HENGYUHANG Plunger Pump 203-2790 Perfect Replacement for CAT Hydraulic Piston Pump
In high-pressure hydraulic systems, the hydraulic piston pump is one of the most critical components. CAT hydraulic piston pumps are widely used in construction, mining, and industrial equipment. However, increasing costs and long delivery times have driven many users to seek a reliable CAT hydraulic piston pump replacement.
HENGYUHANG plunger pump 203-2790 is specifically engineered to be a perfect replacement for CAT hydraulic piston pumps, offering equivalent performance, full compatibility, and improved cost efficiency.
What Is a Hydraulic Plunger Pump?
A hydraulic plunger pump, also known as a hydraulic piston pump, generates hydraulic energy through the reciprocating motion of plungers inside the cylinder block. This design allows the pump to operate under high pressure, high efficiency, and continuous load conditions.
Compared with gear pumps or vane pumps, hydraulic piston pumps are preferred in CAT hydraulic systems due to their durability and pressure stability.
The main functions of a hydraulic piston pump include:
Supplying stable high-pressure hydraulic power
Delivering accurate and continuous flow
Supporting heavy-duty and long-time operation
Improving overall system efficiency and responsiveness
Below is the technical specification table of HENGYUHANG plunger pump 203-2790, designed to match CAT hydraulic piston pump standards.
| Parameter | Specification |
|---|---|
| Product Model | HENGYUHANG Plunger Pump 203-2790 |
| Pump Type | Axial Hydraulic Plunger Pump |
| Replacement For | CAT Hydraulic Piston Pump |
| Rated Pressure | Up to 35 MPa |
| Maximum Pressure | Up to 40 MPa |
| Flow Rate | High-efficiency, stable flow output |
| Rotation Speed | Fully compatible with CAT hydraulic systems |
| Operating Speed Range | 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 |
| Application System | CAT construction and industrial equipment |
| Manufacturing Process | Precision machining, OEM-level |
| Quality Inspection | 100% pressure & performance tested |
Hydraulic piston pumps are widely used across multiple industries, including:
Construction machinery (excavators, loaders, dozers)
Mining and quarry equipment
Agricultural machinery
Industrial hydraulic systems
Marine and offshore equipment
Energy and power machinery
In all these fields, both CAT hydraulic piston pumps and HENGYUHANG plunger pump 203-2790 deliver reliable hydraulic performance.
CAT hydraulic piston pumps are globally recognized and offer several advantages:
Strong international brand reputation
Proven reliability in harsh working environments
Stable pressure output
Long service life with proper maintenance
These strengths make CAT hydraulic piston pumps widely used in OEM equipment.
Despite their performance, CAT hydraulic piston pumps also have limitations:
High purchase and replacement cost
Expensive spare parts
Long lead times in many markets
Less flexibility for aftermarket sourcing
As a result, demand for a high-quality CAT hydraulic piston pump replacement continues to grow.
HENGYUHANG plunger pump 203-2790 is designed to directly replace CAT hydraulic piston pumps without compromising system performance.
Identical mounting dimensions
OEM-matching pressure and flow
Direct installation in CAT hydraulic systems
High-strength materials
Precision-machined plungers
Reliable operation under high pressure
Compared with original CAT hydraulic piston pumps, HENGYUHANG plunger pumps offer:
Lower procurement cost
Reduced maintenance expenses
Excellent cost-performance ratio
Short production lead time
Stable manufacturing capacity
Flexible global logistics support
Choosing HENGYUHANG plunger pump 203-2790 means choosing a trusted CAT hydraulic piston pump replacement with clear benefits:
OEM-level performance
Competitive pricing
Stable quality control
Wide industry application
Professional technical support
HENGYUHANG helps customers reduce operating costs while maintaining hydraulic system reliability.
If you are looking for a reliable and cost-effective CAT hydraulic piston pump replacement, HENGYUHANG plunger pump 203-2790 is the ideal solution. With full compatibility, stable performance, and competitive pricing, HENGYUHANG plunger pumps are trusted by customers worldwide.

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