Komatsu Key 6150-31-1130

The Komatsu Key 6150-31-1130 is identified in the supplied parts catalog as a CRANKSHAFT & RELATED PARTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S6D125-1, S6D125E-2 & SA6D125E-2, SA6D125-1, and SAA6D125E-6. Listed machine applications include D65EX-12, D65PX-12, D75A-1, D75S-5, and D85A-21. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6150-31-1130 used for?

Part number 6150-31-1130 is cataloged as a Key. 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

S6D125-1, S6D125E-2 & SA6D125E-2, SA6D125-1, SAA6D125E-6, SA6D140E-3 & SDA6D140E-3

Engine models with serial-number ranges

S6D125-1 (Build 10D) ? Not Provided | S6D125E-2 & SA6D125E-2 (Build 10G) ? Not Provided | SA6D125-1 (Build 10H) ? Not Provided | SAA6D125E-6 (Build 10N) ? Not Provided | SA6D140E-3 & SDA6D140E-3 (Build 12D) ? Not Provided

Application models without serial numbers

D65EX-12, D65PX-12, D75A-1, D75S-5, D85A-21, PC450-6-T2 / LC-6-T2, D85A-21B, PC450LC-6K-KE, D85C-21A / C-21D, PW400MH-6, D85E-21, D85P-21, D87P-2, HD255-5, WA450-3 / 3A-TW, WA450L-3, PC400-6 / 6C / 6Z, PC400-6-T2 / LC6-T2, PC400LC-6, PC400LC-7L, PC450-6-A1 / LC-6-A1, PC450-6K-J / LC-6K-J, PC450-6K-KE, D135A-1, HM300-3, WA470-7, D155AX-5, PC-750-6-AW, HD325-6, PC-750LC-6-AW, HD405-6, PC750LC-6K-01 / SE-6K-01, HM350-1, PC-750SE-6-AW, HM400-1, PC800-6-AW / SE-6-AW 30001-Up, D275AX-5, PC1800-6-T2, PC600-6A-KJ / 6A-W1, WA500-3, PC600-6K, WA500-3H, PC600LC-6A-CA / KJ / W1, WA500-3LK

Applications with serial-number ranges

D65EX-12 S/No. 60001-60941, D65PX-12 S/No. 60001-60883, D75A-1 S/No. 50001-Up, D75S-5 S/No. 15001-Up, D85A-21 S/No. 36534-Up, PC450-6-T2 / LC-6-T2 S/No. 10001-Up, D85A-21B S/No. 36537-Up, PC450LC-6K-KE S/No. 32106-Up, D85C-21A / C-21D S/No. 36551-Up, PW400MH-6 S/No. A84210-Up, D85E-21 S/No. 36534-Up, D85P-21 S/No. 3689-Up, D87P-2 S/No. P092001-Up, HD255-5 S/No. 1001-Up, WA450-3 / 3A-TW S/No. 53001-Up, WA450L-3 S/No. 53001-Up, PC400-6 / 6C / 6Z S/No. 30001-Up, PC400-6-T2 / LC6-T2 S/No. 30001-Up, PC400LC-6 S/No. 30001-Up, PC400LC-7L S/No. A86001-Up, PC450-6-A1 / LC-6-A1 S/No. 10001-Up, PC450-6K-J / LC-6K-J S/No. 10001-Up, PC450-6K-KE S/No. 32106-Up, D135A-1 S/No. 10001-Up, D155AX-5 S/No. 70001-Up, PC-750-6-AW S/No. 11001-Up, HD325-6 S/No. 5001-Up, PC-750LC-6-AW S/No. 11001-Up, HD405-6 S/No. 1001-Up, PC750LC-6K-01 / SE-6K-01 S/No. K30001-Up, HM350-1 S/No. 1001-Up, PC-750SE-6-AW S/No. 11001-Up, HM400-1 S/No. 1001-Up, D275AX-5 S/No. 20001-Up, PC1800-6-T2 S/No. 10001-Up, PC600-6A-KJ / 6A-W1 S/No. 10001-Up, WA500-3 S/No. 50001-Up, PC600-6K S/No. K30001-Up, WA500-3H S/No. 20051-Up, PC600LC-6A-CA / KJ / W1 S/No. 10001-Up, WA500-3LK S/No. 71001-Up

How do I confirm fitment?

Match 6150-31-1130 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 6150-31-1130 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.