Cometic Gasket MLS Head Gasket

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

Part #: C5876-060

Overview

The Cometic MLS (Multi-Layer Steel) Head Gasket is a premium sealing solution engineered specifically for the 2005 to 2010 Dodge 6.1L HEMI engines featuring iron blocks. Designed to meet the demands of high-output performance engines, this gasket ensures a reliable, leak-free seal under extreme conditions. Its 0.060-inch compressed thickness provides optimal sealing without the need for additional sealants, making it an excellent choice for both street-driven vehicles and performance builds.

Ideal for engines with aluminum cylinder heads mated to iron blocks, the Cometic MLS gasket effectively compensates for the differing expansion rates of these metals. This advanced design offers enhanced durability and peace of mind for enthusiasts, engine builders, and mechanics focused on maintaining engine integrity during rebuilds or upgrades.

Key Features

Cometic MLS head gaskets incorporate advanced materials and design features to deliver superior sealing performance and long-lasting durability. Key features include:

• Multi-layer steel construction for exceptional strength and resistance to blowouts
• Embossed outer layers coated with Viton rubber for superior sealing and heat resistance
• Compressed operating thickness of 0.060 inches for precise and consistent sealing
• Engineered to withstand shearing forces between aluminum heads and iron blocks
• Corrosion-resistant stainless steel layers for extended service life
• No sealants required, simplifying installation and reducing potential failure points
• Viton coating rated for heat resistance up to 250°C (482°F)
• Center shim layer of uncoated stainless steel allows for thickness customization

Construction & Design

The Cometic MLS head gasket features a sophisticated multi-layer design composed of embossed stainless steel sheets. The outer layers are coated on both sides with Viton, a high-performance fluoroelastomer known for its excellent heat resistance and chemical durability. This coating ensures a tight seal against combustion gases, coolant, and oil, even under extreme thermal cycling and pressure.

The gasket’s center shim layer is made from uncoated stainless steel, allowing for precise thickness adjustments to accommodate specific engine tolerances. The embossed layers enhance the gasket’s ability to conform to surface irregularities, improving sealing capability and maintaining integrity despite the differential expansion of aluminum heads and iron blocks.

Installation & Fitment

This Cometic MLS head gasket is a direct fit replacement for Dodge 6.1L HEMI engines produced from 2005 through 2010 with iron blocks. It fits the following vehicles:

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

Installation follows standard head gasket replacement procedures without requiring modifications to the engine block or cylinder heads. Because no additional sealants are needed, installation is simplified, reducing the risk of improper sealing. For best results, ensure all mating surfaces are clean, flat, and free of debris, and follow manufacturer torque specifications and tightening sequences.

What's Included

• One Cometic MLS Head Gasket, 0.060" compressed thickness

Ideal For

This head gasket is ideal for performance enthusiasts, engine builders, and professional mechanics working on Dodge 6.1L HEMI engines from 2005 to 2010. It is especially suited for applications involving aluminum cylinder heads paired with iron blocks, including street performance, mild racing, and engine rebuilds where durability and leak prevention are critical.

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.