Cometic H0952SP1040S MLS Head Gasket BMW M50/B20 81mm .040 Inch

The Cometic H0952SP1040S is a high-performance Multi-Layer Steel (MLS) head gasket engineered specifically for BMW M50/B20 engines with an 81mm bore diameter and .040 inch compressed thickness. This precision-manufactured gasket delivers superior sealing performance for both stock and high-output engine applications.

Advanced MLS Construction:

• Multiple layers of stainless steel construction for maximum strength and durability
• Embossed outer layers with .001 inch thick Viton rubber coating bonded to stainless steel
• Variable center layer design allows precise thickness control
• Heat resistant Viton coating withstands temperatures up to 482°F (250°C)
• Stainless steel materials provide exceptional rebound characteristics and corrosion resistance

Performance Features:

• Pre-coated with integrated sealant - installs dry with no additional sealers required
• Embossed layers act as springs to compensate for head lift under high cylinder pressure
• Load-controlled embossments distribute sealing pressure evenly across the surface
• No re-torque required after initial installation
• Ideal for aluminum-to-aluminum or aluminum-to-cast iron sealing applications
• Excellent for turbocharged and high-boost applications

Cometic MLS gaskets create a chemical bond with cylinder head and block surfaces during the first heat cycle, providing unmatched sealing performance under extreme conditions. The .040 inch thickness maintains optimal compression ratios for performance builds while ensuring proper piston-to-head clearance.