Main hydraulic pressure dropping or slow cycle times on your PC5500? A worn 96785040 pump lets the rotating group bypass internally, starving every circuit. RITO rebuilds this main pump to OEM clearances so your machine's dig force and speed come back from the first hour.
Item NO.:
96785040Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock96785040 Excavator Main Hydraulic Pump for PC5500. Precision-machined barrel bores and lapped valve face restore volumetric efficiency, while the factory-calibrated regulator maintains stable pressure-flow output across the full working range.
| Part Number | 96785040 |
|---|---|
| Part Name | Excavator Hydraulic Main Pump (Piston Pump) |
| Compatible Brand | PC5500 Main Pump |
| Applicable Models | PC5500 Excavator |
| Application | Main hydraulic pump for PC5500 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 PC5500 work circuits |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
The 96785040 cylinder block, pistons and shoes are machined to OEM clearance, restoring volumetric efficiency on the PC5500.
Barrel face and valve plate are surface-matched to Ra 0.2, eliminating break-in leakage on the PC5500 main circuit.
The regulator is pre-set to the PC5500 engine power curve, preventing overload during combined boom, swing and travel demand.
96785040 port configuration and flange are confirmed for the PC5500, providing direct bolt-on installation.
FAQ
Q: What symptoms indicate the 96785040 pump needs replacing on a PC5500?
A: Main circuit pressure falls below specification, all functions slow simultaneously, case-drain flow exceeds the OEM limit, and oil temperature rises faster than normal.
Q: Does the 96785040 pump include a matched valve plate?
A: Yes, this 96785040 assembly includes a new matched valve plate and rotating group, so the sealing interface is correct from installation.
Q: What other models does the 96785040 pump fit?
A: Cross-reference keywords 96785040 / Komatsu Main Pump / PC5500 Hydraulic Pump / Excavator Main Pump / Variable Displacement Pump / Piston Pump Unit apply. Confirm your machine serial number with our team to verify compatibility with other models.
Q: How to confirm the 96785040 is the correct pump for my PC5500?
A: Match the pump model plate reading 96785040 and confirm the machine is PC5500. Provide pump and machine serial numbers to our team for exact 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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