OEM / REF: 387-9903SKU: pilotpart427370
Engine Water Pump 387-9903 for Caterpillar CAT C3.3 Engine 257D 259D 279D 289D Skid Steer Loader 308 Excavator is a Water Pump replacement part indexed for CAT 257D and CAT 259D, with 3 application records on file. Match OEM part number 387-9903 and confirm fitment for Caterpillar Engine Spare Parts before ordering.
This Water Pump is indexed for CAT 257D; CAT 259D; CAT 279D; CAT 289D. Compare reference number 387-9903 against the label on your existing Caterpillar component before ordering.
Before checkout, compare OEM part number 387-9903, 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.
| Gaskets | Included |
|---|---|
| Part Number | 387-9903 |
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.
