Komatsu Fuel Feed Pump DK105220-1810

The Komatsu Fuel Feed Pump DK105220-1810 is identified in the supplied parts catalog as a FUEL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include 4D105-3C and S4D105-3. Listed machine applications include D31A-16, D31P, PL, PLL-16, D31P-16A, D31Q-16, and D31S-16. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is DK105220-1810 used for?

Part number DK105220-1810 is cataloged as a Fuel Feed Pump. It appears in the FUEL SYSTEM parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

4D105-3C, S4D105-3

Engine models with serial-number ranges

4D105-3C (Build 5A) ? 40138-Up | S4D105-3 (Build 5E) ? 44579-Up

Application models without serial numbers

D31A-16, D31P, PL, PLL-16, D31P-16A, D31Q-16, D31S-16, D40A-1, D40PL-1, D45A-1, D45P-1

Applications with serial-number ranges

D31A-16 S/No. 25001-Up, D31P, PL, PLL-16 S/No. 25001-Up, D31P-16A S/No. 25001-Up, D31Q-16 S/No. 25001-Up, D31S-16 S/No. 25001-Up, D40A-1 S/No. 1501-Up, D40PL-1 S/No. 1501-Up, D45A-1 S/No. 1501-Up, D45P-1 S/No. 1501-Up

How do I confirm fitment?

Match DK105220-1810 to the existing part number and verify the complete engine model, equipment model, and serial number. A shared model name does not confirm compatibility because production changes can affect the required component.

Frequently asked question

Will DK105220-1810 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.