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RITO Excavator Main Pump Assy 9257308 ZX350H-EX HPV145 Variable Displacement Pump 9257126 9257309 Axial Piston Pump

Slow hydraulic response cripples excavator performance, leading to missed deadlines and expensive penalties. Wholesalers lose money when low-quality pumps fail in heavy-duty applications, triggering endless returns and destroying supply chain reliability.

  • Item NO.:

    9257308 9257126 9257
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

The RITO ZX350H-EX Excavator Main Pump Assy solves these issues. This HPV145 Variable Displacement Pump and Axial Piston Pump (9257308, 9257126, 9257309) provides smooth hydraulic control, restoring original factory efficiency.

9257308 Hydraulic Pump

 
Product Specifications

Part Number  9257308, 9257126, 9257309
Part Name Excavator Main Pump Assy
Compatible Brand Hitachi
Applicable Models ZX350H-EX
Application Excavator hydraulic system
Material High Tensile Nodular Cast Iron and Hardened Alloy Steel
Product Color Matte Black
Working Temperature -25 to 120 degrees Celsius
Key Function Regulates variable high-pressure hydraulic output to optimize excavator fuel consumption and speed.
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Axial Piston Precision

In-line piston configuration provides high volumetric efficiency and rapid response to pilot controls.

Leak-Free

Sustained System Pressure

Eliminates unexpected pressure drops, keeping excavator breakout force at peak factory levels.

Direct Fitment

Corrosion-Resistant Coating

Treated exterior shell prevents rust and scaling during outdoor storage and wet operations.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.
 
 

 

Excavator Hydraulic Part

FAQ

Q: What is a clear symptom of a failing variable displacement regulator?
A: The excavator engine stalling under heavy load or erratic, jerky boom movements points to valve failure.
 
Q: How do you bleed air from this pump during installation?
A: Run the excavator at low idle for 10 minutes without operating the cylinders to clear air bubbles.
 
Q: Will this pump assembly fit a standard Hitachi ZX350H-EX model?
A: Yes, it is direct-matched to OEM part numbers 9257308, 9257126, and 9257309 for zero-gap fitment.
 
Q: How does the axial piston design perform in freezing mining sites?
A: The durable casting allows safe operation down to -20°C, provided the hydraulic oil is preheated.
 
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.

Leave A Message

Leave A Message
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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