Komatsu Cylinder Kit KMP1021

The Komatsu Cylinder Kit KMP1021 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 S6D102E-1AB & SA6D102E-1AB. Listed machine applications include D31E-20, D31E-20A, D37E-5, D37P-5A, and D38E-1 / P-1. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is KMP1021 used for?

Part number KMP1021 is cataloged as a Cylinder Kit. 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, S6D102E-1AB & SA6D102E-1AB

Engine models with serial-number ranges

S4D102E-1 (Build 3A) ? Not Provided | S4D102E-1 (Build 3B) ? Not Provided | S4D102E-1 (Build 3C) ? Not Provided | S4D102E-1 (Build 3D) ? Not Provided | S6D102E-1AA (Build 4A) ? 21180000-21295203 | S6D102E-1AB & SA6D102E-1AB (Build 4B) ? 21295204-Up & 21296537-Up

Application models without serial numbers

D31E-20, D31E-20A, D37E-5, D37P-5A, D38E-1 / P-1, D38E-1A / P-1A, D39E-1 / P-1, D39E-1A / P-1A, PC60-7 / PC60-7B, PC100-6 / 6Z, PC100L-6, PC120-6 / 6Z, PC130-6K, PC128US-1 / UU-1, PC128US-2 / UU-2, PC138USLC-2, PC150LGP-6K, PC158USEL-2, PC158USLC-2-WI, PW130ES-6K, WA120-3 Avance Plus, WA120-3L, WA120L-3, D32E-1, D32P-1, D38E-1, D38P-1, D39E-1, D39P-1, D32E-1, D32P-1, D32E-1A, D32P-1A, 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, D41E-6 / P-6, PC228US-2-KJ, D41E-6K/ 6K-B, PC230-6 / LC-6, PC200-6B, PC240-6K, PC200-6 / LC-6 / 6H, PC240LC-6K, PC200-6, PC240NLC-6K, PC200-6Z / LC-6Z, PC250-6, PC200CA-6, PC250HD-6, PC200CA-6-C1, PC250LC-6, PC200CA-6-U1, PC250LC-6, PC200EL-6K, GD521A-1E, PC200EN-6K, GD530A/AW-2B/2C, PC200LL-6, WA180-3/3A, PC200Z-6LE, WA180-3 Avance Plus, PC210-6, WA180-3 Avance Plus PTC, WA180-3L, PC210LC-6, WA180L-3, WA250-3 Avance Plus, PC220-6 / LC-6, WA250-3 Avance Plus PTC, PC220LC-6, WA250-3A, PC220LL-6, WA250-3L, PC228USLC-1, WA250-3L PTC, PC228USLC-2, WA250L-3, PC228US-1T, WA300L-3, PC228UU-1-NZ, WA320-3 Avance Custom

Applications with serial-number ranges

D31E-20 S/No. 40087-42001-Up & A40523-Up, D31E-20A S/No. 45001-Up, D37E-5 S/No. 1606-3001-Up & A1924-Up, D37P-5A S/No. 1543-3001-Up & 1649-Up, D38E-1 / P-1 S/No. 85799-Up, D38E-1A / P-1A S/No. 86239-Up, D39E-1 / P-1 S/No. 95872-Up, D39E-1A / P-1A S/No. 96338-Up, PC60-7 / PC60-7B S/No. 45001-Up, PC100-6 / 6Z S/No. 40001-Up, PC100L-6 S/No. 15001-Up, PC120-6 / 6Z S/No. 45001-Up, PC130-6K S/No. K30001-Up, PC128US-1 / UU-1 S/No. 1001-Up, PC128US-2 / UU-2 S/No. 5001-Up, PC138USLC-2 S/No. 1001-Up, PC150LGP-6K S/No. K35001-Up, PC158USEL-2 S/No. 10001-Up, PC158USLC-2-WI S/No. 10001-Up, PW130ES-6K S/No. K30545-Up, WA120-3 Avance Plus S/No. A31001-Up, WA120-3L S/No. A30001-Up, WA120L-3 S/No. 54001-Up, 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, D32E-1 S/No. 75718-Up, D32P-1 S/No. 75718-Up, D32E-1A S/No. 76093-Up, D32P-1A S/No. 76093-Up, 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, D41E-6 / P-6 S/No. B20001-Up, PC228US-2-KJ S/No. 15001-Up, D41E-6K/ 6K-B S/No. 50001-Up, PC230-6 / LC-6 S/No. 10001-Up, PC200-6B S/No. C10001-Up, PC240-6K S/No. K30001-Up, PC200-6 / LC-6 / 6H S/No. 80001-Up, PC240LC-6K S/No. K30001-Up, PC200-6 S/No. A83001-Up, PC240NLC-6K S/No. K30001, PC200-6Z / LC-6Z S/No. 80001-Up, PC250-6 S/No. 10001-Up, PC200CA-6 S/No. T10001-Up, PC250HD-6 S/No. 10001-Up, PC200CA-6-C1 S/No. T10001-Up, PC250LC-6 S/No. 10001-Up, PC200CA-6-U1 S/No. T10001-Up, PC250LC-6 S/No. A83001-Up, PC200EL-6K S/No. K30001, GD521A-1E S/No. 12001-Up, PC200EN-6K S/No. K30001, PC200LL-6 S/No. A85001-Up, WA180-3/3A S/No. 53001-Up, PC200Z-6LE S/No. A83001-Up, PC210-6 S/No. 30001-Up, WA180-3L S/No. A80001-Up, PC210LC-6 S/No. A83001-Up, WA180L-3 S/No. 54001-Up, PC220-6 / LC-6 S/No. 50001-Up, PC220LC-6 S/No. A83001-Up, WA250-3A S/No. 53001-Up, PC220LL-6 S/No. A85001-Up, WA250-3L S/No. A70001-Up, PC228USLC-1 S/No. 11001-Up, PC228USLC-2 S/No. 15001-Up, WA250L-3 S/No. 53001-Up, PC228US-1T S/No. 11001-Up, WA300L-3 S/No. 53001-Up, PC228UU-1-NZ S/No. 11001-Up

How do I confirm fitment?

Match KMP1021 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 KMP1021 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.