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RITO Hydraulic Pump 426 428F 416E 416F 422F Ming Excavator Spare Part Hydraulic Main Pump 3073063 Pump Gp-piston 307-3063

Sluggish loader arm lift and slow steering response on your 428F show internal piston block scoring. When your primary pump loses flow efficiency, cycle times double and your engine burns excessive fuel trying to maintain speed.

  • Item NO.:

    307-3063
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Regain snappy multi-function performance with this premium 428F axial piston main pump. Built to replace 307-3063, it delivers reliable variable high-pressure fluid flow to keep backhoe loader fleets profitable.

307-3063 Hydraulic Pump

 
Product Specifications

Part Number  307-3063 / 3073063
Part Name Variable Displacement Hydraulic Piston Main Pump Group
Compatible Brand CAT
Applicable Models 426, 428F, 416E, 416F, 422F Backhoe Loaders
Application Excavator hydraulic system
Material High Tensile Nodular Cast Iron and Hardened Alloy Steel
Product Color Technical Grey Frame
Working Temperature -25 to 115 degrees Celsius
Key Function Variable Flow Hydraulic Power Generation for Front Loader and Rear Backhoe Kinematics
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Load-Sensing Flow Regulation

Adjusts pump oil output automatically based on instantaneous valve demands to minimize engine drag and lower fuel consumption.

Leak-Free

Bronze-Faced Piston Cylinder Blocks

Reduce friction friction and thermal wear to prevent sudden pump seizure during sub-zero morning startups.

Direct Fitment

Nitrided Alloy Piston Assemblies

Resist micro-abrasive contamination within the hydraulic system to maintain stable pressure holding capacities.

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 specific initial installation step must technicians perform to prevent dry-running this 307-3063 pump?
A: Technicians must manually fill the pump housing with clean, filtered hydraulic oil through the top case drain port before starting the engine.
 
Q: What structural failure mode causes a backhoe loader pump to drop its pressure output when the oil gets hot?
A: This drop is usually caused by excessive clearance wear between the valve plate and the cylinder barrel face, allowing internal bypass.
 
Q: Is this piston pump configuration fully compatible with standard mineral-based ISO VG 46 hydraulic fluids?
A: Yes, its advanced sealing matrix is engineered to work perfectly with standard anti-wear mineral and synthetic hydraulic oils.
 
Q: How do the internal swashplate bearings on this model handle continuous rapid cycling under full loader bucket loads?
A: The pump utilizes cradle-type bearings with reinforced cages that distribute thrust loads evenly to prevent micro-fracturing.
 
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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