Cometic Gasket MLS Head Gasket

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

Part #: C4349-070

Overview

The Cometic MLS (Multi-Layer Steel) Head Gasket is a high-performance sealing solution designed for BMW 318 and Z3 models from 1989 to 1998, equipped with 86mm bore engines. Crafted from multiple embossed layers of stainless steel, this gasket features a durable Viton rubber coating on the outer layers, ensuring reliable sealing under demanding conditions. It is engineered to withstand the high pressures and temperatures of modern high-output engines, providing a secure seal without the need for additional sealants. This gasket is suitable for both aluminum and cast iron engine blocks and heads, making it an ideal choice for engine rebuilds, performance upgrades, or restoring original specifications. Designed for enthusiasts and professional mechanics alike, this MLS head gasket enhances engine reliability and performance by maintaining optimal compression and preventing leaks. Its robust construction helps manage shearing forces created by different materials in the engine assembly, ensuring long-lasting durability and consistent performance.

Key Features

This MLS head gasket combines advanced materials and thoughtful design to deliver superior sealing performance. Key features include:

• Constructed from multiple embossed stainless steel layers for strength and flexibility
• Outer layers coated with Viton rubber for enhanced sealing and chemical resistance
• Compressed thickness of 0.070 inches to support high compression ratios
• Designed to seal effectively between aluminum heads and blocks, as well as cast iron components
• Eliminates the need for sealants, simplifying installation
• Engineered to withstand high temperatures and pressures typical of high-performance engines

Construction & Design

The gasket’s multi-layer steel construction ensures excellent durability and conformability, accommodating slight surface imperfections for a reliable seal. The embossed layers provide added strength and flexibility, while the Viton rubber coating enhances sealing integrity and chemical resistance, making it suitable for high-performance applications.

Installation & Fitment

Proper installation requires careful surface preparation and torque sequencing to ensure optimal sealing. This gasket is designed as a direct replacement for OEM head gaskets on compatible BMW 318 and Z3 models with 86mm bore engines from 1989 to 1998, providing a straightforward upgrade or rebuild component.

Ideal For

Ideal for engine rebuilds, performance upgrades, or restoring original engine integrity in BMW 318 and Z3 vehicles from the late 80s to the late 90s, this MLS head gasket offers a reliable sealing solution for enthusiasts seeking durability and high performance.