CAT 336-349-374-395 Hydraulic Fan Pump Stable Cooling High Efficiency Durable for Large Excavators
This CAT Hydraulic Fan Pump is a dedicated cooling drive component for CAT 336, 349, 374, and 395 series large excavators. It provides stable hydraulic flow to the cooling fan system, ensures reliable engine temperature control, prevents overheating under heavy load, and supports long-hour continuous operation in mining, quarry, and large construction conditions.
Specifications
| Item |
Details |
| Product Name |
Hydraulic Fan Pump for CAT 336 349 374 395 |
| Suitable Models |
CAT 336D2/336GC, 349D2/349GC, 374F, 395 |
| OEM Part Numbers |
564-9801, 524-0924, 259-0815, 448-9705 |
| Pump Type |
Gear Pump / Piston Pump |
| Displacement |
23–44 cc |
| Operating Pressure |
21–28 MPa |
| Shaft Type |
15-tooth spline |
| Lubrication |
Hydraulic oil self-lubricated |
| Weight |
Approx. 8.5 kg |
Key Advantages
- Direct OEM matching for CAT 336/349/374/395 excavators
- Stable pressure and flow ensure efficient fan speed control
- High-precision gears for low noise and long wear life
- Multi-layer sealing structure prevents oil leakage
- Strong resistance to high temperature and heavy load
- Easy installation and direct replacement
- Effectively reduces engine overheating risk
- Extended service life and lower maintenance cost
Typical Applications
- CAT 336D2 / 336GC hydraulic excavators
- CAT 349D2 / 349GC hydraulic excavators
- CAT 374F / 395 large mining excavators
- Mining excavation, ore loading, quarry projects
- Large earthmoving and foundation construction
- Long-hour heavy-duty working conditions
FAQs
- Which models does this fan pump fit?
It fits CAT 336, 349, 374, and 395 series excavators.
- What are the main OEM part numbers?
564-9801, 524-0924, 259-0815, 448-9705.
- What is the shaft specification?
It uses a 15-tooth spline shaft.
- Is this pump for cooling system only?
Yes, it supplies power to the hydraulic cooling fan.
- Does it prevent engine overheating?
Yes, it ensures stable fan speed and efficient heat dissipation.
- Is it easy to replace?
Yes, direct OEM style installation without modification.