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
| Parameter | Specification |
|---|---|
| Product Type | Axial Hydraulic Plunger Pump |
| Replacement For | CAT Hydraulic Plunger Pump |
| CAT Part Numbers | 145-4878 / 10R-0555 |
| Rated Pressure | Up to 35 MPa |
| Maximum Pressure | Up to 40 MPa |
| Flow Performance | High-efficiency, stable output |
| Operating Speed | OEM standard RPM |
| Working Medium | Hydraulic Oil |
| Operating Temperature | -20°C to +90°C |
| Mounting Interface | CAT standard, direct replacement |
| Installation | Plug-and-play, no modification required |
| Quality Testing | 100% 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.
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.
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.
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.
The HENGYUHANG plunger pump 145-4878 / 10R-0555 is designed to overcome these challenges while maintaining OEM-level performance.
HENGYUHANG plunger pump is manufactured according to original CAT specifications, ensuring full compatibility with CAT hydraulic plunger pump 145-4878 and 10R-0555.
Compared with the CAT hydraulic plunger pump, the HENGYUHANG plunger pump delivers equivalent hydraulic performance at a significantly lower total cost of ownership.
Precision machining, advanced heat treatment, and strict quality control ensure consistent pressure output and extended service life.
HENGYUHANG plunger pumps are available with shorter lead times, helping customers reduce downtime and improve operational efficiency.
Each HENGYUHANG plunger pump undergoes comprehensive pressure testing and performance inspection before shipment.
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.
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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