Komatsu Thermostat 600-421-6320

The Komatsu Thermostat 600-421-6320 is identified in the supplied parts catalog as a COOLING SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include SA6D110-1C/G and SA6D110-1N/P/P-B. Listed machine applications include N/K, EG150-3, and EG150-5. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 600-421-6320 used for?

Part number 600-421-6320 is cataloged as a Thermostat. It appears in the COOLING SYSTEM parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

SA6D110-1C/G, SA6D110-1N/P/P-B

Engine models with serial-number ranges

SA6D110-1C/G (Build 8C) ? 10350-Up | SA6D110-1N/P/P-B (Build 8D) ? 50001-Up

Application models without serial numbers

N/K, EG150-3, EG150-5

How do I confirm fitment?

Match 600-421-6320 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 600-421-6320 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.