Komatsu Piston Body C/W Clips 6207-31-2121

The Komatsu Piston Body C/W Clips 6207-31-2121 is identified in the supplied parts catalog as a CYLINDER KIT & COMPONENTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S4D95L-1K and S6D95L-1NN/1PP. Listed machine applications include PC100-6 / 6Z, PC100L-6, PC120-6 / 6Z, PC130-6, and PW130-6K. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6207-31-2121 used for?

Part number 6207-31-2121 is cataloged as a Piston Body C/W Clips. It appears in the CYLINDER KIT & COMPONENTS parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

S4D95L-1K, S6D95L-1NN/1PP

Engine models with serial-number ranges

S4D95L-1K (Build 1J) ? 135080-Up | S6D95L-1NN/1PP (Build 2H) ? 106426-Up

Application models without serial numbers

PC100-6 / 6Z, PC100L-6, PC120-6 / 6Z, PC130-6, PW130-6K, WA180-3, WA250-3

Applications with serial-number ranges

PC100-6 / 6Z S/No. 40001-Up, PC100L-6 S/No. 15001-Up, PC120-6 / 6Z S/No. 45001-Up, PC130-6 S/No. 45001-Up, PW130-6K S/No. K30001-Up, WA180-3 S/No. 50001-52999, WA250-3 S/No. 50001-52999

How do I confirm fitment?

Match 6207-31-2121 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 6207-31-2121 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.