How do I confirm pilotpart258796 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

Upper Engine Gasket Set 4089758 for Cummins ISC ISL QSC

For Cummins Overhaul Gasket

Overhaul Gasket 4089758 for Cummins

OEM / REF: 4089758SKU: pilotpart258796

Upper Engine Gasket Set 4089758 for Cummins ISC ISL QSC is a Overhaul Gasket replacement part indexed for Part Number and Cummins s: Engine：Cummins ISC ISL QSC. Match OEM part number 4089758 and confirm fitment for Cummins Engine Spare Parts before ordering.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$225.77USD/EA

~~$24,620.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Sep 24 – Oct 1
10	Sep 22 – Sep 29
50	Sep 20 – Sep 27

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.

Overhaul Gasket Description

This Overhaul Gasket is indexed for Part Number; Cummins s: Engine：Cummins ISC ISL QSC. Compare reference number 4089758 against the label on your existing Cummins component before ordering.

Before checkout, compare OEM part number 4089758, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

4089758

Applications

Part Number
Cummins s: Engine：Cummins ISC ISL QSC

Specifications

Part Number	4089758

Fitment Notes

Brand or application signal: Cummins Engine Spare Parts
Product family: Overhaul Gasket
System category: Engine Spare Parts > Cylinder Components > Overhaul Gasket
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.