Cometic C14142-040 MLX Cylinder Head Gasket Bore Porsche - 105mm 997 991

The Cometic C14142-040 is a precision-engineered Multi-Layer Xtreme (MLX) cylinder head gasket designed specifically for high-performance Porsche applications. This gasket features a 105mm bore diameter with a .040" (1.0mm) compressed thickness, providing optimal sealing and combustion chamber volume control for cylinders 1-3 on the left-hand side.

Key Features:

• Multi-Layer Xtreme (MLX) construction with multiple layers of stainless steel for superior durability and rebound characteristics
• 105mm bore diameter engineered for precise fitment
• .040" compressed gasket thickness for accurate compression ratio tuning
• Left-hand side application covering cylinders 1-3
• Advanced coating technology provides excellent sealing under extreme temperatures and pressures
• Manufactured with aerospace-quality materials for racing and high-performance street applications

Compatible with Porsche Engine Codes: A101, A103, A170, MA1.24, MA1.71, MA1.75, MA1.76, MA1.77, MDA.BA, MDB.CA, MDB.CB, MDB.XA, MDG.GA, MDH.NA

Vehicle Applications: Porsche 981 Boxster/Cayman, 997.2 (2009-2012), 991.1 (2012-2016), and 991.2 (2017-2019) models with compatible engine configurations.

Cometic MLX gaskets feature an advanced multi-layer design that allows the gasket to adapt to flange imperfections while maintaining excellent recovery properties. The proprietary coating ensures consistent sealing even under severe thermal cycling and high combustion pressures common in performance and racing applications.