Cometic C4926-054 MLX Cylinder Head Gasket Bore Porsche - 102mm 997

The Cometic C4926-054 is a high-performance MLX (Multi-Layer Steel Stopper) cylinder head gasket engineered specifically for Porsche 997 3.6L engines. This precision-manufactured gasket features a 102mm bore diameter and .054 inch compressed thickness, making it ideal for both OEM replacements and high-performance applications requiring enhanced sealing capability.

Advanced MLX Technology:

The MLX design incorporates an integrated stopper fold-over layer that provides a torque-limiting surface, preventing yielding of the combustion seals under extreme cylinder pressures. This advanced construction delivers superior sealing performance compared to standard multi-layer steel gaskets, making it the preferred choice for modified and high-output engines.

Key Features:

• MLX (Multi-Layer Steel Stopper) construction with 5 layers of stainless steel
• 102mm bore size for precision fitment
• .054 inch compressed thickness
• Embossed layers with Viton rubber coating on outer surfaces
• High-temperature polymer and embossments provide micro-sealing against head and block surfaces
• No sealants required for installation
• Designed for both aluminum-to-aluminum and aluminum-to-cast iron applications
• Non-oriented design fits both cylinder banks

Performance Benefits:

Cometic MLX gaskets are engineered to withstand the extreme temperatures and pressures found in high-performance and racing applications. The multi-layer stainless steel construction offers exceptional rebound characteristics and corrosion resistance, while the Viton coating ensures reliable sealing across various surface finishes and load conditions. These gaskets require no re-torquing and deliver consistent performance in demanding environments.

Application Note:

This gasket is sold individually. Most applications require 2 gaskets per vehicle (one per cylinder bank). Please verify bore size and thickness requirements for your specific engine build before ordering. This is a made-to-order product with typical production time of 2-3 weeks.