Cometic Gasket MLS Cylinder Head Gasket

2005–2010 Chrysler 300C, 2006–2010 Dodge Charger, 2008–2010 Dodge Challenger, 2006–2008 Dodge Magnum, 2006–2010 Jeep Grand Cherokee 6.1L Gen-3 Hemi

Part #: C5890-030

Overview

The Cometic Gasket MLS (Multi-Layer Steel) Cylinder Head Gasket is a precision-engineered sealing solution designed specifically for the Chrysler 6.1L Gen-3 Hemi engine. It provides a reliable and durable seal between the cylinder head and engine block, ensuring optimal compression and preventing leaks under high-performance and demanding conditions. This gasket is ideal for engine rebuilds, performance upgrades, and restoration projects on popular Chrysler, Dodge, and Jeep models equipped with the 6.1L Hemi.

Built to meet the rigorous demands of modern high-output engines, the Cometic MLS gasket eliminates the need for additional sealants and is compatible with both aluminum-to-aluminum and aluminum-to-cast iron applications. Whether you are a professional mechanic, engine builder, or automotive enthusiast, this gasket delivers the strength and precision necessary for long-lasting engine reliability.

Key Features

Cometic’s MLS Cylinder Head Gasket incorporates advanced materials and design elements to ensure superior sealing performance and durability:

• Constructed from multiple embossed layers of stainless steel for enhanced strength and longevity
• Outer layers coated with heat-resistant Viton rubber, rated up to 250°C (482°F), for superior sealing against oil, coolant, and combustion gases
• Compressed operating thickness of 0.036" maintains precise sealing under high cylinder pressures
• Embossed outer layers conform to surface irregularities, improving gasket sealing integrity
• Center shim layer of uncoated stainless steel allows for thickness customization and consistent compression
• Designed to resist corrosion and withstand shearing forces between dissimilar metals such as aluminum heads and cast iron blocks
• No additional sealants required, simplifying installation and reducing potential failure points
• Specifically engineered for Chrysler 6.1L Gen-3 Hemi engines with a 4.250" bore diameter

Construction & Design

The Cometic MLS head gasket features a robust multi-layer steel construction that balances strength with flexibility. Multiple layers of stainless steel are bonded together, with the outermost layers embossed and coated on both sides with Viton rubber. This coating provides excellent resistance to heat, oil, and coolant, ensuring a reliable seal even in extreme operating environments.

The embossed design on the outer layers enhances the gasket’s ability to conform to the cylinder head and block surfaces, compensating for minor imperfections and improving sealing integrity. The uncoated stainless steel center shim provides structural support and can be tailored to specific thickness requirements, allowing for precise engine assembly and optimal compression.

Installation & Fitment

This MLS cylinder head gasket is a direct-fit replacement for a wide range of Chrysler, Dodge, and Jeep vehicles equipped with the 6.1L Gen-3 Hemi engine. Compatible models include:

• Chrysler 300 Base (2005–2007), 300 C (2005–2010), 300 C SRT8 (2005–2010), 300 Limited (2005–2010), 300 LX (2008–2009), 300 S (2010), 300 Signature Series (2009), 300 Touring (2005–2010)
• Dodge Challenger R/T (2009–2010), SE (2009–2010), SRT8 (2008–2010)
• Dodge Charger Base (2006–2007), Daytona R/T (2006), Pursuit (2006–2010), R/T (2006–2010), SE (2006–2010), SRT8 (2006–2010), SXT (2006–2010)
• Dodge Magnum R/T (2006–2008), SE (2006–2008), SRT8 (2006–2008), SXT (2006–2008)
• Jeep Grand Cherokee 65th Anniversary Edition (2006), Laredo (2006–2010), Limited (2006–2010), Overland (2006–2009), SRT8 (2006–2010)

Installation requires standard head gasket replacement procedures. No special sealants are needed, which simplifies the process and reduces installation time. Proper surface preparation and adherence to manufacturer torque specifications are essential to ensure optimal gasket performance and longevity.

What's Included

• One Cometic MLS Cylinder Head Gasket (Part # C5890-030)

Ideal For

This gasket is ideal for automotive enthusiasts, professional mechanics, and engine builders who demand reliable sealing solutions for high-performance Chrysler 6.1L Gen-3 Hemi engines. It is perfectly suited for engine rebuilds, performance upgrades, and restoration projects requiring durable, precision-engineered head gaskets that maintain integrity under extreme conditions.

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.