Cometic Gasket Head Gasket

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

Part #: C4349-045

Overview

The Cometic MLS (Multi-Layer Steel) Head Gasket is engineered to deliver superior sealing performance for high-output engines. Crafted from multiple embossed layers of stainless steel with a 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 professional rebuilders seeking a reliable, durable solution to prevent leaks and maintain optimal engine integrity. The gasket's compressed thickness of 0.045 inches ensures a precise fit, supporting efficient combustion and heat management while resisting shearing forces between aluminum and cast iron components. This head gasket is suitable for use with both aluminum heads and blocks, as well as aluminum heads on cast iron blocks, making it versatile for various BMW 318 and Z3 engine rebuilds or upgrades. Its robust construction helps maintain proper compression and prevents coolant or oil leaks, contributing to engine longevity and consistent performance.

Key Features

This MLS head gasket features a multi-layer steel design with embossed layers for enhanced strength and sealing capability. The Viton rubber coating provides excellent resistance to heat, chemicals, and compression forces. Its precise 0.045-inch thickness ensures compatibility with stock and performance engine setups. The gasket's construction supports high-performance applications by maintaining a reliable seal under increased pressure and temperature conditions. Designed for easy installation, it offers a direct replacement for OEM gaskets, helping restore engine integrity without the need for sealants or additional modifications.

Construction & Design

The gasket's multilayer steel construction is engineered for maximum durability and sealing efficiency. The embossed layers improve structural integrity, while the Viton rubber coating enhances chemical and heat resistance. This combination ensures a long-lasting seal even under extreme engine conditions.

Installation & Fitment

Designed as a direct replacement for OEM head gaskets on BMW 318 and Z3 models from 1989 to 1998 with 86mm bore, this gasket simplifies installation during engine rebuilds or head gasket replacements. Proper torque specifications and installation procedures should be followed to ensure optimal sealing performance.

Ideal For

Perfect for engine rebuilds, performance upgrades, or restoring original factory specifications on BMW 318 and Z3 models, this gasket supports high-performance driving and reliable engine operation.