Main & Relief Valve Description
This Main & Relief Valve is indexed for Part Number; Komatsu Excavator PC200-1 PC220-1 Main Relief Valve 700-90-51001. Compare reference number 700-90-51001 against the label on your existing Komatsu component before ordering.
Before checkout, compare OEM part number 700-90-51001, 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.




