721-98-00220 Bucket Cylinder Seal Kit for Komatsu PC650LC-11 PC700LC-11 Excavator

Premium 721-98-00220 Bucket / Arm Cylinder Seal Kit for Komatsu Excavators

Eliminate hydraulic fluid leaks and restore the massive breakout force of your heavy-duty excavator with the WINSCHEN premium 721-98-00220 Cylinder Seal Kit. Engineered to withstand the extreme operational pressures, heavy payloads, and abrasive environments of large-scale quarrying and mining, this high-quality aftermarket repair kit ensures your Komatsu 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 and arm hydraulic cylinders used in heavy-duty Komatsu PC650LC-11, PC700LC-11, and PC490LC-11 series excavators.
• 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 cylinder drift and maintaining highly responsive, consistent mechanical force during tough digging and loading operations.
• This comprehensive seal kit includes all essential precision components—such as O-rings, dust seals, backup rings, wear rings, piston rings, buffer rings, and rod packings—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 maximizing productivity.

Compatible Equipment Models

Based on official catalog and parts cross-reference data, the 721-98-00220 seal kit services the hydraulic cylinders of the following Komatsu equipment:

• Heavy Crawler Excavators: PC490LC-11, PC650LC-11, PC700LC-11, PC700LC-11E0
• Application: Bucket Cylinder / Arm 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 heavy-duty projects on schedule.