt - 3972381

Cummins Belt, V Ribbed

Engine Belt for 4B3.9, 6B5.9, ISB and ISB3.9 Cummins engines.

Choosing Genuine Cummins parts means you get precision design, state-of-the-art manufacturing and diligent testing that ensures our parts perform at our factory-specified levels of efficiency, reliability and durability. Genuine Cummins parts come with a full factory warranty, giving you peace of mind and financial protection. Visit parts.cummins.com to validate your part number.