Cometic C14143-040 MLX Cylinder Head Gasket Bore Porsche - 105mm 040 997/991

The Cometic C14143-040 is a high-performance Multi-Layer Steel (MLX) cylinder head gasket engineered specifically for Porsche flat-six engines. Designed with a precision 105mm bore diameter and .040" (1.0mm) thickness, this gasket is configured for cylinders 4-6 on the right-hand side of the engine.

Key Features:

• Multi-Layer Steel (MLX) construction provides superior sealing and durability under high-performance conditions
• Precision-machined 105mm bore diameter for exact fitment
• .040" thickness allows for fine-tuning compression ratios and deck height adjustments
• Application-specific design for right-hand side cylinders 4-6
• Compatible with multiple Porsche engine codes including A101, A103, A170, MA1.24, MA1.71, MA1.75, MA1.76, MA1.77, MDA.BA, MDB.CA, MDB.CB, MDB.XA, MDG.GA, and MDH.NA
• Engineered for 981 Boxster/Cayman, 997.2, 991.1, and 991.2 generation vehicles

Cometic MLX gaskets feature multiple layers of stainless steel with advanced coating technology to provide excellent conformability and recovery characteristics. The stopper layer design controls gasket compression and maximizes sealing around combustion chambers, water passages, and oil galleries. This gasket is ideal for both performance rebuilds and high-boost applications where reliability is critical.

Note: This gasket is sold individually and covers cylinders 4-6 only. A corresponding left-hand side gasket is required for complete cylinder head service.