Cometic Gasket MLS Head Gasket

2005–2010 Chrysler 300C, 2006–2008 Dodge Magnum, 2006–2010 Dodge Charger, 2006–2010 Jeep Grand Cherokee, 2008–2010 Dodge Challenger 6.1L SRT8 HEMI

Part #: C5526-098

Overview

The Cometic Gasket MLS (Multi-Layer Steel) Cylinder Head Gasket is engineered specifically for the Chrysler 6.1L Gen-3 HEMI engine, delivering exceptional sealing performance for high-output applications. Designed to meet the rigorous demands of performance enthusiasts and professional engine builders, this gasket ensures reliable durability under extreme conditions, including spirited driving and track use.

Compatible with a broad range of Chrysler, Dodge, and Jeep SRT8 models, the gasket supports both aluminum-to-aluminum and aluminum-to-cast iron block configurations. Its advanced design eliminates the need for additional sealants, simplifying installation while maintaining a clean, leak-free seal.

Key Features

Cometic’s MLS head gasket incorporates cutting-edge materials and precision engineering to provide superior sealing integrity and longevity:

• Constructed from multiple embossed layers of stainless steel for enhanced strength and flexibility
• Outer layers coated with Viton rubber, a heat-resistant elastomer rated up to 250°C (482°F)
• Compressed operating thickness of 0.036 inches for precise and consistent sealing
• Designed to withstand shearing forces between aluminum heads and both aluminum and cast iron blocks
• Corrosion-resistant materials ensure long-lasting performance under harsh engine conditions
• Center shim layer of uncoated stainless steel allows for thickness customization to match engine tolerances
• Specifically sized for a 4.125-inch bore with compatibility for aluminum sleeved blocks
• No sealants required, reducing installation complexity and potential leak points

Construction & Design

The Cometic MLS head gasket features a robust multi-layer steel construction that balances durability with flexibility. Each stainless steel layer is precision-embossed to maintain a secure seal under extreme pressure and temperature fluctuations typical of high-performance engines.

The outer layers are coated with Viton, a premium fluorocarbon elastomer known for its exceptional heat resistance and chemical stability, ensuring the gasket maintains integrity over prolonged use. The center shim layer, made from uncoated stainless steel, provides rigidity and allows for precise thickness adjustments, effectively managing differential expansion between aluminum heads and cast iron or aluminum blocks to prevent leaks and gasket failure.

Installation & Fitment

This MLS cylinder head gasket is a direct-fit replacement for the following vehicles equipped with the 6.1L Gen-3 HEMI engine:

• 2005–2010 Chrysler 300C SRT8
• 2006–2010 Dodge Charger SRT8
• 2006–2008 Dodge Magnum SRT8
• 2006–2010 Jeep Grand Cherokee SRT8
• 2008–2010 Dodge Challenger SRT8

Installation follows standard head gasket replacement procedures with no modifications required. The gasket’s design eliminates the need for additional sealants, reducing installation complexity and minimizing potential errors. Proper engine preparation and adherence to torque specifications are essential to achieve optimal sealing performance.

What's Included

• One Cometic MLS Cylinder Head Gasket (Part Number C5526-098)

Ideal For

This gasket is ideal for performance enthusiasts, professional mechanics, and engine builders working on Chrysler 6.1L Gen-3 HEMI engines who require a reliable, durable sealing solution. It is especially suited for vehicles subjected to high stress, including spirited street driving, track days, and other demanding applications where engine durability and leak prevention are critical.