OEM Pressure Relief Valve for Komatsu PC3000, PC4000, PC5500 and PC8000 (ref. 798 899 73)
A pressure relief valve limits maximum system pressure to protect the hydraulic circuit. Relief valves drift from worn seats, weak springs or contamination, which changes the set pressure and can overload or starve the system.
Key facts
- Part: Pressure Relief Valve, new replacement for Komatsu PC3000, PC4000, PC5500 and PC8000
- Komatsu OEM ref.: 798 899 73 (also written 79889973)
- Interchangeable references: none listed (single reference)
- Fits: Komatsu PC3000, PC4000, PC5500 and PC8000 (mining excavator)
- Condition: New, to OEM specification
- HD Mining Parts SKU: KMP-PRV-1BKBHX
- Supplied by: HD Mining Parts (worldwide export, quote-based)
Each part is matched by reference number and technically verified before dispatch, with traceable sourcing and export-ready delivery; availability and lead time on request.
Frequently asked questions
What part is Komatsu OEM number 798 899 73?
It is the pressure relief valve for Komatsu PC3000, PC4000, PC5500 and PC8000; HD Mining Parts supplies a new replacement under SKU KMP-PRV-1BKBHX.
How is this pressure relief valve supplied?
New, to OEM specification, with compatibility confirmed by part number before shipping.
Request Komatsu OEM ref. 798 899 73, or browse all Hydraulic Valves and Komatsu PC3000 spare parts, Komatsu PC4000 spare parts, Komatsu PC5500 spare parts, Komatsu PC8000 spare parts, or request a quotation.