Cometic Gasket Aluminum MLS Head Gasket

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

Part #: C5526-051

Overview

The Cometic Gasket Aluminum MLS Head Gasket is a precision-engineered replacement designed specifically for Chrysler and Dodge vehicles equipped with the 6.1L Gen-3 Hemi engine. Built to meet the demanding requirements of high-performance and SRT8 models, this head gasket ensures a reliable and durable seal between the cylinder head and engine block. It effectively prevents leaks, maintains optimal compression, and supports the power output and efficiency of your engine.

Ideal for enthusiasts, professional mechanics, and performance builders, this gasket is perfect for engine rebuilds, repairs, or upgrades. Its advanced construction and compatibility with aluminum sleeved blocks provide enhanced durability and peace of mind under high combustion pressures and temperatures.

Key Features

Cometic’s Aluminum MLS Head Gasket combines innovative materials and design to deliver superior sealing performance and longevity. Key features include:

• Multi-Layer Steel (MLS) construction for enhanced durability and sealing integrity
• Precision .051 inch thickness optimized for the 6.1L Gen-3 Hemi engine
• 4.125 inch bore size tailored to factory specifications for a perfect seal
• Compatibility with aluminum sleeved engine blocks to reduce warping and gasket failure
• Embossed outer layers coated with Viton for superior chemical and heat resistance
• Designed to withstand the high combustion pressures and temperatures typical of SRT8 performance engines
• Direct OEM replacement fitment for hassle-free installation
• Manufactured under strict quality control standards for consistent, reliable performance

Construction & Design

This head gasket features a state-of-the-art multi-layer steel (MLS) design, the industry standard for modern high-performance engines. The multiple steel layers provide exceptional strength and flexibility, allowing the gasket to maintain a tight, leak-free seal despite extreme thermal cycling and high cylinder pressures common in SRT8 engines.

The embossed outer layers are coated with Viton, a high-performance elastomer that resists degradation from oil, coolant, and combustion gases, significantly extending gasket life and reliability. The gasket’s .051 inch thickness is carefully engineered to maintain the correct combustion chamber volume and compression ratio, preserving the 6.1L Gen-3 Hemi’s performance characteristics. The 4.125 inch bore size matches factory cylinder dimensions precisely, ensuring optimal sealing around each cylinder.

Compatibility with aluminum sleeved blocks further enhances durability by reducing the risk of warping or gasket failure, making this gasket an excellent choice for both stock and modified engines.

Installation & Fitment

The Cometic Aluminum MLS Head Gasket is a direct replacement for factory head gaskets on the following vehicles equipped with the 6.1L 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 requires standard head gasket replacement procedures and should be performed by a qualified technician to ensure proper torque specifications and surface preparation. No modifications are necessary, making it an ideal upgrade for engine rebuilds, performance enhancements, or repairs. Proper installation guarantees long-lasting sealing performance and engine reliability.

What's Included

• One Cometic Aluminum MLS Head Gasket (.051 inch thickness)

Ideal For

This gasket is perfect for automotive enthusiasts, professional mechanics, and performance builders working on Chrysler and Dodge SRT8 vehicles with the 6.1L Gen-3 Hemi engine. It is especially suited for those seeking a durable, high-quality head gasket capable of handling increased power levels and demanding driving conditions without sacrificing reliability or engine integrity.

Cometic Gasket supplies high-performance sealing solutions for motorsports and high-stress engine builds, with a strong focus on modern gasket materials like multi-layer steel (MLS) head gaskets. Their catalog spans head gaskets and complete gasket sets across a wide range of applications, helping builders maintain reliable combustion and fluid sealing under extreme pressure and heat.