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RITO Excavator Main Pump Assy 9124723 EX1100BE NV270 Excavator Spare Parts Assy 4237776 4289655 4263772 Axial Piston Pump

Large-tonnage excavators such as EX1100BE require stable hydraulic energy distribution to maintain consistent digging force and smooth multi-function operation. RITO 9124723 EX1100BE NV270 Main Hydraulic Pump Assembly is developed for high-load working environments where pressure fluctuation and power loss directly affect productivity.

  • 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 EX1100BE
Application Excavator
Material High-Strength Heat-Treated Alloy Steel
Product Color Industrial Grey
Working Temperature -25°C to 95°C
Key Function Restores hydraulic system pressure balance and machine operating efficiency
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Hydraulic Stability Restoration Design

Helps recover balanced system pressure and improves overall excavator responsiveness during operation.

Leak-Free

NV270 High-Load Piston Architecture

Provides strong internal durability for large excavators working under continuous heavy-duty cycles.

Direct Fitment

Improved Energy Flow Consistency

Reduces irregular pressure spikes, ensuring smoother machine movement control.

Rigorous Testing

Optimized for EX1100BE Heavy Equipment Use

Suitable for mining and large construction environments requiring long-hour hydraulic reliability.

 

Excavator Hydraulic Part

FAQ


QWhat are typical signs of hydraulic instability in EX1100BE?
A: Reduced digging force, delayed response, uneven actuator movement, and pressure fluctuation.
 
QWhat must be inspected before installation?
A: Check hydraulic oil cleanliness, suction line integrity, coupling alignment, and system sealing condition.
 
Q: Is this suitable for continuous mining operations?
A: Yes, it is designed for long-duration heavy-load environments with stable hydraulic output.
 
Q: Why is hydraulic system balance critical in large excavators?
A: Because imbalance affects all machine movements, reducing efficiency and increasing mechanical stress.
 
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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