Main & Relief Valve Description
This Main & Relief Valve is indexed for Part Number; Komatsu Excavator PC100-6 PC128UU-1 Relief Valve 723-30-56100; BZ200-1 S/N 1006-UP PC100L-6 S/N 15001-UP PC100-6 S/N 40001-UP PC100-6E S/N 40001-UP PC100-6S S/N 40001-UP PC128UU-1 S/N 1001-UP. Compare reference number 723-30-56100 against the label on your existing Komatsu component before ordering.
Before checkout, compare OEM part number 723-30-56100, 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.
