330BL Hydraulic Arm Cylinder for Excavator Spare Parts 116-3638 1163638 Aftermarket High Quality

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330BL Hydraulic Arm Cylinder | PN:116-3638 / 1163638 | Premium Aftermarket Replacement

1. Basic Product Info

This heavy-duty aftermarket hydraulic stick cylinder is precision manufactured as a direct interchangeable replacement for erpillar 330BL excavators. As the core hydraulic drive component of front working attachment, it controls arm extension and retraction to complete heavy digging, bulk material lifting, loading and large-area site leveling tasks. Widely used in open-pit mines, stone quarries, highway construction and large infrastructure earthmoving projects.

All cylinders are produced strictly complying with erpillar OEM technical standards, with fully consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation can be finished on site without cutting, welding or any secondary modifi ion work.

2. Core Technical Parameters

3. Product Advantages

1. Dual PN Fully Interchangeable OEM Fitment

   116-3638 and 1163638 are two expression formats of the same arm cylinder. All assembly dimensions perfectly match original parts, connecting seamlessly with arm linkages and hydraulic pipelines to sustain stable continuous heavy-load operation under mine and quarry harsh conditions.

2. Heavy-Duty Reinforced Mine-Grade Structure

   Thickened cylinder barrel and joint lugs adopt optimized reinforcement design to resist long-term cyclic heavy loads and frequent collision impacts, effectively extending the overall service life.

3. Multi-Round Strict Pre-Delivery Inspection

   Each finished cylinder undergoes repeated full-stroke cycle testing and high-pressure airtight leak detection, completely eliminating hidden hazards of internal and external oil leakage.

4. Excellent Cost Performance

   It achieves the same operational stability and service lifespan as genuine OEM spare parts, greatly lowering repeated procurement costs for repair shops and spare parts wholesalers.

5. Flexible Global Logistics Support

   In-stock goods can be dispatched within 3 working days. Air freight meets urgent breakdown delivery needs; sea freight provides the most cost-effective solution for bulk wholesale orders.

4. Supplier Brief

Our factory owns over ten years of professional experience in R&D and manufacturing hydraulic cylinders for classic large excavator series including 330BL. We supply complete boom, arm and bucket cylinder assemblies with mature production craftsmanship and full-process strict quality control systems. Our aftermarket hydraulic cylinders are exported to aftermarket markets across Africa, Southeast Asia and the Middle East all year round, winning long-term trust and consistent favorable feedback from global spare parts dealers.

5. FAQ