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Chosen by over 100,000 customers for trusted quality and exceptional service.
Enjoy a full year of warranty, ensuring long-lasting reliability and peace of mind.
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V-Belt 3979344 for Cummins Engine 4BT 6BT ISB 6.7L ISB QSB
Part Number:
3979344 Fit for
Engine:
Cummins 4BT, 6BT, ISB 6.7L, ISB, QSB
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All new aftermarket parts come with a 1-Year warranty. Quality is the first thing we consider. Check out our Warranty Assistance for more details.
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We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.
