How do I confirm pilotpart189237 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

V-Belt 3911588 for Cummins Engine 4B3.9 6B5.9 ISB ISB3.9 QSB 4BT 6BT

For Cummins Belts

Belts 3911588 for Cummins

Q: What part numbers are associated with this Belts?

3911588, C3911588, 4B3.9, 6B5.9, ISB3.9

OEM / REF: 3911588SKU: pilotpart189237

Cummins Belts 3911588 is listed under Engine Spare Parts > Belts with catalog data including Part Number: 3911588, C3911588. Verify fitment for Cummins Engine Spare Parts using the OEM number, mounting points, and photos of your existing part.

Stock: In stock
Condition: New
Fitment: Cummins Engine Spare Parts
Category: Belts

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$96.66USD/EA

~~$13,899.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Sep 22 – Sep 29
10	Sep 20 – Sep 27
50	Sep 18 – Sep 25

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Belts Description

This Belts is indexed for Part Number. Compare reference number 3911588 against the label on your existing Cummins component before ordering.

Additional cross references on file: C3911588, 4B3.9, 6B5.9. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3911588 C39115884B3.96B5.9ISB3.9

Applications

Part Number

Specifications

Part Number	3911588, C3911588

Fitment Notes

Brand or application signal: Cummins Engine Spare Parts
Product family: Belts
System category: Engine Spare Parts > Belt Drive Systems > Belts
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.