Cometic Gasket Head Gasket

Fits 1989–1998 BMW 318 and Z3 with 86mm bore

Part #: C4349-040

Overview

The Cometic MLS (Multi-Layer Steel) Head Gasket is engineered to deliver superior sealing performance for high-output engines. Designed specifically for BMW 318 and Z3 models from 1989 to 1998 with an 86mm bore, this gasket is ideal for enthusiasts and professional rebuilders seeking reliable, durable sealing solutions. Its multi-layer steel construction ensures excellent resistance to shearing forces and thermal expansion, making it suitable for both stock and modified engines. The gasket’s precise fit and high-quality materials help maintain optimal compression and prevent leaks, supporting engine longevity and performance consistency.

Key Features

This MLS head gasket features embossed layers of stainless steel coated with Viton rubber on the outer surfaces, providing enhanced durability and sealing integrity. The compressed thickness of 0.040" ensures a tight seal without compromising engine clearance. Its design allows for compatibility with aluminum heads and blocks, as well as cast iron components, making it versatile for various engine configurations. The gasket requires no additional sealants, simplifying installation and reducing the risk of installation errors. Its robust construction helps withstand the shearing forces generated by high-performance applications, ensuring reliable operation under demanding conditions.

Construction & Design

Constructed from multiple embossed stainless steel layers, this gasket features a Viton rubber coating on the outer layers for improved sealing and resistance to heat and chemicals. The precise engineering of the layers ensures a consistent and reliable seal across the entire head surface, even under high pressure and temperature variations.

Installation & Fitment

Designed as a direct replacement for OEM head gaskets, this MLS gasket is intended for straightforward installation during engine rebuilds or head gasket replacements. Proper cleaning and preparation of mating surfaces are recommended to ensure optimal sealing performance.

What’s Included

The package includes one MLS head gasket tailored for BMW 318 and Z3 models with an 86mm bore, designed to provide a secure and lasting seal for your engine rebuild or upgrade.

Ideal For

Perfect for automotive enthusiasts, professional rebuilders, and anyone looking to restore or enhance the performance and reliability of their BMW engine with a high-quality, durable head gasket.