Komatsu Nozzle Piston Cooling 6151-21-1810

The Komatsu Nozzle Piston Cooling 6151-21-1810 is identified in the supplied parts catalog as a CYLINDER BLOCK & COMPONENTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include SA6D125-1. Listed machine applications include D135A-1. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6151-21-1810 used for?

Part number 6151-21-1810 is cataloged as a Nozzle Piston Cooling. It appears in the CYLINDER BLOCK & COMPONENTS parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

SA6D125-1

Engine models with serial-number ranges

SA6D125-1 (Build 10H) ? Not Provided

Application models without serial numbers

D135A-1

Applications with serial-number ranges

D135A-1 S/No. 10001-Up

How do I confirm fitment?

Match 6151-21-1810 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 6151-21-1810 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.