Main & Relief Valve Description
This Main & Relief Valve is indexed for Part Number; Komatsu ExcavatorPC100-6 PC120-6 Main Relief Valve723-30-50101. Compare reference number 723-30-50101 against the label on your existing Komatsu component before ordering.
Before checkout, compare OEM part number 723-30-50101, 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.




