4440-6219K Bucket Cylinder Seal Kit for Daewoo Doosan MEGA 300 Loader

Premium 4440-6219K Bucket Cylinder Seal Kit for Doosan / Daewoo Loaders

Eliminate hydraulic fluid leaks and restore the maximum breakout force of your wheel loader with the WINSCHEN premium 4440-6219K Bucket Cylinder Seal Kit. Engineered to withstand the extreme operational pressures, heavy payloads, and abrasive environments of quarrying and construction, this high-quality aftermarket repair kit ensures your Doosan/Daewoo equipment operates safely and efficiently with zero pressure loss.

Key Features and Selling Points

• Manufactured to strict OEM dimensions, ensuring a precise and seamless fit for the bucket hydraulic cylinders (including cylinder assembly 4440-6219) used in heavy-duty Daewoo and Doosan MEGA 300 and MEGA 300-III wheel loaders.
• Constructed from advanced elastomeric, polyurethane, and heavy-duty wear-resistant materials to provide exceptional resistance to high hydraulic pressure spikes, continuous rod friction, and extreme thermal variations.
• Effectively eliminates internal fluid bypass and external leakage, preventing bucket drift and maintaining highly responsive, consistent mechanical force during tough loading operations.
• This comprehensive seal kit includes all essential precision components—such as step seals, U-packings, dust wipers, back-up rings, and O-rings—required for a complete and reliable cylinder overhaul.
• A cost-effective, highly reliable aftermarket alternative that meets or exceeds original equipment standards, minimizing your machine’s routine maintenance downtime and optimizing productivity.

Compatible Equipment Models

Based on official catalog and parts cross-reference data, the 4440-6219K seal kit services the bucket cylinders of the following equipment:

• Wheel Loaders: MEGA 300, MEGA 300-III
• Application: Bucket Cylinder Hydraulic Service / Rebuild

Specifications

To guarantee 100% fitment, please verify your machine’s model, serial number, and original cylinder configuration with our dedicated support team prior to purchasing. We proudly offer fast and reliable global shipping to keep your projects on schedule.