ZX65 4671378 4671379 4671380 ZX65USB-3F Excavator Hydraulic Bucket Arm Boom Cylinder

ZX65 4671378 4671379 4671380 ZX65USB-3F Excavator Hydraulic Bucker Arm Boom Cylinder

Why Choose Glparts Hydraulic Cylinders?

1. Leak-Free Performance
We use high-quality sealing systems from Japan NOK and US SKF, ensuring excellent resistance to wear and temperature changes. This minimizes the risk of internal or external leakage during extended operation.

2. Reinforced Rod Strength
Our piston rods are made from hardened, high-tensile steel and treated with hard chrome plating. This gives superior resistance to bending, scratching, and corrosion — even under extreme working conditions.

3. Heavy-Duty Cylinder Tubes
The tubes are crafted from 25Mn precision steel with high wear resistance, reducing the chances of scoring and cylinder barrel fatigue over time.

4. Strict Quality Control
Every cylinder undergoes 100% pressure and leakage testing before shipment. Our ISO-certified manufacturing process guarantees consistent quality from raw material to final assembly.

More Models We Can Provide

Guangzhou Guoli Engineering Machinery Co., Ltd., located in GuangZhou city, benefits from a large construction machinery parts market and convenient transportation access. Our company specializes in producing a range of excavator hydraulic cylinders, including excavator arm cylinders, boom cylinders, bucket cylinders, cylinder tubes, and cylinder rods. With 10+ years expertise, we've established a complete production line from R&D to manufacturing, offering OEM customization and precise part number systems with technical specifications/photos/pricing. We pride ourselves on using premium materials such as high-strength steel and advanced processing technologies to ensure durability and performance.

In addition to hydraulic cylinders, we also provide a comprehensive range of other hydraulic components. This includes hydraulic pumps, swing motor, control valve,travel motors,engine parts,and undercarriage components, all designed for use in various excavator models. Our extensive product portfolio reflects our commitment to delivering complete solutions for construction machinery, ensuring that all critical components are available to meet the needs of our customers.

We serve a global customer base, including clients from Thailand, the Philippines, Indonesia, Malaysia, the United States, Turkey, Russia, Mexico, and many other countries. Our products have been recognized and recommended by local dealers and are highly regarded for their quality and reliability. With our competitive prices, timely delivery, and outstanding customer service, we are committed to providing the best solutions for each client. We warmly welcome inquiries from businesses worldwide and look forward to establishing long-lasting partnerships.