Hydraulic output instability in EX400-series excavators can quickly turn into slower cycle performance, uneven digging force, and rising operating costs during long shifts. The 4352970 variable displacement pump is developed to restore controlled hydraulic delivery, keeping system pressure steady and ensuring reliable power availability when the machine is pushed under continuous load.
Item NO.:
9129693 9153952Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYS
| Part Number |
|
|---|---|
| Part Name | Hydraulic Pump |
| Compatible Brand | Hitachi |
| Applicable Models | EX400LC-5, EX400-5 |
| Application | Excavator |
| Material | Reinforced Alloy Steel |
| Product Color | Industrial Gray |
| Working Temperature | -30°C to +100°C |
| Key Function | Converts engine torque into regulated hydraulic flow for excavator systems |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |
Responds directly to load changes, keeping system performance stable instead of overfeeding or underfeeding flow.
Hydraulic paths operate in balance, reducing mismatch between different working functions.
Designed for long operating hours in quarry and mining conditions without performance drop.
FAQ
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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