OEM / REF: 3864178SKU: pilotpart275190
Engine Thermostat 3864178 3925473 for Cummins 6BT ISB QSB Engine 2500 3500 Truck is a Engine Thermostat replacement part indexed for Cummins 2500 and Cummins 3500, with 3 application records on file. Match OEM part number 3864178 and confirm fitment for Cummins Engine Spare Parts before ordering.
This Thermostat is indexed for Cummins 2500; Cummins 3500; Cummins; Cummins. Compare reference number 3864178 against the label on your existing Cummins component before ordering.
Additional cross references on file: 3925473, 3500. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.
| Part Number | 3864178, 3925473 |
|---|
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.
