Komatsu PC228US-2 PC228USLC-2 Hydraulic Boom Cylinder 22U-63-02103 132mm Bore 1410mm Stroke Aftermarket

This heavy-duty aftermarket hydraulic boom cylinder is precision manufactured as a direct OEM replacement for Komatsu PC228US-2 standard short-tail excavator and PC228USLC-2 long-track zero-swing excavator. As the core hydraulic power component of front working equipment, it controls boom lifting and lowering to complete excavation, bulk material lifting, ground leveling and loading works. Widely applied in urban narrow-space construction, pipeline laying, municipal renovation and medium-sized quarry earthmoving projects.

All cylinders are strictly produced in accordance with Komatsu original technical drawings and OEM standards, with fully consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation without cutting, welding or any on-site secondary modification.

1. Universal Fit for Two Zero-Tail Models
   Compatible with standard-track PC228US-2 and long-track PC228USLC-2 short-swing excavators. All assembly sizes, lug spacing and oil port positions fully match original PN 22U-63-02103 cylinder, seamlessly connecting boom linkages and hydraulic pipelines for stable continuous medium-heavy load operation in narrow urban construction sites.
2. Optimized Reinforced Structure for Zero-Tail Excavators
   Thickened cylinder barrel and joint lugs are customized for limited working space, resisting long-term cyclic loads and accidental collisions with walls or stones to extend service life effectively.
3. Multi-Round Strict Pre-Delivery Inspection
   Each finished cylinder undergoes full-stroke reciprocating cycle test and high-pressure airtight leak detection, completely eliminating hidden internal and external oil leakage risks.
4. Outstanding Cost Performance
   Delivers identical stability and service lifespan as genuine Komatsu OEM spare parts, greatly cutting repeated procurement costs for repair shops, urban construction equipment rental fleets and global spare parts wholesalers.
5. Flexible Global Logistics Support
   In-stock items can be dispatched within 3 working days. Air freight supports urgent breakdown rush orders; sea freight provides cost-saving bulk wholesale shipping for Africa, Southeast Asia and Middle East markets.

Our factory has over 10 years of mature experience in R&D and mass production of hydraulic cylinders for Komatsu US series zero-tail excavators including PC228US-2 / PC228USLC-2. We supply complete boom, arm and bucket cylinder assemblies with mature forging, honing and heat treatment craft, plus full-process strict quality control. Our aftermarket hydraulic cylinders are exported worldwide all year round, winning long-term trust and consistent positive feedback from global machinery spare parts dealers.