Komatsu Thrust Metal 0.50MM 6731-21-8610

The Komatsu Thrust Metal 0.50MM 6731-21-8610 is identified in the supplied parts catalog as a CRANKSHAFT & RELATED PARTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S4D102E-1, SA4D102E-1AB, SAA4D102E-2B, and S6D102E-1AA. 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 6731-21-8610 used for?

Part number 6731-21-8610 is cataloged as a Thrust Metal 0.50MM. It appears in the CRANKSHAFT & RELATED PARTS parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

S4D102E-1, SA4D102E-1AB, SAA4D102E-2B, S6D102E-1AA, S6D102E-1AB & SA6D102E-1AB, SA6D102E-1AA, SA6D102E-1AC, SAA6D102E-2

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 | SA4D102E-1AB (Build 3E) ? 21240928-Up | SAA4D102E-2B (Build 3F) ? 26277757-Up | S6D102E-1AA (Build 4A) ? 21180000-21295203 | S6D102E-1AB & SA6D102E-1AB (Build 4B) ? 21295204-Up & 21296537-Up | SA6D102E-1AA (Build 4C) ? 21180000-21296536 | SA6D102E-1AC (Build 4D) ? 21288263-Up | SAA6D102E-2 (Build 4E) ? 26474903-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, PW170ES-6K, D31EX-21, D31PX-21, D37EX-21, D37PX-21, D39EX-21, D39PX-21, PC160LC-7, 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, PC220LC-6, PC240NLC-6K, PC250LC-6, GD555-3C, PC270LC-6, PC290LC-6K, PC290NLC-6K, PC200-7-W1, PC200LC-7, PC200LC-7B, PC200LC-7L, PC200LC-7-US / W1, PC210-7K, PC210LC-7K, PC210NLC-7K, PC220-7-W1, PC220LC-7, PC220LC-7-W1, PC220LC-7L, PC228US-3-KU, PC228US-3-US-3-W1, PC240LC-7K, PC240NLC-7K, PC270LC-7, PC270LC-7L, PC270LC-7MH, PC290LC-7K, PC290NLC-7K, PW200-7K

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, PW170ES-6K S/No. K30001-Up, D31EX-21 S/No. 50001-Up, D31PX-21 S/No. 50001-Up, D37EX-21 S/No. 50001-Up, D37PX-21 S/No. 50001-Up, D39EX-21 S/No. 1001-Up, D39PX-21 S/No. 1001-Up, PC160LC-7 S/No. 10001-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, PC220LC-6 S/No. A82001-Up, PC240NLC-6K S/No. K30001-Up, PC250LC-6 S/No. A82001-Up, GD555-3C S/No. 50001-Up, PC270LC-6 S/No. A83001-Up, PC290LC-6K S/No. K30001-Up, PC290NLC-6K S/No. K30001-Up, PC200-7-W1 S/No. 200001-Up, PC200LC-7 S/No. 200001-Up, PC200LC-7B S/No. C50001-Up, PC200LC-7L S/No. A86001-Up, PC200LC-7-US / W1 S/No. 200001-Up, PC210-7K S/No. K40001-Up, PC210LC-7K S/No. K40001-Up, PC210NLC-7K S/No. K40001-Up, PC220-7-W1 S/No. 60001-Up, PC220LC-7 S/No. 60001-Up, PC220LC-7-W1 S/No. 60001-Up, PC220LC-7L S/No. A60001-Up, PC228US-3-KU S/No. 20001-Up, PC228US-3-US-3-W1 S/No. 20001-Up, PC240LC-7K S/No. K40001-Up, PC240NLC-7K S/No. K40001-Up, PC270LC-7 S/No. A86001-Up, PC270LC-7L S/No. A86001-Up, PC290LC-7K S/No. K40001-Up, PC290NLC-7K S/No. K40001-Up, PW200-7K S/No. K40001-Up

How do I confirm fitment?

Match 6731-21-8610 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 6731-21-8610 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.