Komatsu Core Oil Cooler 600-651-1421

The Komatsu Core Oil Cooler 600-651-1421 is identified in the supplied parts catalog as a LUBRICATING OIL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S4D105-5A/B. Listed machine applications include PC100-1, PC100-2, PC-120-2, and PW100-1. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 600-651-1421 used for?

Part number 600-651-1421 is cataloged as a Core Oil Cooler. 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

S4D105-5A/B

Engine models with serial-number ranges

S4D105-5A/B (Build 5F) ? 100028-149999 | S4D105-5A/B (Build 5G) ? 150001-Up

Application models without serial numbers

PC100-1, PC100-2, PC-120-2, PW100-1

Applications with serial-number ranges

PC100-1 S/No. 1001-Up, PC100-2 S/No. 1001-Up, PC-120-2 S/No. 14001-Up, PW100-1 S/No. 1003-Up

How do I confirm fitment?

Match 600-651-1421 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 600-651-1421 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.