Main & Relief Valve Description
This Main & Relief Valve is indexed for Komatsu Fit for Komatsu Excavator PC150-5,PC180NLC-5K,PC180LC-5K,PC180LLC-5K,PW170-5K. Compare reference number 709-80-52900 against the label on your existing Komatsu component before ordering.
Before checkout, compare OEM part number 709-80-52900, 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.




