OEM / REF: 3684449SKU: pilotpart969235-8428774850808
Water Pump 3684449 for Cummins Engine ISX 450ST 550 is a Water Pump replacement part for Cummins Engine Spare Parts, categorized under Engine Spare Parts > Water Pump. Use OEM part number 3684449 and confirm machine model, engine model, and serial details before checkout.
This Water Pump is indexed for Cummins s: Engine: Cummins ISX 450ST 550. Compare reference number 3684449 against the label on your existing Cummins component before ordering.
Before checkout, compare OEM part number 3684449, 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.
