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RITO 400914-00012 40091400012 Hydraulic Main Pump DX225 DX225YYB DX225LC Excavator Piston Pump Assembly K3V112DT Unit Assy

DX225 series excavators rely heavily on a stable piston pump system to maintain digging force and cycle efficiency. The RITO 400914-00012 / 40091400012 main hydraulic pump, built on the K3V112DT platform, is developed for DX225 DX225YYB DX225LC machines to deliver controlled hydraulic output and steady pressure behavior during continuous excavation work.

  • Item NO.:

    DX225YYB
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Inside the hydraulic system, this pump assembly plays a key role in converting engine power into consistent oil flow for all working functions. When installed in rebuild or replacement scenarios, it helps reduce pressure fluctuation, restores actuator responsiveness, and supports reliable machine performance in demanding construction and earthmoving environments.

 

DX225 Hydraulic Pump

 
Product Specifications

Part Number  DX225YYB
Part Name Hydraulic Pump
Compatible Brand Doosan
Applicable Models DX225 DX225YYB DX225LC
Application Excavator
Material Alloy Steel Housing + Precision Hydraulic Components
Product Color Industrial Grey
Working Temperature -40°C to 135°C
Key Function Generate and regulate hydraulic system pressure
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Consistent Hydraulic Output Behavior

Maintains stable oil delivery to ensure smooth operation of boom, arm, and bucket functions.

Leak-Free

Integrated Pump Structure for System Stability

Complete assembly design helps reduce internal mismatch and improves operational reliability.

Direct Fitment

Supports Continuous Heavy-Load Operation

Performs reliably in long working cycles with high-pressure excavation demands.

Rigorous Testing

Matched for DX225 Hydraulic Platforms

Compatible with DX225 DX225YYB DX225LC excavator systems.

 

Excavator Hydraulic Part

FAQ


Q: What indicates a failing hydraulic main pump?
A: Weak digging force, slow hydraulic response, pressure instability, or overheating may occur.
 
Q: What usually causes pump performance decline?
A: Oil contamination, internal wear, overload operation, or insufficient lubrication.
 
QWhat should be checked before installation?
A: Hydraulic oil cleanliness, suction line condition, coupling alignment, and sealing surfaces.
 
Q: Can replacement restore machine performance?
A: Yes, a correctly installed pump can significantly improve hydraulic power and response speed.
 
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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