Cat

CAT 100-3259 0R-9645 Hydraulic Piston Pumps for Excavating Loaders 416B, 426B, 428B, 436B, 438B

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

Description

1.Technical Parameters of HENGYUHANG Plunger Pump

ParameterSpecification
Product TypeAxial Hydraulic Plunger Pump
Replacement ForCAT Hydraulic Plunger Pump
CAT Part Numbers100-3259 / 0R-9645
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 100-3259 / 0R-9645 can fully replace the original CAT hydraulic plunger pump without any modification.


2.Application Industries

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.


3.Advantages of CAT Hydraulic Plunger Pump

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.


4.Limitations of CAT Hydraulic Plunger Pump

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.


5.Why Choose HENGYUHANG Plunger Pump?

The HENGYUHANG plunger pump 100-3259 / 0R-9645 is developed to solve 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 100-3259 and 0R-9645.

2. Excellent Cost Performance

Compared with the CAT hydraulic plunger pump, the HENGYUHANG plunger pump offers the same 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 equipment 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 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.


7.Conclusion

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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