Cometic C4393-086 BMW MLS Cylinder Head Gasket Bore - M20B20 81mm

The Cometic C4393-086 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for the BMW M20B20 inline-six engine. This precision-manufactured gasket features an 81mm bore diameter and a compressed thickness of .086 inches (2.18mm), providing exceptional sealing performance for both stock and modified applications.

Key Features:

• Multi-Layer Steel construction with multiple layers of stainless steel for superior strength and durability
• 81mm bore diameter designed for the M20B20 2.0L engine
• .086" (2.18mm) compressed gasket thickness
• Embossed stainless steel layers provide excellent recovery and conformability to sealing surfaces
• Resists corrosion, warping, and blowout under extreme combustion pressures and temperatures
• Ideal for performance builds, turbo applications, and engine rebuilds requiring reliable head sealing

Cometic MLS gaskets are engineered to maintain consistent clamping loads across the entire sealing surface, eliminating hot spots and preventing coolant and combustion gas leaks. This gasket is compatible with BMW M20B20 engines found in various E30 and E28 models from the 1980s.