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CAT 9T-6857 0R-4218 Hydraulic Piston Pumps for Excavating loader 416 428

HENGYUHANG Plunger Pump 9T-6857 / 0R-4218 – A Perfect Replacement for CAT Hydraulic Plunger Pump


The CAT hydraulic plunger pump is a core component in high-pressure hydraulic systems used across construction machinery, mining equipment, and heavy-duty industrial applications. Known for stable flow and reliable pressure output, the CAT hydraulic plunger pump supports continuous operation in harsh working environments. However, high purchase costs and long lead times often increase maintenance expenses.


The HENGYUHANG plunger pump 9T-6857 / 0R-4218 is engineered as a perfect replacement for CAT hydraulic plunger pump, providing OEM-level compatibility, stable hydraulic performance, and outstanding cost efficiency. This HENGYUHANG plunger pump can directly replace the CAT hydraulic plunger pump 9T-6857 and 0R-4218 without any system modification.

    

Functions of HENGYUHANG Plunger Pump 9T-6857 / 0R-4218


As a direct replacement for the CAT hydraulic plunger pump, the HENGYUHANG plunger pump 9T-6857 / 0R-4218 performs key hydraulic functions:

  • Supplies continuous high-pressure hydraulic oil

  • Maintains stable and efficient flow output

  • Supports accurate control of hydraulic cylinders and motors

  • Operates reliably under heavy load conditions

  • Reduces hydraulic energy loss and system vibration

Description

1.Technical Parameters of HENGYUHANG Plunger Pump 9T-6857 / 0R-4218

ParameterSpecification
Product TypeAxial Hydraulic Plunger Pump
Replacement ForCAT Hydraulic Plunger Pump
CAT Part Numbers9T-6857 / 0R-4218
Rated PressureUp to 35 MPa
Maximum PressureUp to 40 MPa
Flow OutputHigh and stable
Operating SpeedOEM standard RPM
Working MediumHydraulic Oil
Operating Temperature-20°C to +90°C
Installation MethodDirect replacement
Mounting InterfaceFully compatible with CAT
Quality Testing100% pressure tested

These parameters ensure the HENGYUHANG plunger pump 9T-6857 / 0R-4218 can fully replace the CAT hydraulic plunger pump in real-world applications.


2.Application Industries

The HENGYUHANG plunger pump and CAT hydraulic plunger pump are widely used in:

  • Construction and earthmoving machinery

  • Mining and quarry equipment

  • Industrial hydraulic systems

  • Material handling and lifting equipment

  • Agricultural and forestry machinery

  • Heavy-duty mobile equipment

The HENGYUHANG plunger pump is designed for long-term operation in high-pressure and harsh environments.


3.Advantages of CAT Hydraulic Plunger Pump

The CAT hydraulic plunger pump offers several recognized advantages:

  • Stable performance under high pressure

  • Proven durability in demanding environments

  • Precise hydraulic flow and pressure control

  • Strong global brand reputation

These advantages have made CAT hydraulic plunger pumps widely used in original equipment installations.


4.Limitations of CAT Hydraulic Plunger Pump

Despite its strengths, the CAT hydraulic plunger pump has certain limitations:

  • High purchase and replacement costs

  • Expensive spare parts and service fees

  • Long delivery times in many regions

  • Increased downtime during repairs

These factors encourage many users to seek a reliable replacement for CAT hydraulic plunger pump.


5.Advantages of HENGYUHANG Plunger Pump

The HENGYUHANG plunger pump 9T-6857 / 0R-4218 is designed to match or exceed the performance of the CAT hydraulic plunger pump while offering additional benefits.

1. OEM-Level Compatibility

Manufactured according to CAT standards, the HENGYUHANG plunger pump ensures direct replacement for the CAT hydraulic plunger pump 9T-6857 and 0R-4218.

2. Cost-Effective Performance

Compared with the CAT hydraulic plunger pump, the HENGYUHANG plunger pump provides excellent performance at a more competitive price.

3. Stable and Reliable Operation

Precision machining and strict quality control guarantee consistent pressure and flow output.

4. Shorter Lead Time

HENGYUHANG plunger pumps are available with faster delivery, helping reduce equipment downtime.

5. Comprehensive Quality Control

Each HENGYUHANG plunger pump is fully tested before shipment to ensure reliable operation.


6.Why Choose HENGYUHANG Plunger Pump?

Choosing the HENGYUHANG plunger pump 9T-6857 / 0R-4218 means choosing a dependable, durable, and economical replacement for CAT hydraulic plunger pump. It helps reduce operating costs while maintaining stable hydraulic system performance.


7.Conclusion

The HENGYUHANG plunger pump 9T-6857 / 0R-4218 is a high-quality alternative to the CAT hydraulic plunger pump. With OEM-level compatibility, reliable hydraulic performance, and clear cost advantages, it is widely used in construction, mining, and industrial hydraulic systems.

If you are looking for a trusted replacement for CAT hydraulic plunger pump, the HENGYUHANG plunger pump is your ideal solution.

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