OEM Pump for Komatsu PC4000 (ref. 705-51-31210)
A main hydraulic pump generates the high-pressure oil flow that powers the machine hydraulic functions. Hydraulic pumps fail mainly from fluid contamination and wear of the pistons, swash plate and valve plate, which shows as falling flow, pressure loss and overheating.
Key facts
- Part: Pump, new replacement for Komatsu PC4000
- Komatsu OEM ref.: 705-51-31210 (also written 7055131210)
- Interchangeable references: none listed (single reference)
- Fits: Komatsu PC4000 (mining excavator)
- Condition: New, to OEM specification
- HD Mining Parts SKU: KMP-P-38OFY2Y
- 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 705-51-31210?
It is the pump for Komatsu PC4000; HD Mining Parts supplies a new replacement under SKU KMP-P-38OFY2Y.
How is this pump supplied?
New, to OEM specification, with compatibility confirmed by part number before shipping.
Request Komatsu OEM ref. 705-51-31210, or browse all Hydraulic Pumps and Komatsu PC4000 spare parts, or request a quotation.