Main & Relief Valve Description
This Main & Relief Valve is indexed for Komatsu s: Fit For Komatsu Excavator: PC50MR-2, PC50MR-2-AC, PC45MRX-1, PC45MR-1, PC40MR-2, PC40MRX-1, PC40MR-2-AC, PC40MR-1, PC58UU-3, PC45MR-3, PC55MR-3, PC57-7, PC55MR-5, PC45MR-5, PC45MR-5M0, PC55MR-5M0. Compare reference number 723-10-12800 against the label on your existing Komatsu component before ordering.
Additional cross references on file: PC50MR-2-AC, PC45MRX-1, PC45MR-1. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.




