HENGYUHANG Plunger Pump 146-3685 – Perfect Replacement for CAT Hydraulic Plunger Pump
The CAT hydraulic plunger pump is a vital component in high-pressure hydraulic systems used in construction equipment, mining machinery, and industrial applications. CAT hydraulic plunger pumps are widely recognized for their durability and stable hydraulic performance. However, high purchase cost, long delivery cycles, and expensive maintenance often increase total ownership cost.
The HENGYUHANG plunger pump 146-3685 is engineered as a perfect replacement for CAT hydraulic plunger pump, delivering OEM-level compatibility, reliable hydraulic output, and excellent cost efficiency. This HENGYUHANG plunger pump can directly replace the CAT hydraulic plunger pump 146-3685 without any modification.
Functions of HENGYUHANG Plunger Pump 146-3685
As a direct replacement for the CAT hydraulic plunger pump, the HENGYUHANG plunger pump 146-3685 performs the following key functions:
Supplies stable high-pressure hydraulic oil
Maintains consistent flow under continuous load
Enables precise control of hydraulic cylinders and motors
Reduces energy loss and system vibration
Supports long-term reliable operation in harsh environments
| Parameter | Specification |
|---|---|
| Product Type | Axial Hydraulic Plunger Pump |
| Replacement For | CAT Hydraulic Plunger Pump |
| CAT Part Number | 146-3685 |
| 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 |
| Installation Method | Direct replacement, plug-and-play |
| Mounting Interface | Fully compatible with CAT systems |
| Quality Control | 100% pressure and performance tested |
These technical parameters ensure the HENGYUHANG plunger pump 146-3685 meets or exceeds the performance of the CAT hydraulic plunger pump.
Both the HENGYUHANG plunger pump and the CAT hydraulic plunger pump are widely used in:
Construction and earthmoving equipment
Mining and quarry machinery
Industrial hydraulic systems
Material handling equipment
Agricultural machinery
Heavy-duty mobile equipment
The HENGYUHANG plunger pump is designed for continuous operation under high-pressure and heavy-load conditions.
The CAT hydraulic plunger pump offers several recognized advantages:
Proven durability in heavy-duty applications
Stable high-pressure hydraulic output
Precise system control
Strong global brand reputation
These strengths make CAT hydraulic plunger pumps a preferred OEM choice.
Despite its advantages, the CAT hydraulic plunger pump has some limitations:
High initial and replacement costs
Expensive spare parts
Long delivery times
High maintenance and operating expenses
These disadvantages lead many customers to search for a reliable replacement for CAT hydraulic plunger pump.
The HENGYUHANG plunger pump 146-3685 is designed to match or exceed the CAT hydraulic plunger pump while providing additional benefits.
Manufactured according to CAT specifications, the HENGYUHANG plunger pump directly replaces the CAT hydraulic plunger pump 146-3685.
Compared with the CAT hydraulic plunger pump, the HENGYUHANG plunger pump significantly reduces total ownership cost.
Precision machining ensures consistent pressure, smooth flow, and extended service life.
Shorter production cycles help reduce equipment downtime.
Each HENGYUHANG plunger pump undergoes full pressure and performance testing before shipment.
Choosing the HENGYUHANG plunger pump 146-3685 means selecting a reliable, cost-effective, and high-performance replacement for CAT hydraulic plunger pump. It ensures hydraulic system efficiency while lowering maintenance and operating costs.
The HENGYUHANG plunger pump 146-3685 is a dependable and economical alternative to the CAT hydraulic plunger pump. With OEM-level compatibility, stable performance, and competitive pricing, it is widely trusted in construction, mining, and industrial hydraulic applications.
If you are looking for a proven replacement for CAT hydraulic plunger pump, the HENGYUHANG plunger pump is the ideal choice.

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