Original combination gasket-416-09-11130

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Komatsu Bulldozers

Original combination gasket-416-09-11130

PRODUCT DESCRIPTION:

The 416-09-11130 is a dedicated combination seal for the transmission/converter end face of Komatsu D65/D85 bulldozers, featuring a metal frame and rubber sealing layer. Designed to prevent transmission oil leakage and external dust ingress, it provides static sealing under heavy-load vibration conditions, ensuring reliable lubrication and sealing of the transmission system while reducing maintenance frequency and energy consumption.

PRODUCT DETAILS

Core Features

Static sealing and leak prevention: The metal frame ensures rigidity, while the rubber layer fills the tiny gaps at the mating surfaces, preventing internal transmission fluid leakage and the intrusion of external dust.

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

Temperature adaptability: Compatible with transmission fluid temperatures of 80–100℃, it does not age or fail over long-term use.

Vibration damping: The rubber layer absorbs vibrations from the transmission system, preventing seal failure caused by loosening of the mating surfaces.


Product Superiority

Original factory precision fit: Dimensions perfectly match bolt hole positions and mating surface tolerances, allowing for direct replacement without adjustment and eliminating assembly deviations that could lead to leaks.

Reliable materials: The metal frame is made of cold-rolled steel plate, and the sealing layer is made of nitrile rubber (NBR), resistant to mineral oil, wear, and aging, suitable for gearbox operating conditions.

Stable sealing: The rubber layer has a high compression resilience, resisting plastic deformation over long-term use, with a static seal life of ≥3000 hours.

Easy installation: Equipped with positioning holes, it can be easily installed by simply inserting it, requiring no special tools and reducing replacement difficulty.

Cost-friendly: Moderate unit price, low inventory and maintenance costs, ensuring stable operation of the transmission system.


Installation and Maintenance Points

Before installation, clean the sealing surface and bolt holes to remove burrs, oil, and impurities to avoid scratching the sealing layer.

During installation, align the gasket with the positioning holes and place it evenly, avoiding twisting, to ensure full contact between the sealing layer and the mating surface.

Tighten the bolts symmetrically in stages to the specified torque, avoiding localized overpressure that could damage the gasket.

Check for leaks every 2000 hours and replace the gasket every 3000 hours to prevent aging and failure.


Fit scenarios and value

Suitable for: Static sealing surfaces of transmission systems such as gearboxes and torque converters; suitable for heavy-duty, high-vibration, and dusty operating environments.

Core benefits: Prevents transmission oil leakage, protects transmission components, extends gear and bearing life, and reduces downtime maintenance costs.


SPECIFICATION

Project

Details

Part Number

416-09-11130 (Original combination gasket, compatible with D65/D85 transmission system static seal)

Compatible Models

Komatsu D65 (EX/PX/WX) and D85 (EX/PX/WX) series bulldozers (including mainstream sub-models such as D65E 12 and D85E 12)

Compatible Parts

Static seals for gearbox end covers, torque converter housing mating surfaces, transmission box and engine connection surfaces, etc.

Core Category

Metal skeleton composite gasket (with rubber coating/rubber strip, specifically for static sealing)

Compatible Operating Conditions

Suitable for heavy-duty vibration, oil temperature fluctuation, and dusty mining/construction work environments


Parameter Items

Numerical values

Notes

Structure Type

Metal skeleton + NBR sealing layer composite structure

Suitable for static sealing surfaces

Applicable Pressure

≤1.0 MPa (static sealing low pressure condition)

Suitable for transmission housing seals

Operating Temperature

-30℃ to +120℃

Coveres the transmission oil temperature range

Sealing Layer Hardness

70–80 Shore A

Balances sealing and elasticity

Tensile Strength

≥12 MPa

Ensures durability during installation and use

Compression Set

≤25%(70℃×72 h)

Long-term sealing stability

Flatness of Fitting Material

≤0.1 mm/100 mm

Suitable for housing mating surface flatness requirements


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