How do I confirm pilotpart247939 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

Alternator Pulley 3925852 for Cummins Engine QSB QSB4.5

For Cummins Other Engine Parts

Other Engine Parts 3925852 for Cummins

Q: What part numbers are associated with this Other Engine Parts?

3925852, 3913435, 3919391, QSB4.5

OEM / REF: 3925852SKU: pilotpart247939

Alternator Pulley 3925852 for Cummins Engine QSB QSB4.5 is a Other Engine Parts replacement part indexed for Part Number and Cummins Engine: QSB,QSB4.5. Match OEM part number 3925852 and confirm fitment for Cummins Engine Spare Parts before ordering.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$87.66USD/EA

~~$31,599.00~~Save 100%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 22 – Oct 29
10	Oct 20 – Oct 27
50	Oct 18 – Oct 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.

Other Engine Parts Description

This Other Engine Parts is indexed for Part Number; Cummins Engine: QSB,QSB4.5. Compare reference number 3925852 against the label on your existing Cummins component before ordering.

Additional cross references on file: 3913435, 3919391, QSB4.5. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3925852 3913435 3919391 QSB4.5

Applications

Part Number
Cummins Engine: QSB,QSB4.5

Specifications

Part Number	3925852, 3913435, 3919391

Fitment Notes

Brand or application signal: Cummins Engine Spare Parts
Product family: Other Engine Parts
System category: Engine Spare Parts > Other Engine Spare Parts > Other Engine Parts
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.