Komatsu Key 04010-00725

The Komatsu Key 04010-00725 is identified in the supplied parts catalog as a CRANKSHAFT & RELATED PARTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include SA6D125E-3B-7 & SAA6D125E-3, SA6D125E-3B-7/8 & SAA6D125E-3, SAA6D125E-5A/B/C, and S6D140-1. Listed machine applications include D65EX-12-E, WA470-5H, D65P-12-E, WA480-5L, and D65PX-12-E. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 04010-00725 used for?

Part number 04010-00725 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

SA6D125E-3B-7 & SAA6D125E-3, SA6D125E-3B-7/8 & SAA6D125E-3, SAA6D125E-5A/B/C, S6D140-1, SA6D140-1, SA6D140E-3 & SDA6D140E-3, SAA6D140E-5A/B/C, SDA12V140-1, SAA12V140E-3

Engine models with serial-number ranges

SA6D125E-3B-7 & SAA6D125E-3 (Build 10K) ? 310001-Up | SA6D125E-3B-7/8 & SAA6D125E-3 (Build 10L) ? 310001-Up | SAA6D125E-5A/B/C (Build 10M) ? 560004-Up | S6D140-1 (Build 12A) ? Not Provided | SA6D140-1 (Build 12C) ? Not Provided | SA6D140E-3 & SDA6D140E-3 (Build 12D) ? Not Provided | SAA6D140E-5A/B/C (Build 12E) ? 530001-Up | SDA12V140-1 (Build 13C) ? Not Provided | SAA12V140E-3 (Build 13E) ? Not Provided

Application models without serial numbers

D65EX-12-E, WA470-5H, D65P-12-E, WA480-5L, D65PX-12-E, WA480-5-W, D85EX-15, PC400LC-7L, HM300-1, WA450-5L, WA450-5-W, WA480-5, D85PX-15EO, WA450, WA470, WA480-6, WA500-1, WA500-1L, WA500-3, D135A-2, D155A-3, D155AX-3, GD825A-2, PC650-3, PC650LC-3, PC650SE-3, PC650-5, PC650E-5, PC650LC-5, PC650SE-5, PC710-5 / SE-5, PC1600-1, HD325-5, HD325-6/6W, 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, PC600-6K, WA500-3H, PC600LC-6A-CA / KJ / W1, WA500-3LK, D27AX-5EO, PC600LC-8, WA500-7, D475A-3RP, HD785-7, PC2000, WA900

Applications with serial-number ranges

D65EX-12-E S/No. 60942-Up, WA470-5H S/No. 50051-Up, D65P-12-E S/No. 60884-Up, WA480-5L S/No. A37001-Up, D65PX-12-E S/No. 60884-Up, WA480-5-W S/No. 80001-Up, D85EX-15 S/No. 10001-Up, PC400LC-7L S/No. A86001-Up, HM300-1 S/No. 1001-Up, WA450-5L S/No. A36001-Up, WA450-5-W S/No. 70001-Up, WA480-5 S/No. H50051-Up, WA500-1 S/No. 10001-Up & A20131-Up, WA500-1L S/No. A20854-Up, WA500-3 S/No. 50001-Up, D135A-2 S/No. 10301-Up, D155A-3 S/No. 60001-Up, D155AX-3 S/No. 60001-Up, GD825A-2 S/No. 11001-Up, PC650-3 S/No. 10501-Up, PC650LC-3 S/No. 10501-Up, PC650SE-3 S/No. 10501-Up, PC650-5 S/No. 20001-Up, PC650E-5 S/No. 20001-Up, PC650LC-5 S/No. 20001-Up, PC650SE-5 S/No. 20001-Up, PC710-5 / SE-5 S/No. 10001-Up, PC1600-1 S/No. 10063-Up, HD325-5 S/No. 2001-Up & A3027-Up, HD325-6/6W S/No. 5001-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, 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, D475A-3RP S/No. 10601-Up

How do I confirm fitment?

Match 04010-00725 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 04010-00725 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.