OEM / REF: 4089357SKU: pilotpart079251
Piston Kit 4089357 for Cummins Engine QSK23 is a Piston replacement part for Cummins Engine Spare Parts, categorized under Engine Spare Parts > Piston. Use OEM part number 4089357 and confirm machine model, engine model, and serial details before checkout.
This Piston is indexed for Cummins s: Fit For Cummins Engine:QSK23, QSK23 CM2250 K109, QSK23 CM500. Compare reference number 4089357 against the label on your existing Cummins component before ordering.
Before checkout, compare OEM part number 4089357, 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.
Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.
Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.
Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.
