878000493 Boom Swing Cylinder Seal Kit for Komatsu Loaders
878000493 Boom Swing Cylinder Seal Kit Product Overview
As a leading manufacturer of high-quality hydraulic sealing solutions, our factory proudly presents the 878000493 Boom Swing Cylinder Seal Kit. This crucial aftermarket component is meticulously engineered for Komatsu Loaders, specifically designed to restore and maintain the optimal functionality of the boom swing cylinder on models such as WB91R-2, WB93R-2, WB97R-2, and WB97S-2. The boom swing cylinder is fundamental to the loader’s maneuverability and precise positioning during various operations. We understand that reliable hydraulic performance is paramount for heavy equipment, directly impacting operational efficiency and safety. Our 878000493 seal kit is precisely manufactured to prevent hydraulic fluid leaks, protect internal cylinder components from abrasive contaminants, and ensure consistent system pressure. This commitment to quality translates into maximized uptime and reduced maintenance costs for wholesale distributors, repair facilities, and large construction fleets. As a trusted factory, we guarantee a product that meets stringent industry standards, providing a durable and cost-effective solution for maintaining the hydraulic integrity of your Komatsu loaders.
Technical Specifications
| Specification | Detail |
| Part Number | 878000493 |
| Applicable Models | Komatsu WB91R-2, WB93R-2, WB97R-2, WB97S-2 Loaders |
| Cylinder Application | Boom Swing Cylinder |
| Condition | New, High-Quality Aftermarket |
| Material Composition | Advanced Nitrile Butadiene Rubber (NBR), Polyurethane (PU), and Polytetrafluoroethylene (PTFE) compounds |
878000493 Seal Kit Components
| Component | Primary Function |
| Rod Seals | Seals the piston rod, preventing external fluid leakage and ensuring smooth movement. |
| Piston Seals | Creates a dynamic seal between the piston and cylinder bore, maintaining pressure differential. |
| Wiper Seals (Dust Seals) | Cleans the rod surface, preventing dirt and contaminants from entering the cylinder. |
| Wear Rings (Guide Bands) | Guides the piston and rod, preventing metal-to-metal contact and ensuring concentric movement. |
| Buffer Seals | Absorbs pressure spikes and protects the primary rod seal from high-pressure extrusion. |
| O-rings & Backups | Provides static and dynamic sealing for various internal connections and prevents seal extrusion under pressure. |
Core Advantages
•Precision Engineered: Designed for exact fitment with Komatsu loader boom swing cylinders, ensuring seamless replacement and optimal performance.
•Superior Durability: Manufactured from industrial-grade materials for exceptional resistance to wear, high pressure, and temperature fluctuations.
•Enhanced Hydraulic Efficiency: Restores full hydraulic power for precise and efficient boom swing operations, boosting productivity.
•Long-Term Cost Savings: A reliable aftermarket solution that extends equipment lifespan and significantly reduces the frequency of repairs.
Frequently Asked Questions (FAQ)
Q: Do you have any other construction machinery model repair seal kits?
A: Yes. As the professional hydraulic seal kits manufacturer, we produce all the hydraulic cylinder repair seal kits, standard sizes and also support customization. Please tell us the part number seal kit you want.
Q: I can’t find the model I want. Are all your seal repair kits here?
A: No. We have more than tens of thousands seal kits. Here only a small part of them is shown. We have stock of all the seal kits for construction machinery. Please contact us!
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