OEM CAT 0R-9645 Piston Pump for Caterpillar 416B 426B 428B Backhoe Loader

Application Range

The CAT 0R-9645 hydraulic pump is designed for Caterpillar backhoe loaders and construction equipment requiring reliable hydraulic power transmission. It converts mechanical energy from the engine into hydraulic flow, supplying oil pressure for operating cylinders, hydraulic motors, steering systems, and auxiliary attachments.

Main Applications:

1. Backhoe Loaders

The pump is widely used in CAT backhoe loader models, including:

• CAT 416B
• CAT 426B
• CAT 428B
• CAT 436B
• CAT 438B

It supports major hydraulic functions such as:

• Boom lifting and lowering
• Bucket loading and dumping
• Hydraulic steering
• Stabilizer operation
• Hydraulic attachment control

2. Construction Machinery

The 0R-9645 pump is suitable for demanding construction environments where continuous hydraulic power is required, including:

• Earthmoving operations
• Excavation projects
• Material handling
• Road construction
• Municipal engineering works

Its variable displacement design allows efficient power control, reducing unnecessary energy loss during different working conditions.

3. Heavy-Duty Hydraulic Systems

Typical hydraulic applications include:

• Hydraulic cylinders
• Hydraulic control valves
• Hydraulic motors
• Load-sensing hydraulic circuits
• Auxiliary hydraulic attachments

The pump provides stable flow output and reliable pressure control for machines operating under heavy loads.