Cometic Gasket cgsC5781-045 Porsche 928 100mm Bore 0.045 in MLS Head Gasket - Left Side

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.045". Left Side. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements. Porsche M28.41/M28.42/M28.43/M28.44/M28.45/M28.46/M28.47/M28.49/M28.50 928 .045in. MLS Cylinder Head Gasket; 100mm Bore; LHS

• The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes
• The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements
• Requires less clamp load creating less bore distortion
• Conforms load distribution across the sealing area
• Embossed Outer Layers Coated w/Viton

The Cometic Gasket cgsC5781-045 is a left-side MLS cylinder head gasket for Porsche 928 applications with a 100mm bore. Constructed from multiple embossed stainless steel layers, it uses Viton-coated outer layers and an uncoated stainless steel center layer for sealing performance in demanding engine environments. The compressed operating thickness is 0.045 inch.

Designed for high-output engines, this multi-layer steel gasket requires no sealants and is suitable for aluminum heads paired with aluminum or cast iron blocks. Its layered stainless steel construction provides increased strength, rebound capability, and corrosion resistance while accommodating the shearing forces created between different materials. The embossed outer layers conform load distribution across the sealing area, require less clamp load, and help reduce bore distortion. Viton coating is heat resistant to 482°F.

Key Features & Performance Benefits

• Multi-layer stainless steel construction: Provides increased strength, rebound capability, and corrosion resistance.
• Viton-coated embossed outer layers: Address harsh sealing environments, load conditions, and surface finishes.
• Reduced clamp-load requirement: Helps create less bore distortion.
• Conformed load distribution: Promotes consistent loading across the sealing area.

Key Product Specifications & Technical Data

• Brand: Cometic Gasket
• Part number: cgsC5781-045
• Gasket type: MLS cylinder head gasket
• Application position: Left side
• Bore: 100mm
• Compressed operating thickness: 0.045 inch
• Outer-layer coating: Viton
• Center layer: Uncoated stainless steel

What's Included in the Box

• One left-side Cometic MLS cylinder head gasket

Fitment

Fits 1987, 1988, 1989, 1990, 1991, 1993, 1994, and 1995 Porsche 928 models. The supplied fitment data lists some model years more than once.

Fitments:
1983 Porsche 928 S
1984 Porsche 928 S
1985 Porsche 928 S
1986 Porsche 928 S
1987 Porsche 928 S4
1988 Porsche 928 S4
1989 Porsche 928 S4
1990 Porsche 928 Base
1990 Porsche 928 GT
1991 Porsche 928 Base
1991 Porsche 928 GT
1993 Porsche 928 GTS
1994 Porsche 928 GTS
1995 Porsche 928 GTS

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1