Cometic Top End Gasket Kit for 81 mm Husqvarna, KTM and GasGas 4-Stroke Engines (C3809)

The Cometic C3809 Top End Gasket Kit is designed for select 81 mm Husqvarna, KTM, and GasGas 4-stroke engines. This comprehensive kit includes the correct base gasket, head gasket, cylinder O-rings, and other top-end-specific O-rings or seals required for top-end removal and reinstallation. It provides the components needed to support a reliable rebuild while helping maintain proper sealing throughout the engine’s upper assembly.
The included MLS head gasket uses a multi-layered steel construction with embossed outer layers and a Viton rubber coating. This design promotes an even torque load across the gasket sealing surface, helping reduce bore distortion and improve piston ring seal for strong engine performance. The gasket construction is engineered to handle the demands of today’s high-output naturally aspirated and boosted 4-stroke machines, including engines operating with high horsepower and cylinder pressure.
Cometic’s EST, or Extreme Sealing Technology, combines embossed stainless steel head, base, and rocker gaskets with a proprietary rubber coating. The head gasket material helps draw heat away from the combustion ring and distribute it evenly across the gasket surface, reducing hot spots that can contribute to gasket failure. Manufactured in the USA, the Cometic C3809 offers a purpose-built sealing solution for performance-focused top-end service and engine maintenance.

Features:

• Application: Designed for select 81 mm Husqvarna, KTM, and GasGas 4-stroke engines

• Kit Contents: Includes base and head gaskets, cylinder O-rings, and additional top-end-specific O-rings or seals

• MLS Construction: Multi-layered steel design promotes even torque distribution across the gasket sealing surface

• Viton Coating: Embossed outer layers feature a durable Viton rubber coating for enhanced sealing performance

• Performance Support: Helps reduce bore distortion and improve piston ring seal for increased engine performance

• Extreme Sealing Technology: Embossed stainless steel gaskets are covered with Cometic’s proprietary rubber material

• Heat Management: Head gasket material distributes heat evenly to help reduce hot spots and gasket failure

• Manufacturing: Made in the USA

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