Hydraulic Coupler Description
This Hydraulic Coupler is indexed for Part Number; Hitachi Excavator EX100-3 EX200-3 Single Pump Coupling Assy 4310056; Hyd.Pump shaft to Engine Flywheel. Compare reference number 4310056 against the label on your existing Hitachi component before ordering.
Before checkout, compare OEM part number 4310056, 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.




