Komatsu Ring Set Piston 6207-31-2501

The Komatsu Ring Set Piston 6207-31-2501 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-1A/1B/1G, S4D95L-1K, S6D95L-1, and S6D95L-1NN/1PP. Listed machine applications include PC100-5, PC120-5, PC120-5C, PC120-5M, and PC120-5Z. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6207-31-2501 used for?

Part number 6207-31-2501 is cataloged as a Ring Set Piston. 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-1A/1B/1G, S4D95L-1K, S6D95L-1, S6D95L-1NN/1PP, SA6D95L-1

Engine models with serial-number ranges

S4D95L-1A/1B/1G (Build 1H) ? 48811-Up | S4D95L-1K (Build 1J) ? 135080-Up | S6D95L-1 (Build 2F) ? 35360-Up | S6D95L-1NN/1PP (Build 2H) ? 106426-Up | SA6D95L-1 (Build 2J) ? 35398-Up

Application models without serial numbers

PC100-5, PC120-5, PC120-5, PC120-5C, PC120-5M, PC120-5Z, PC130-5, PC100-6 / 6Z, PC100L-6, PC120-6 / 6Z, PC130-6, PW130-6K, PC150-5 / LC-5, PC200-5C, PC200-5 / LC-5, PC200-5 /LC-5, PC200-5T, PC200-5Z, WA180-3, WA250-3, PC200-5 / LC-5, PC220-5, PC220LC-5, PC220LC-5

Applications with serial-number ranges

PC100-5 S/No. 28001-Up, PC120-5 S/No. 30001-Up, PC120-5 S/No. A40001-Up, PC120-5C S/No. 36601-Up, PC120-5M S/No. 36601-Up, PC120-5Z S/No. 36601-Up, PC130-5 S/No. 36601-Up, 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, PC150-5 / LC-5 S/No. 6001-Up, PC200-5C S/No. 45001-Up, PC200-5 / LC-5 S/No. 45001-Up, PC200-5 /LC-5 S/No. A47282-A70000, PC200-5T S/No. 58019-Up, PC200-5Z S/No. 45001-Up, WA180-3 S/No. 50001-52999, WA250-3 S/No. 50001-52999, PC200-5 / LC-5 S/No. A70001-Up, PC220-5 S/No. 35001-Up, PC220LC-5 S/No. 35001-Up, PC220LC-5 S/No. A35401-A70000-Up

How do I confirm fitment?

Match 6207-31-2501 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 6207-31-2501 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.