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RITO Main Hydraulic Pump Assembly 9249785 ZX850-3 K3V280 Variable Displacement Pump 9249786 4635645 Piston Pump Assy

Are high fuel bills cutting into your mining margins? Inefficient large-displacement pumps waste energy by dumping excess oil, driving up costs. Protect your bottom line with our ZX850-3 variable displacement pump, designed to adjust flow dynamically to real-time workloads.

  • Item NO.:

    9249785 9249786 4635
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

This high-efficiency K3V280 9249785 9249786 4635645 piston pump assy optimizes engine output. Perfect for fleet distributors, it cuts fuel waste and controls oil temperatures, ensuring reliable performance in demanding environments.

9249785 Hydraulic Pump

 
Product Specifications

Part Number  9249785, 9249786, 4635645
Part Name Variable Displacement Main Hydraulic Pump
Compatible Brand Hitachi
Applicable Models ZX850-3 Excavator
Application Excavator hydraulic system
Material High Tensile Nodular Cast Iron and Hardened Alloy Steel
Product Color Industrial Gray
Working Temperature -20 to 120 degrees Celsius
Key Function Modulates fluid volume to optimize engine power use during heavy digging
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Smart Variable Displacement

Automatically adjusts fluid delivery to match real-time load requirements, saving fuel.

Leak-Free

Massive Flow Output

High-capacity displacement design ensures fast cycle times for large-scale mining buckets.

Direct Fitment

Upgraded Swashplate Bearings

Heavy-duty cradle bearings extend pump life under high operating pressures.

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: How does the variable displacement control on the 9249785 pump improve cycle times?
A: The K3V280 control valve system senses load variations instantly. It increases fluid flow when resistance drops to speed up empty bucket movements, and increases torque during heavy digging to maximize efficiency.
 
Q: What maintenance steps prevent the 4635645 piston pump assy from overheating?
A: Check that the case drain line is clear and clean the main hydraulic oil cooler regularly. If the case drain line becomes restricted, internal pressure builds up and damages the shaft seal, leading to overheating.
 
Q: Can we purchase this assembly as a certified replacement for international projects?
A: Yes, we regularly export this assembly worldwide. We handle all international shipping documentation and export compliance to ensure smooth customs clearance at your destination port.
 
Q: How do you test the pressure compensation settings on this mining pump?
A: Every pump is calibrated on our specialized high-horsepower test bench, where we check the flow cut-off points against original factory specifications to ensure optimal performance right out of the box.
 
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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