Komatsu Oil Pump 6112-51-1104

The Komatsu Oil Pump 6112-51-1104 is identified in the supplied parts catalog as a LUBRICATING OIL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include 4D120-11F/G and S4D120-11A/B/D/G. Listed machine applications include GD31-3H, GD37-5H, and D55-3. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6112-51-1104 used for?

Part number 6112-51-1104 is cataloged as a Oil Pump. It appears in the LUBRICATING OIL SYSTEM parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

4D120-11F/G, S4D120-11A/B/D/G

Engine models with serial-number ranges

4D120-11F/G (Build 27A) ? 50025-Up | S4D120-11A/B/D/G (Build 27B) ? 50006-Up

Application models without serial numbers

GD31-3H, GD37-5H, D55-3

How do I confirm fitment?

Match 6112-51-1104 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 6112-51-1104 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.