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RITO Variable Displacement Pump 9121916 EX300LCH-2 HPV145 Tandem Pump 9121943 9121942 EX300-2 Excavator Main Pump Assy

EX300LCH-2 and EX300-2 excavators operating in continuous mining or earthmoving work often face reduced hydraulic efficiency, especially during rapid load changes and multi-function operation. RITO 9121916 HPV145 Variable Displacement Tandem Pump Assembly is applied as a replacement solution to restore stable hydraulic output across the machine system.

  • Item NO.:

    9121943 9121942
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

9121943 Hydraulic Pump

 
Product Specifications

Part Number 
9121943
Part Name Hydraulic Pump
Compatible Brand Hitachi
Applicable Models EX300-2, EX300LCH-2
Application Excavator
Material Forged Alloy Steel Housing
Product Color Industrial Grey
Working Temperature -25°C to 95°C
Key Function Restores hydraulic system pressure and flow stability
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Adaptive Hydraulic Output Control

Maintains balanced pressure delivery according to real-time load demand.

Leak-Free

HPV145 Tandem Variable Displacement System

Ensures coordinated dual-pump operation for stable hydraulic performance.

Direct Fitment

Improved Load Transition Smoothness

Reduces hesitation during sudden changes in working conditions.

Rigorous Testing

Suitable for EX300 Series Fleet Maintenance

Used for EX300-2 and EX300LCH-2 hydraulic system restoration.

Excavator Hydraulic Part

FAQ


QWhat indicates hydraulic instability in EX300LCH-2 machines?
A: Slow cycle speed, weak digging force, pressure fluctuation, and uneven multi-function response.
 
QWhat should be checked before installation?
A: Hydraulic oil cleanliness, suction line condition, shaft alignment, and system sealing.
 
Q: Is this suitable for continuous mining use?
A: Yes, it is designed for long-hour heavy-duty excavation environments.
 
Q: Why is variable displacement important in excavators?
A: Because it automatically adjusts flow output, improving efficiency and operational stability.
 
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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