PC150-1 PC150 Hydraulic Bucket Cylinder for Komatsu Excavator Spare Parts 21K-63-76301 Aftermarket High Quality

1. Basic Product Info

This heavy-duty aftermarket hydraulic bucket cylinder is precision manufactured as a direct OEM replacement spare part for early-generation Komatsu PC150 and PC150-1 medium excavators. As the core hydraulic actuator of front working attachment, it drives bucket digging, soil grabbing, stone loading and material dumping operations. Widely applied in municipal renovation, road maintenance, pipeline construction, landscaping and small earthmoving jobs.

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.

2. Core Technical Parameters

3. Product Advantages

1. Universal Fit for PC150 & PC150-1 Old Models

   One cylinder fits both original PC150 base model and upgraded PC150-1 version. All assembly sizes, lug spacing and oil port positions fully match original PN 21K-63-76301 cylinder, seamlessly connecting bucket linkages and hydraulic pipelines for stable continuous medium-load construction operation.

2. Medium-Load Reinforced Optimized Structure

   Thickened cylinder barrel and joint lugs are upgraded for frequent daily construction scenarios, resisting long-term cyclic loads and minor collision abrasion to extend overall 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. Excellent Cost Performance

   Delivers the same stability and service lifespan as genuine Komatsu OEM spare parts, greatly cutting repeated procurement costs for repair shops, equipment rental companies and global spare parts wholesalers specializing in old-model excavator parts.

5. Flexible Global Logistics Support

   In-stock items can be dispatched within 3 working days. Air freight handles urgent breakdown rush orders; sea freight offers cost-effective bulk wholesale shipping to Africa, Southeast Asia, Middle East and Latin American markets.

4. Supplier Brief

Our factory has over 10 years of mature experience in R&D and mass production of hydraulic cylinders for classic old-generation Komatsu PC series excavators including PC150 / PC150-1. 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.

5. FAQ