HENGYUHANG Plunger Pump 100-3259 / 0R-9645 – A Perfect Replacement for CAT Hydraulic Plunger Pump
In high-pressure hydraulic systems used in construction, mining, and industrial machinery, the CAT hydraulic plunger pump is widely recognized for its stable performance and durability. CAT hydraulic plunger pumps are commonly installed in heavy-duty equipment where reliability and continuous operation are essential. However, the high cost and long delivery time of original CAT parts have become major concerns for equipment owners worldwide.
The HENGYUHANG plunger pump 100-3259 / 0R-9645 is engineered as a perfect replacement for CAT hydraulic plunger pump, offering OEM-level compatibility, stable hydraulic output, and excellent cost efficiency. It delivers the same performance as the original CAT hydraulic plunger pump while helping customers significantly reduce operating and maintenance costs.
Functions of HENGYUHANG Plunger Pump 100-3259 / 0R-9645
As a direct replacement for the CAT hydraulic plunger pump, the HENGYUHANG plunger pump 100-3259 / 0R-9645 performs the following key functions:
Supplies high-pressure hydraulic oil to actuators and hydraulic motors
Maintains stable flow under heavy load and variable working conditions
Supports continuous and intermittent high-pressure operation
Ensures accurate hydraulic response and precise 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 | 100-3259 / 0R-9645 |
| 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 100-3259 / 0R-9645 can fully replace the original CAT hydraulic plunger pump without any modification.
The HENGYUHANG plunger pump and CAT hydraulic plunger pump are widely used in various 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 100-3259 / 0R-9645 is designed to operate reliably in harsh and demanding working environments.
The CAT hydraulic plunger pump has several well-known advantages:
Proven performance in high-pressure and heavy-duty applications
Stable hydraulic output and consistent operation
Strong global brand reputation
Long service life with proper maintenance
These advantages have made CAT hydraulic plunger pumps a preferred choice for original equipment installations.
Despite its strengths, the CAT hydraulic plunger pump also has clear limitations:
High purchase and replacement costs
Expensive spare parts and maintenance
Long lead times for replacement pumps
Increased downtime costs during repairs
Because of these disadvantages, many customers actively seek a cost-effective replacement for CAT hydraulic plunger pump.
The HENGYUHANG plunger pump 100-3259 / 0R-9645 is developed to solve 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 100-3259 and 0R-9645.
Compared with the CAT hydraulic plunger pump, the HENGYUHANG plunger pump offers the same 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 equipment downtime and improve operational efficiency.
Each HENGYUHANG plunger pump undergoes comprehensive pressure testing and performance inspection before shipment.
For customers looking to reduce operating costs without compromising performance, the HENGYUHANG plunger pump 100-3259 / 0R-9645 is the ideal alternative. It matches the performance of the CAT hydraulic plunger pump while offering better pricing, faster delivery, and reliable long-term operation.
The HENGYUHANG plunger pump 100-3259 / 0R-9645 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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