Cummins 4BT 3.9 and 6BT 5.9 Belts

Ensure the dependability of your Cummins B-Series engines with belts from Diesel Parts Direct. Routine replacement of the serpentine belt for 3.9L and 5.9L Cummins engines will prevent breakdowns, so ensure that you have some on-hand when maintenance is performed. We have OEM and aftermarket fan belts, along with serpentine belts for the 4BT and 6BT, so check our online store today.

When you order belts and supplies from Diesel Parts Direct, parts delays will become a thing of the past. Most belts including v-belts, water pump drive belts, engine belts and more are stock and ready to ship.

Maximize dependability and minimize the hassle in doing it by ordering Cummins 4BT and 6BT belts from Diesel Parts Direct. You’ll be glad you did.