John Deere 490D Hydraulic Boom Cylinder for Excavator Spare Parts 4227360 Aftermarket High Quality

This high-quality aftermarket hydraulic boom cylinder is tailor-made as a direct OEM replacement part for John Deere 490D excavators. As the core power hydraulic component of the front working device, it precisely controls the lifting and lowering movement of the boom to complete excavation, material hoisting, site leveling and bulk loading operations. Widely applied in municipal construction, road renovation, quarry work and medium-scale earthmoving engineering projects. All products are manufactured strictly following John Deere original design drawings and technical standards, with fully consistent installation dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation can be finished on site without cutting, welding or any secondary modification work.

1. Full Interchangeable OEM Fitment: Compatible with multiple alternative OEM part numbers, every assembly dimension matches the original cylinder perfectly, seamlessly connecting boom linkages and hydraulic pipelines for stable long-hour continuous operation.
2. Optimized Medium-Duty Reinforced Structure: Cylinder barrel and connecting lugs adopt thickened reinforcement design, resistant to frequent dynamic loads and accidental bumps on complex construction job sites, greatly extending service life.
3. Multi-Round Strict Pre-Delivery Inspection: Each finished cylinder undergoes full-stroke reciprocating cycle tests and high-pressure airtight leak detection, thoroughly eliminating internal and external oil leakage hidden troubles.
4. Superior Cost Performance: Delivers identical stability and durability as genuine John Deere spare parts, effectively lowering long-term 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 supports urgent orders, while sea freight is the most economical solution for bulk batch wholesale shipments.

Our factory has more than ten years of professional experience in developing and manufacturing hydraulic cylinders for John Deere D series excavators. We supply a complete set of boom, arm and bucket cylinders covering 490D and other classic John Deere equipment models. Supported by mature production craftsmanship and rigorous full-process quality control systems, our products are exported to aftermarket markets in Africa, Southeast Asia and the Middle East year-round, gaining consistent trust and positive feedback from global partners.