How do I confirm pilotpart984083 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

Thermostat Housing Gasket 3680601 for Cummins X15 QSX ISX QSX15 ISX15 Engine

For Cummins Thermostat

Thermostat QSX15 for Cummins

OEM / REF: QSX15SKU: pilotpart984083

Thermostat Housing Gasket 3680601 for Cummins X15 QSX ISX QSX15 ISX15 Engine is a Thermostat replacement part for Cummins Engine Spare Parts, categorized under Engine Spare Parts > Thermostat. Use OEM part number QSX15 and confirm machine model, engine model, and serial details before checkout.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$23.73USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 9 – Aug 16
10	Aug 7 – Aug 14
50	Aug 5 – Aug 12

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.

Thermostat Description

This Thermostat is indexed for Cummins s: Engine:Cummins X15, QSX, ISX, QSX15, ISX15. Compare reference number QSX15 against the label on your existing Cummins component before ordering.

Additional cross references on file: ISX15, 3680601. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

QSX15 ISX15 3680601

Applications

Cummins s: Engine:Cummins X15, QSX, ISX, QSX15, ISX15

Fitment Notes

Brand or application signal: Cummins Engine Spare Parts
Product family: Thermostat
System category: Engine Spare Parts > Lubrication & Cooling Systems > Thermostat
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.