HENGYUHANG Plunger Pump 9T-8346 & 0R-8503 – Reliable Replacement for CAT Hydraulic Plunger Pump
Introduction: Cost-Effective Replacement for CAT Hydraulic Plunger Pump
The HENGYUHANG plunger pump is engineered as a direct and reliable replacement for CAT hydraulic plunger pump 9T-8346 and 0R-8503. Designed to meet or exceed OEM specifications, the HENGYUHANG plunger pump delivers stable pressure, high efficiency, and long service life in demanding hydraulic systems.
Product Overview: HENGYUHANG Plunger Pump for CAT 9T-8346 & 0R-8503
The HENGYUHANG plunger pump is manufactured using precision machining and high-strength materials, ensuring full compatibility with CAT hydraulic systems. It can be installed without modification, making it a true plug-and-play replacement for CAT hydraulic plunger pump models 9T-8346 and 0R-8503.
Key highlights of the HENGYUHANG plunger pump include:
OEM-matched dimensions and mounting
Stable output under high pressure
Excellent sealing performance
Reduced wear and extended service life
| Parameter | Specification |
|---|---|
| Pump Type | Axial hydraulic plunger pump |
| Compatible CAT Part Numbers | 9T-8346, 0R-8503 |
| Rated Pressure | Up to 35 MPa |
| Maximum Pressure | Up to 40 MPa |
| Flow Rate | OEM-matched |
| Rotation Speed | Compatible with CAT systems |
| Mounting Type | Standard CAT flange |
| Application System | CAT hydraulic equipment |
The HENGYUHANG plunger pump is tested under real working conditions to ensure performance consistency comparable to the CAT hydraulic plunger pump.
A hydraulic plunger pump plays a critical role in converting mechanical energy into hydraulic energy. The HENGYUHANG plunger pump performs the same core functions as the CAT hydraulic plunger pump, including:
Delivering high-pressure hydraulic oil
Maintaining stable flow under variable loads
Supporting heavy-duty hydraulic actuators
Ensuring efficient power transmission
Because of its robust structure, the HENGYUHANG plunger pump is especially suitable for high-pressure and continuous-duty applications.
The HENGYUHANG plunger pump replacement for CAT hydraulic plunger pump 9T-8346 and 0R-8503 is widely used in:
Construction machinery
Excavators and loaders
Mining equipment
Industrial hydraulic systems
Heavy earth-moving machines
Agricultural machinery
In all these industries, the HENGYUHANG plunger pump ensures reliable hydraulic performance and reduced downtime.
Strong brand reputation
Proven durability in extreme environments
Stable hydraulic performance
Wide global service network
High purchase cost
Expensive spare parts
Long delivery lead times
Higher maintenance expenses
These limitations encourage many customers to seek a cost-effective alternative such as the HENGYUHANG plunger pump.
The HENGYUHANG plunger pump is designed to solve the pain points associated with the CAT hydraulic plunger pump while maintaining equivalent performance.
Perfect OEM Replacement
The HENGYUHANG plunger pump fully replaces CAT hydraulic plunger pump 9T-8346 and 0R-8503 without any modification.
Competitive Pricing
Compared with the CAT hydraulic plunger pump, the HENGYUHANG plunger pump offers significant cost savings.
Stable and Reliable Performance
High-precision components ensure stable pressure and long-term reliability.
Strict Quality Control
Each HENGYUHANG plunger pump undergoes pressure, leakage, and endurance testing before delivery.
Fast Delivery and Flexible Supply
Shorter lead time compared to CAT hydraulic plunger pump OEM supply.
If you are looking for a dependable and economical replacement for CAT hydraulic plunger pump 9T-8346 and 0R-8503, the HENGYUHANG plunger pump is the ideal solution. With OEM-level compatibility, strong performance, and lower operating costs, the HENGYUHANG plunger pump helps maximize equipment uptime and profitability.
Choosing the HENGYUHANG plunger pump means choosing reliability, efficiency, and value.

No. 173, Xiacuo, Sihuang Village, Xiamei Town, Nan 'an City, Fujian Province



