Air Compressor Pump Head 5.5HP 175 PSI 811CFM Twin Cylinder Air Compressor Piston Pump Head 800RPM 2-Level Cast Iron Air Compressor Pump Replacement. 2? Excellent Cooling Performance: The aluminum material and evenly distributed heat dissipation fins make the machine dissipate heat faster, ensuring stable operation and extending the service life of the product. The special valve steel that has excellent strength and toughness at high temperatures. 3? Superior Features: The air filter can effectively filter moisture and other impurities in the air, and protect the air compressor pump head, and the belt drive suitable plays a balancing and correction role, avoiding bearing displacement and making the machine run more smoothly. 4? Durable and Efficient: The compact piston pump head is mainly made of durable cast iron, aluminum and carbon steel, which offers excellent wear resistance and is not easily damaged. Coupled with its high efficiency and low energy consumption, it delivers powerful pneumatic performance while helping you save on operational costs. 5? Wide Applications: 5.5HP air compressor pump head is widely used in chemical, light industry, textile, mining, construction, home decoration, woodworking shops, auto repair, etc. It delivers reliable compressed air to meet the demands of various equipment and tools, greatly enhancing your work efficiency.