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RITO Excavator Variable Displacement Pump 504-5477 E336D 5045477 Construction Machinery Heavy Duty Part Main Hydraulic Pump Assembly

Hydraulic pump failure can lead to low excavator efficiency, unstable operation, and unexpected downtime, creating serious challenges for contractors, mining companies, and parts distributors. 504-5477 Excavator Main Hydraulic Pump is developed for E336D construction machinery, providing stable hydraulic output, precise flow control, and reliable power transmission for heavy-duty excavation applications. It helps customers maintain productivity and reduce maintenance costs.

  • Item NO.:

    504-5477
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Compared with ordinary replacement pumps, this variable displacement pump assembly delivers excellent compatibility, consistent hydraulic pressure, and efficient performance under demanding working conditions. Designed for E336D excavators, it supports smooth digging, lifting, and traveling operations while extending hydraulic system reliability. RITO supplies professional hydraulic solutions with strict quality inspection and accurate model matching support for global wholesalers, agents, and mining customers.

504-5477 Hydraulic Pump

 
Product Specifications

Part Number  504-5477 / 5045477
Part Name Excavator Hydraulic Pump
Compatible Brand CAT
Applicable Models E336D Excavator
Application Excavator hydraulic system
Material High-strength alloy steel and precision hydraulic components
Product Color Yellow (Original Equipment Appearance)
Working Temperature -20°C to 80°C
Key Function Provides hydraulic power supply, pressure regulation, and stable oil flow for excavator working systems
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High Pressure Hydraulic Performance

Delivers stable hydraulic power and consistent pressure output for continuous excavator operation in construction and mining environments.

Leak-Free

Variable Displacement Technology

Provides flexible flow adjustment according to workload requirements, improving hydraulic efficiency and reducing energy loss.

Direct Fitment

Accurate Model Matching

Compatible with 504-5477 and E336D excavator systems to ensure proper installation and dependable operation.

Rigorous Testing

Durable Replacement Solution

Designed with strong components and tested performance to minimize downtime and support long-term equipment maintenance.

 

Excavator Hydraulic Part

FAQ


Q:  What are the common failure symptoms of a 504-5477 hydraulic pump?
A: Typical problems include slow excavator movement, weak digging force, unstable hydraulic pressure, abnormal noise, overheating, and hydraulic oil leakage. Early inspection helps prevent larger system failures.
 
Q: What technical requirements should be checked before installing this hydraulic pump?
A: Confirm the pump model, mounting dimensions, hydraulic port connections, rotation direction, and system pressure specifications to ensure correct installation and stable performance.
 
Q: How can buyers verify compatibility with their E336D excavator?
A: Check the OEM part number, machine model, hydraulic system information, and original pump details. Professional matching confirmation can help avoid incorrect purchases and installation problems.
 
Q: How does this hydraulic pump perform in mining and extreme working conditions?
A: The pump is designed for heavy-duty applications and provides reliable hydraulic output under high-load operations, long working hours, and challenging construction environments.
 
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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