Komatsu Pin Piston 6736-31-2430

The Komatsu Pin Piston 6736-31-2430 is identified in the supplied parts catalog as a CYLINDER KIT & COMPONENTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S4D102E-1, S6D102E-1AA, and SA6D102E-1AA. Listed machine applications include D32E-1, D32P-1, D38E-1, D38P-1, and D39E-1. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6736-31-2430 used for?

Part number 6736-31-2430 is cataloged as a Pin 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

S4D102E-1, S6D102E-1AA, SA6D102E-1AA

Engine models with serial-number ranges

S4D102E-1 (Build 3B) ? Not Provided | S4D102E-1 (Build 3D) ? Not Provided | S6D102E-1AA (Build 4A) ? 21180000-21295203 | SA6D102E-1AA (Build 4C) ? 21180000-21296536

Application models without serial numbers

D32E-1, D32P-1, D38E-1, D38P-1, D39E-1, D39P-1, WA120-1LC, GD530A/AW-2A/2B/2C, GD530A-1/AW-1, GD530A-1E, PC200-6/LC-6, PC210-6K, PC210LC-6, PC210LC-6K, WA180-1LC, WA250-1LC, PC220LC-6, PC240-6K, PC240LC-6K, PC240NLC-6K, PC250LC-6

Applications with serial-number ranges

D32E-1 S/No. 75501-75717, D32P-1 S/No. 75501-75717, D38E-1 S/No. 85501-85798, D38P-1 S/No. 85501-85798, D39E-1 S/No. 95501-95871, D39P-1 S/No. 95501-95871, WA120-1LC S/No. A20001-Up, GD530A/AW-2A/2B/2C S/No. 202002-Up, GD530A-1/AW-1 S/No. 200840-201999, GD530A-1E S/No. 201404-Up, PC200-6/LC-6 S/No. A82001-Up, PC210-6K S/No. K30001-Up, PC210LC-6 S/No. A82001-Up, PC210LC-6K S/No. K30001-Up, WA180-1LC S/No. A75001-Up, WA250-1LC S/No. A65001-Up, PC220LC-6 S/No. A82001-Up, PC240-6K S/No. K30001-Up, PC240LC-6K S/No. K30001-Up, PC240NLC-6K S/No. K30001-Up, PC250LC-6 S/No. A82001-Up

How do I confirm fitment?

Match 6736-31-2430 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 6736-31-2430 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.