How do I confirm pilotpart988371 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

For Cummins Fuel Filter

Fuel Filter 3959612 for Cummins

Q: What part numbers are associated with this Fuel Filter?

3959612, 3973232, 6CTA8.3, C3959612

OEM / REF: 3959612SKU: pilotpart988371

Fuel Filter 3959612 for Cummins Engine 6C8.3 6CTA8.3 ISC QSC ISL QSL ISM QSM ISX QSX is a Fuel Filter replacement part for Cummins Seals, Filters & Maintenance Parts, categorized under Seals, Filters & Maintenance Parts > Fuel Filter. Use OEM part number 3959612 and confirm machine model, engine model, and serial de...

Stock: In stock
Condition: New
Fitment: Cummins Seals, Filters & Maintenance Parts
Category: Fuel Filter

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$34.00USD/EA

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.

Fuel Filter Description

The product belongs to Seals, Filters & Maintenance Parts > Filters > Fuel Filter, making it useful when comparing related seals, filters & maintenance parts Fuel Filter options for Cummins Seals, Filters & Maintenance Parts.

Additional cross references on file: 3973232, 6CTA8.3, C3959612. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3959612 3973232 6CTA8.3 C3959612

Fitment Notes

Brand or application signal: Cummins Seals, Filters & Maintenance Parts
Product family: Fuel Filter
System category: Seals, Filters & Maintenance Parts > Filters > Fuel Filter
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.