Hitachi ZX85USB-6 4469025 FYD00002228 Hitachi Main Pump Fit for hitachi parts

List of spare parts

Excavators work where it's dirty, wet, dusty, and demanding. Your hydraulic pump lives right in the thick of it! Choosing one built for harsh conditions is non-negotiable for uptime and longevity. Look for features designed for resilience: Robust Castings & Machining: High-quality materials and precise manufacturing minimize internal wear and resist deformation under constant high pressure. Superior Filtration Compatibility: The pump must work seamlessly with top-notch filtration systems. Contaminants (dirt, water, metal particles) are the #1 cause of pump failure. A tough pump has tight internal tolerances but also relies on clean oil. Durable Bearing & Seal Design: Seals must keep contaminants out and fluid in, even under vibration and temperature swings. Bearings need to handle heavy radial and axial loads. Corrosion Resistance: Critical for components exposed to moisture, salt (marine environments, winter roads), or aggressive chemicals. Look for appropriate plating or coatings.