Cat

CAT 145-4878 10R-0555 Hydraulic Piston Pumps for Track-type bulldozer D11R

HENGYUHANG Plunger Pump 145-4878 / 10R-0555 – A Perfect Replacement for CAT Hydraulic Plunger Pump


In high-pressure hydraulic systems used in construction machinery, mining equipment, and industrial applications, the CAT hydraulic plunger pump has long been trusted for its durability and stable performance. CAT hydraulic plunger pumps are widely installed in heavy-duty equipment around the world. However, high replacement costs and long lead times for original CAT parts have become increasing challenges for equipment owners.


The HENGYUHANG plunger pump 145-4878 / 10R-0555 is engineered as a perfect replacement for CAT hydraulic plunger pump, offering OEM-level compatibility, reliable pressure output, and excellent cost efficiency. It delivers performance equal to the original CAT hydraulic plunger pump while helping customers reduce operating and maintenance expenses.


Functions of HENGYUHANG Plunger Pump 145-4878 / 10R-0555


As a direct replacement for the CAT hydraulic plunger pump, the HENGYUHANG plunger pump 145-4878 / 10R-0555 performs the following core functions:

  • Supplies high-pressure hydraulic oil to drive actuators and hydraulic motors

  • Maintains stable flow under heavy load and fluctuating operating conditions

  • Supports continuous and intermittent high-pressure operation

  • Ensures accurate hydraulic response and system control

  • Improves overall efficiency and reliability of hydraulic systems

Description

1.Technical Parameters of HENGYUHANG Plunger Pump

ParameterSpecification
Product TypeAxial Hydraulic Plunger Pump
Replacement ForCAT Hydraulic Plunger Pump
CAT Part Numbers145-4878 / 10R-0555
Rated PressureUp to 35 MPa
Maximum PressureUp to 40 MPa
Flow PerformanceHigh-efficiency, stable output
Operating SpeedOEM standard RPM
Working MediumHydraulic Oil
Operating Temperature-20°C to +90°C
Mounting InterfaceCAT standard, direct replacement
InstallationPlug-and-play, no modification required
Quality Testing100% pressure & performance tested

These technical parameters ensure that the HENGYUHANG plunger pump 145-4878 / 10R-0555 can fully replace the original CAT hydraulic plunger pump without modification.


2.Application Industries

The HENGYUHANG plunger pump and CAT hydraulic plunger pump are widely used across multiple industries, including:

  • Construction machinery (excavators, loaders, bulldozers)

  • Mining equipment

  • Industrial hydraulic systems

  • Material handling and lifting equipment

  • Agricultural and forestry machinery

  • Heavy-duty power units

The HENGYUHANG plunger pump 145-4878 / 10R-0555 is designed to operate reliably in harsh and demanding working environments.


3.Advantages of CAT Hydraulic Plunger Pump

The CAT hydraulic plunger pump has several well-recognized advantages:

  • Proven performance in heavy-duty and high-pressure applications

  • Stable hydraulic output and reliable operation

  • Strong global brand reputation

  • Long service life with proper maintenance

These strengths have made CAT hydraulic plunger pumps a standard choice for original equipment installations.


4.Limitations of CAT Hydraulic Plunger Pump

Despite its strengths, the CAT hydraulic plunger pump also has some clear limitations:

  • High purchase and replacement costs

  • Expensive spare parts and maintenance

  • Long lead times for replacement pumps

  • Increased downtime costs during repairs

Due to these disadvantages, many customers actively seek a cost-effective replacement for CAT hydraulic plunger pump.


5.Why Choose HENGYUHANG Plunger Pump?

The HENGYUHANG plunger pump 145-4878 / 10R-0555 is designed to overcome these challenges while maintaining OEM-level performance.

1. Perfect Replacement for CAT Hydraulic Plunger Pump

HENGYUHANG plunger pump is manufactured according to original CAT specifications, ensuring full compatibility with CAT hydraulic plunger pump 145-4878 and 10R-0555.

2. Excellent Cost Performance

Compared with the CAT hydraulic plunger pump, the HENGYUHANG plunger pump delivers equivalent hydraulic performance at a significantly lower total cost of ownership.

3. Stable Performance and Long Service Life

Precision machining, advanced heat treatment, and strict quality control ensure consistent pressure output and extended service life.

4. Faster Delivery and Reliable Supply

HENGYUHANG plunger pumps are available with shorter lead times, helping customers reduce downtime and improve operational efficiency.

5. 100% Quality Inspection

Each HENGYUHANG plunger pump undergoes comprehensive pressure testing and performance inspection before shipment.


6.The Ideal Alternative to CAT Hydraulic Plunger Pump

For customers seeking to reduce operating costs without sacrificing performance, the HENGYUHANG plunger pump 145-4878 / 10R-0555 is the ideal alternative. It matches the performance of the CAT hydraulic plunger pump while offering better pricing, faster delivery, and stable long-term operation.


7.Conclusion

The HENGYUHANG plunger pump 145-4878 / 10R-0555 is a reliable, high-performance replacement for CAT hydraulic plunger pump. With OEM-level compatibility, stable hydraulic output, and excellent durability, it is widely trusted in construction, mining, and industrial hydraulic applications worldwide.

Choosing HENGYUHANG plunger pump means choosing reliability, efficiency, and long-term value.

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