ZX450LC ZX450 Hydraulic Bucket Cylinder for Hitachi Excavator Spare Parts 4391716 4391716EX 4391716 Aftermarket High Quality

This heavy-duty aftermarket hydraulic bucket cylinder is developed as a fully compatible replacement for Hitachi ZX450LC and ZX450 large excavators. As a core hydraulic component of the working attachment, it drives the bucket to complete digging, material collection and unloading operations. It is widely deployed in large-scale infrastructure construction, stone quarrying, bulk earthworks and open-pit mining projects. All products are manufactured in strict compliance with Hitachi OEM design standards, featuring identical installation dimensions, pin hole gaps and hydraulic port configurations. Operators can carry out direct bolt-on assembly on site without any cutting, welding or additional structural modifications.

1. Multi-Part Number Interchangeability: The two listed part numbers are mutually applicable. The overall structure and mounting size match the original assembly perfectly, ensuring smooth connection with bucket linkages and hydraulic pipelines for reliable operation.
2. Heavy-Load Optimized Structure: The cylinder barrel and connection lugs adopt thickened reinforcement design, which can withstand long-duration heavy loads and frequent impacts in harsh mining and construction environments.
3. Complete Pre-Shipment Quality Control: Every finished unit undergoes long-running full-stroke cycle tests and high-pressure airtight inspections to completely eliminate hidden risks of internal and external oil leakage.
4. High Practical Economic Value: It features the same stable performance and long service life as genuine parts, effectively helping equipment maintenance teams and spare parts dealers cut down daily procurement expenditure.
5. Diversified Logistics Support: All in-stock items can be delivered within 3 working days. Air delivery serves urgent orders, while sea delivery is a cost-effective solution for large-quantity wholesale orders.

Our production plant has rich experience in manufacturing hydraulic cylinders for Hitachi ZX series large excavators for more than ten years. We provide a full range of boom, arm and bucket cylinders covering ZX450 series and other mainstream Hitachi models. With advanced production technologies and strict quality supervision mechanisms, our products are continuously exported to aftermarket markets in Africa, Southeast Asia and the Middle East, winning wide recognition from global purchasers.

Q1: Can this bucket cylinder be used on Hitachi ZX400 or ZX470 excavators?

A: No. Different Hitachi excavator models are equipped with exclusive part numbers and structural dimensions, which cannot be used interchangeably. Please confirm your equipment model before placing orders.

Q2: Does the standard product include the dedicated seal repair kit?

A: The seal repair kit is not included in standard packages. You can purchase the matching repair kit separately, and we will offer a favorable quotation for combined orders.

Q3: What packaging is adopted for long-distance sea transportation?

A: We inject anti-rust oil into the cylinder interior and coat anti-rust grease on the piston rod. The whole product is wrapped with waterproof PE film and packed in durable export-grade plywood cases.

Q4: Will we get preferential prices when purchasing a full set of working device cylinders?

A: Yes. Purchasing a complete set of cylinders will enjoy tiered discounts. We also provide combined shipment service to help customers reduce logistics costs.

Q5: What technical support can be provided if oil leakage occurs during the warranty period?

A: Please provide clear photos of the leaking area and the excavator serial number. We will arrange free seal replacement and professional remote troubleshooting guidance in a timely manner.