Cometic MLS Head Gasket 85mm .051in — Fits BMW M50B25 M52B28 Engines

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SKU: CGSC4328-051
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Watch in action

Premium MLS Head Gasket for BMW Performance

The Cometic .051-inch MLS (Multi-Layer Steel) head gasket is the ultimate solution for BMW M50B25 and M52B28 engine builds requiring a specific compressed thickness for compression ratio tuning. Designed for durability, this gasket ensures a perfect seal between the cylinder head and block, even under the intense pressures of high-performance driving.

Why Choose Cometic MLS?

  • Compressed Thickness: 0.051 inches
  • Bore Size: 85mm
  • Material: Multi-layer stainless steel for superior rebound
  • Coating: Viton fluoroelastomer for heat resistance up to 250°C
  • Installation: No additional sealants required

Cometic's advanced MLS technology utilizes multiple layers of stainless steel to provide a robust seal that resists corrosion and thermal cycling. The outer layers are embossed and coated with Viton, creating a superior seal that adapts to the surface finish of your cylinder head and block. This gasket is specifically engineered to withstand the shearing forces found in high-output BMW engines, making it ideal for both naturally aspirated and forced induction setups. Whether you are performing a routine rebuild or a full-scale performance upgrade, this gasket offers the reliability and precision you need to keep your engine running at its peak. Explore our full catalog of engine components at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
1991-1995 BMW 325i Base
1991 BMW 325iX Base
1991-1995 BMW 325is Base
1996-1999 BMW 328i Base
1996-1999 BMW 328is Base
1990-1995 BMW 525i Base
1993 BMW 525iT Base
1997-2000 BMW 528i Base
1997-1999 BMW Z3 Roadster
1998-1999 BMW Z3 M Roadster
1999-2000 BMW Z3 M Coupe

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Watch in action

Premium MLS Head Gasket for BMW Performance

The Cometic .051-inch MLS (Multi-Layer Steel) head gasket is the ultimate solution for BMW M50B25 and M52B28 engine builds requiring a specific compressed thickness for compression ratio tuning. Designed for durability, this gasket ensures a perfect seal between the cylinder head and block, even under the intense pressures of high-performance driving.

Why Choose Cometic MLS?

  • Compressed Thickness: 0.051 inches
  • Bore Size: 85mm
  • Material: Multi-layer stainless steel for superior rebound
  • Coating: Viton fluoroelastomer for heat resistance up to 250°C
  • Installation: No additional sealants required

Cometic's advanced MLS technology utilizes multiple layers of stainless steel to provide a robust seal that resists corrosion and thermal cycling. The outer layers are embossed and coated with Viton, creating a superior seal that adapts to the surface finish of your cylinder head and block. This gasket is specifically engineered to withstand the shearing forces found in high-output BMW engines, making it ideal for both naturally aspirated and forced induction setups. Whether you are performing a routine rebuild or a full-scale performance upgrade, this gasket offers the reliability and precision you need to keep your engine running at its peak. Explore our full catalog of engine components at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
1991-1995 BMW 325i Base
1991 BMW 325iX Base
1991-1995 BMW 325is Base
1996-1999 BMW 328i Base
1996-1999 BMW 328is Base
1990-1995 BMW 525i Base
1993 BMW 525iT Base
1997-2000 BMW 528i Base
1997-1999 BMW Z3 Roadster
1998-1999 BMW Z3 M Roadster
1999-2000 BMW Z3 M Coupe

Product Details

Product Description

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Watch in action

Premium MLS Head Gasket for BMW Performance

The Cometic .051-inch MLS (Multi-Layer Steel) head gasket is the ultimate solution for BMW M50B25 and M52B28 engine builds requiring a specific compressed thickness for compression ratio tuning. Designed for durability, this gasket ensures a perfect seal between the cylinder head and block, even under the intense pressures of high-performance driving.

Why Choose Cometic MLS?

  • Compressed Thickness: 0.051 inches
  • Bore Size: 85mm
  • Material: Multi-layer stainless steel for superior rebound
  • Coating: Viton fluoroelastomer for heat resistance up to 250°C
  • Installation: No additional sealants required

Cometic's advanced MLS technology utilizes multiple layers of stainless steel to provide a robust seal that resists corrosion and thermal cycling. The outer layers are embossed and coated with Viton, creating a superior seal that adapts to the surface finish of your cylinder head and block. This gasket is specifically engineered to withstand the shearing forces found in high-output BMW engines, making it ideal for both naturally aspirated and forced induction setups. Whether you are performing a routine rebuild or a full-scale performance upgrade, this gasket offers the reliability and precision you need to keep your engine running at its peak. Explore our full catalog of engine components at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
1991-1995 BMW 325i Base
1991 BMW 325iX Base
1991-1995 BMW 325is Base
1996-1999 BMW 328i Base
1996-1999 BMW 328is Base
1990-1995 BMW 525i Base
1993 BMW 525iT Base
1997-2000 BMW 528i Base
1997-1999 BMW Z3 Roadster
1998-1999 BMW Z3 M Roadster
1999-2000 BMW Z3 M Coupe

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