Core Features

Static sealing and leak prevention: An elastic sealing ring is formed between the groove and the mating surface, preventing internal gear oil leakage and the intrusion of external mud/dust.

Gap filling: Utilizing rubber elasticity to fill minute gaps at the mating surfaces compensates for assembly errors and ensures reliable sealing.

Media isolation: Isolates gear oil from external air/impurities, preventing oil contamination, oxidation, and component corrosion.

Buffering and vibration reduction: The elastomer absorbs vibrations, reducing the risk of seal failure due to impact at the mating surfaces.

Product Superiority

Original factory precision fit: Dimensions and groove tolerances perfectly match, allowing for direct replacement without adjustment, avoiding leaks caused by improper clearance.

Reliable material: Made of nitrile rubber (NBR), resistant to mineral oils, wear, and aging, suitable for gear oils and engineering machinery operating conditions.

Stable seal: High compression resilience, not easily deformed by plasticity over long-term use, static seal life ≥3500 hours.

Cost-friendly: Low unit price, easy to procure, small unit quantity (commonly 2 units/final drive), low inventory and maintenance costs.

Easy installation: No special tools required, simply insert into the groove for installation, reducing replacement difficulty.

Installation and Maintenance Points

Before installation, clean the sealing groove and mating surface to remove burrs, oil, and impurities to avoid scratching the O-ring surface.

During installation, avoid twisting or stretching. Place the O-ring evenly into the groove, ensuring full contact with the mating surface.

Tighten the bolts symmetrically to the specified torque to avoid localized overpressure that could cause the O-ring to be squeezed out or damaged.

Check for leaks every 1500 hours and replace the O-ring every 3500 hours to prevent aging and failure.

Fit scenarios and value

Suitable scenarios: Suitable for static sealing surfaces of final drive components, and operating environments with heavy loads, vibration, and high dust levels.

Core value: Prevents gear oil leakage, protects final drive components, extends gear and bearing life, and reduces downtime maintenance costs.

Frequently Asked Questions

What is Komatsu O-Ring 14X-27-11170 used for?

The Komatsu O-Ring 14X-27-11170 is used as a static sealing element in the final drive assembly of Komatsu bulldozers. It prevents oil leakage between the sprocket hub, end cover, and final drive            housing to ensure stable lubrication and long-term durability.

Which Komatsu machines use this O-ring?

This O-ring is compatible with multiple Komatsu bulldozer models including the D65 EX/PX/WX and D85 EX/PX/WX series, as well as sub-models such as D65E-12 and D85E-12 requiring the 14X-27-11170 standard seal.

What material is the O-Ring 14X-27-11170 made of?

It is manufactured from Nitrile Butadiene Rubber (NBR), providing excellent oil resistance, wear resistance, and elasticity under vibration. This ensures reliable sealing performance in heavy-duty and temperature-fluctuating operating conditions.

How to install this Komatsu O-ring?

The O-ring is installed into the static seal groove positioned between the sprocket, hub, and final drive housing. No modification is required, as it fits according to Komatsu's precise factory specifications. Light lubrication is recommended during installation.

Can this O-ring fit other machinery brands?

Although manufactured to Komatsu standards, it may also fit machinery from other brands using the same groove dimensions. Verification of inner diameter, cross-section size, and installation position is recommended before replacement.

Does this O-ring come with quality assurance?

Quality assurance varies by supplier. We provide inspection reports, batch certifications, and material testing data upon request. Contact our sales team for warranty and compliance details.

How do I confirm if this O-ring fits my bulldozer?

You can confirm compatibility by providing your machine model, serial number, or a clear photo of the original O-ring and final drive assembly. Our technical team will help verify the correct part before ordering.