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RITO Excavator Main Pump 9124723 EX1100 NV270 Construction Machinery Part 4237776 4289655 4263772 EX1100BE Axial Piston Pump

When EX1100-class excavators start showing inconsistent hydraulic force or delayed multi-function response, it usually signals that the main pump can no longer maintain system balance. RITO 9124723 EX1100 NV270 Hydraulic Main Pump is positioned for full-performance restoration in heavy mining and large construction equipment.

  • Item NO.:

    4237776 4289655 4263
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

4237776 Hydraulic Pump

 
Product Specifications

Part Number 
4237776
Part Name Hydraulic Pump
Compatible Brand Hitachi
Applicable Models EX1100, EX1100BE
Application Excavator
Material Heat-Resistant Alloy Steel
Product Color Industrial Grey
Working Temperature -25°C to 90°C
Key Function Restores hydraulic system pressure balance and excavator working efficiency
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

System-Level Hydraulic Rebalancing

Helps recover overall machine responsiveness instead of only replacing single-component output.

Leak-Free

High-Load NV270 Architecture

Built for large excavators requiring sustained pressure stability during deep excavation and rock handling.

Direct Fitment

Reduced Pressure Fluctuation Behavior

Improves operational smoothness during simultaneous digging, swinging, and lifting actions.

Rigorous Testing

Designed for Industrial Downtime Reduction

Focuses on minimizing machine stoppage time in mining and bulk earthmoving operations.

 

Excavator Hydraulic Part

FAQ


QWhat indicates that the hydraulic system is no longer stable?
A: Uneven digging force, delayed response between functions, and fluctuating operating pressure.
 
QWhat preparation is required before installation?
A: Confirm oil cleanliness level, check suction line sealing, and verify coupling alignment accuracy.
 
Q: Is this suitable for extreme mining conditions?
A: Yes, it is intended for continuous heavy-load environments with long operating cycles.
 
Q: Why is hydraulic balance more important than simple pressure output?
A: Because unstable flow affects all machine functions, not just digging force, reducing overall efficiency.
 
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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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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