| Year | Make | Model |
|---|---|---|
| 1982 - 1994 | BMW | 3 Series (E30) |
| 1981 - 1988 | BMW | 5 Series (E28) |
| 1988 - 1997 | BMW | 5 Series (E34) |
| 1976 - 1990 | BMW | 6 Series (E24) |
| 1986 - 1991 | BMW | M3 |
| 1985 - 1988 | BMW | M5 I (E28) |
1
/
of
9
Cometic MLS 0.045in Cylinder Head Gasket | BMW M20B25/M20B27 (85mm Bore) (C4394-045)
Cometic MLS 0.045in Cylinder Head Gasket | BMW M20B25/M20B27 (85mm Bore) (C4394-045)
SKU:C4394-045
Out of stock
Regular price
$215.78 USD
Regular price
$254.72 USD
Sale price
$215.78 USD
Unit price
/
per
Couldn't load pickup availability
▶ Vehicle Fitments
The Cometic Gasket BMW M20B25/M20B27 .045in MLS Cylinder Head Gasket is a high-performance sealing component designed for BMW engines. Constructed from multiple embossed layers of stainless steel with outer layers coated in Viton rubber, this gasket ensures reliable sealing under demanding conditions. The compressed thickness of 0.045 inches provides an optimal seal for high-output engines, preventing leaks and maintaining compression. Its multi-layer steel (MLS) design offers enhanced strength and durability, making it suitable for modern engine applications. The gasket's construction allows it to withstand shearing forces between aluminum heads and blocks or cast iron components, eliminating the need for sealants and ensuring a clean, secure fit.
This MLS head gasket is compatible with BMW M20B25 and M20B27 engines, specifically designed for 85mm bore applications. It is ideal for use in high-performance street and track engines, where maximum sealing and reliability are critical. The gasket is a direct replacement for OEM components, providing an upgrade in strength and sealing performance. Installation involves replacing the existing head gasket with this MLS version, which is suitable for engines with aluminum or cast iron blocks. It is recommended for engines that demand superior sealing under high compression and boost conditions, ensuring long-lasting performance and engine integrity.
Share
Overview
Overview
Cometic Gasket
Fits BMW M20B25 and M20B27 engines with 85mm bore
Part #: C4394-045
Overview
The Cometic MLS (Multi-Layer Steel) Cylinder Head Gasket is engineered to deliver superior sealing performance for high-output engines. Crafted from multiple embossed layers of stainless steel with a durable Viton rubber coating on the outer layers, this gasket is designed to withstand the demanding conditions of modern performance applications. It is an ideal choice for enthusiasts and professionals seeking reliable sealing between the cylinder head and engine block, whether working with aluminum or cast iron components. The compressed thickness of 0.045 inches ensures optimal clearance and compression, supporting engine efficiency and longevity. This gasket is suitable for BMW M20B25 and M20B27 engines with an 85mm bore, making it a perfect upgrade or replacement for those restoring or enhancing their vehicle’s performance. Its robust construction helps prevent leaks, maintain compression, and withstand the shearing forces created by different materials in the engine assembly. The gasket’s design eliminates the need for sealants, simplifying installation and ensuring a clean, secure seal every time.Key Features
Designed with high-performance engines in mind, this MLS gasket offers several key benefits:- Constructed from multiple embossed stainless steel layers for durability and strength
- Outer layers coated with Viton rubber for enhanced sealing and chemical resistance
- Compressed thickness of 0.045 inches to support optimal engine compression
- Suitable for aluminum-to-aluminum and aluminum-to-cast iron head-to-block applications
- Resistant to shearing forces between different engine materials
- Requires no additional sealants for installation, ensuring a clean and reliable seal
Construction & Design
This gasket features a multi-layer steel design with embossed layers that provide flexibility and strength under high pressure. The Viton rubber coating on the outer layers enhances sealing performance and chemical resistance, making it suitable for high-performance and high-temperature environments. Its precise manufacturing ensures a perfect fit for the specified BMW engines, supporting consistent compression and preventing leaks.Installation & Fitment
Designed as a direct replacement for OEM head gaskets on BMW M20B25 and M20B27 engines with an 85mm bore, this gasket simplifies installation. Proper torque specifications and installation procedures should be followed to ensure optimal sealing and performance.What’s Included
The package includes one MLS cylinder head gasket designed specifically for the BMW M20B25 and M20B27 engines with an 85mm bore, ready for installation.
