CAT 303CR Hydraulic Piston Pump with Precision Axial Piston Structure for Direct Replacement and High Volumetric Efficiency

For 566-7021 5667021 Hydraulic Piston Pump CAT 303CR Excavator engine parts

Specification

Description

This hydraulic piston pump is specifically designed for model 566-7021 and compatible with multiple compact excavator models. As a core power component of the equipment’s hydraulic system, it adopts a precision axial piston structure to provide stable and controllable hydraulic power for boom, arm, travel, swing and other movements, ensuring efficient operation of the whole machine. As an original-equivalent quality replacement part, its installation dimensions are fully compatible with the original equipment, enabling direct replacement without additional modification, making it an ideal choice for excavator repair and maintenance.

Advantage

Precise Fit: Custom-designed for corresponding excavator models, with 1:1 matching interfaces, flanges and installation dimensions with the original equipment, ensuring easy installation and zero modification costs.
Reliable Stability: Manufactured with high-strength alloy materials, key components are precision-machined and heat-treated, featuring strong impact and wear resistance, adapting to complex construction site conditions for stable and leak-free long-term operation.
High Efficiency & Energy Saving: Optimized piston and valve plate design ensures high volumetric efficiency and stable flow output, reducing equipment energy consumption and improving working efficiency.
Strict Quality Control: Each product undergoes multiple pressure, leakage and performance tests before delivery, ensuring compliance with original performance standards and reliable service life.

Performance

Structure Type: Axial piston variable pump, which can automatically adjust flow according to load to adapt to different working requirements.
Output Characteristics: Stable pressure and sensitive flow response provide sufficient power for the excavator’s hydraulic actuators, ensuring smooth and precise working movements.
Durability: High-strength housing and precision sealing system can withstand high pressure impact, effectively preventing fluid leakage and extending the service life of the pump.
Compatibility: Compatible with multiple compact excavator models with strong versatility, serving as a high-quality replacement solution for equipment hydraulic system maintenance.

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