Bearing, Gear & Shaft Description
This Bearing, Gear & Shaft is indexed for Komatsu Fit for Komatsu Dump Truck: HM300, HM400, HM400-3, HM400-3M0, HM400-5, HM400-5E0, HM500. Compare reference number 56B2031000 against the label on your existing Komatsu component before ordering.
Before checkout, compare OEM part number 56B2031000, 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.




