707-99-38720 Boom Cylinder Seal Kit for Komatsu PC160LC-7 PC180LC-7 Excavator

Premium 707-99-38720 Boom Cylinder Seal Kit for Komatsu Excavators

Eliminate hydraulic fluid leaks and restore the massive lifting capacity of your heavy-duty excavator with the WINSCHEN premium 707-99-38720 Boom Cylinder Seal Kit. Engineered to withstand the extreme operational pressures, heavy payloads, and abrasive environments of earthmoving and construction, 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 left and right boom hydraulic cylinders (including cylinder assemblies 707-01-XE490 and 707-01-XE500) used in Komatsu PC160LC-7 and PC180LC-7 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 boom drift and maintaining highly responsive, consistent lifting force for demanding trenching and loading tasks.
• This comprehensive seal kit includes all essential precision components—such as dust seals, rod packings, buffer rings, piston rings, wear rings, backup 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 maximizing on-site productivity.

Compatible Equipment Models

Based on official catalog and parts cross-reference data, the 707-99-38720 seal kit services the boom cylinders of the following Komatsu equipment:

• Crawler Excavators: PC160LC-7, PC160LC-7K, PC160LC-7K-KA, PC180LC-7K, PC180NLC-7K
• Application: Boom 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.