Main pump case drain overheating or pressure hunting on your PC95-1? The 21D-60-12000 HPV75 barrel and valve plate wear together, letting hot oil slip past the sealing faces. RITO replaces the complete rotating group so your PC95-1 runs cool and holds rated pressure under full load.
Item NO.:
21D-60-12000Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock21D-60-12000 Hydraulic Main Pump for Komatsu PC95-1 with HPV75 variable displacement piston pump. New rotating group and matched valve plate eliminate the bypass that drives up oil temperature.
| Part Number | 21D-60-12000 |
|---|---|
| Part Name | Excavator Hydraulic Main Pump (Piston Pump) |
| Compatible Brand | Komatsu (HPV75 Piston Pump) |
| Applicable Models | PC95-1 Excavator |
| Application | Main hydraulic pump for PC95-1 excavator all-function operation |
| Material | High-strength alloy steel |
| Product Color | Metallic industrial finish |
| Working Temperature | -25°C~+60°C |
| Key Function | Generates main hydraulic flow and pressure for PC95-1 work circuits |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
The 21D-60-12000 cylinder block, pistons and piston shoes are machined to HPV75 OEM clearance, restoring volumetric efficiency and cutting the internal bypass that drives oil temperature up on the PC95-1.
Barrel face and valve plate are surface-matched to Ra 0.2 during assembly, eliminating the break-in leakage phase that reduces new-pump efficiency on the PC95-1 HPV75 circuit.
The HPV75 regulator is pre-set to the PC95-1 engine power curve, preventing engine overload during combined boom, swing and travel demand without field adjustment.
21D-60-12000 port configuration, flange bolt circle and spline engagement are confirmed for the PC95-1, providing direct bolt-on installation without adaptor blocks or hose rerouting.
FAQ
Q: What symptoms indicate the 21D-60-12000 pump needs replacing on a PC95-1?
A: Main circuit pressure falls below specification on a gauge test, all functions slow simultaneously at rated engine speed, HPV75 case-drain flow exceeds the OEM limit, oil temperature rises faster than normal, and metal particles appear in the hydraulic oil.
Q: Should I replace the valve plate when fitting the new 21D-60-12000 pump?
A: This 21D-60-12000 assembly includes a new matched valve plate and rotating group, so the sealing interface is correct from installation. No additional valve plate replacement is required.
Q: Does the 21D-60-12000 pump fit other Komatsu models besides the PC95-1?
A: Cross-reference numbers 21D-60-12000 apply. The 21D-60-12000 pump is dimensionally matched to the HPV75 pump application; confirm your machine serial number with our team if you are unsure of compatibility.
Q: How to confirm the 21D-60-12000 is the correct pump for my PC95-1?
A: Match the pump model plate reading 21D-60-12000 and confirm the machine model is PC95-1. Provide the pump and machine serial numbers to our team for exact cross-reference confirmation.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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