• Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
  • Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)
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Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)

Cometic MLS Head Gasket | BMW 5 Series (E28) / 3 Series (E36) / Z3 / 3 Series (E46) (C4348-040)

C4348-040

Out of stock

$143.09 USD
$168.92 USD $143.09 USD
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The Cometic Gasket MLS Head Gasket for BMW 318 and Z3 models from 1989 to 1998 is a high-performance sealing component designed for M42 and M44 engines. Constructed with multiple embossed layers of stainless steel and coated with Viton rubber on the outer layers, this gasket features a compressed thickness of 0.040 inches. It is engineered to provide maximum sealing performance in high-output engine applications, eliminating the need for sealants. The MLS (Multi-Layer Steel) design offers enhanced strength and durability, effectively handling the shearing forces generated between aluminum heads and blocks, as well as cast iron blocks. Its robust construction ensures reliable sealing under demanding conditions, making it suitable for both stock and modified engines.

This head gasket is a direct replacement for compatible BMW engines within the specified year range. It is suitable for use with aluminum heads on aluminum or cast iron blocks, providing a secure seal for high-performance and daily driving applications. The gasket is designed for easy installation as a bolt-on component, ensuring a proper fit for the M42 and M44 engine configurations. It is ideal for enthusiasts seeking improved sealing and reliability in their engine builds or rebuilds. The kit includes the gasket itself, with no additional components required for installation. Suitable for street and performance use, this MLS head gasket enhances engine integrity and longevity.

Overview

Cometic Gasket

Fits 1989–1998 BMW 318 and Z3 with M42/M44 engines

Part #: C4348-040

Overview

The Cometic BMW 318 and Z3 MLS Head Gasket is a high-performance replacement designed specifically for engines with 85mm bore sizes. Crafted from multiple embossed layers of stainless steel with a Viton rubber coating on the outer layers, this gasket offers exceptional durability and sealing capabilities. It is engineered to withstand the demanding conditions of high-output engines, ensuring a reliable seal under increased pressure and temperature. Ideal for enthusiasts and professional rebuilders, this gasket helps maintain optimal engine performance and longevity by preventing leaks and ensuring proper compression. Whether you're restoring a classic BMW or upgrading your engine for enhanced performance, this MLS head gasket provides a robust solution that supports your vehicle’s powertrain integrity. Its design supports both aluminum and cast iron engine blocks, making it versatile for various rebuild projects and performance modifications.

Key Features

This MLS head gasket features a multi-layer steel construction with embossed layers for superior strength and resilience. The Viton rubber coating enhances sealing performance and resistance to heat and chemicals. Its compressed thickness of 0.040 inches ensures a precise fit and reliable sealing, reducing the risk of head gasket failure. Designed to withstand shearing forces between different materials, it offers peace of mind during high-stress engine operation. The gasket requires no additional sealants, simplifying installation and ensuring a clean, effective seal.

Construction & Design

The gasket’s multilayer steel construction combines durability with flexibility, allowing it to accommodate thermal expansion and contraction during engine operation. The embossed layers improve structural integrity, while the Viton rubber coating provides an extra barrier against leaks and chemical exposure.

Installation & Fitment

Designed for direct replacement on BMW 318 and Z3 models from 1989 to 1998 with M42 or M44 engines, this gasket is intended for professional or experienced DIY installation. Proper torque specifications and installation procedures should be followed to ensure optimal sealing and performance.

What’s Included

The package includes one MLS head gasket tailored for 85mm bore engines, ready to support your engine rebuild or upgrade project.

Ideal For

Perfect for engine rebuilds, performance upgrades, or restoring vintage BMWs, this gasket helps maintain engine integrity and performance under demanding conditions.
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