Komatsu Fuel Feed Pump DK105220-4100

The Komatsu Fuel Feed Pump DK105220-4100 is identified in the supplied parts catalog as a FUEL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S4D105-1 & 2. Listed machine applications include D40A-1, D40AF-1A, D40PF-1A, D40PL-1, and D45A-1. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is DK105220-4100 used for?

Part number DK105220-4100 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

S4D105-1 & 2

Engine models with serial-number ranges

S4D105-1 & 2 (Build 5D) ? 19078-Up

Application models without serial numbers

D40A-1, D40AF-1A, D40PF-1A, D40PL-1, D45A-1, D45P-1

Applications with serial-number ranges

D40A-1 S/No. 1501-Up, D40AF-1A S/No. 2201-Up, D40PF-1A S/No. 2201-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 DK105220-4100 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 DK105220-4100 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.