Crankshaft Description
This Crankshaft is indexed for Part Number; Komatsu Excavator PC15-3 PC20-7 PC25-1 PC30-7 See Details: 3D84-2E S/N 00292-UP PC30-7 S/N 18001-UP, PC30R-7 S/N 18001-UP 3D84-2D S/N 00292-UP PC25-1 S/N 1001-UP, PC25R-1 S/N 1001-UP 3D84N-2K S/N 03157-UP PC15-3 S/N 5001-UP 3D84N-2H S/N 03157-UP PC20-7 S/N 35001-UP. Compare reference number YM729120-21700 against the label on your existing Komatsu component before ordering.
Before checkout, compare OEM part number YM729120-21700, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.




