Cometic 6.1L Gen-3 Hemi .044 MLX Head Gasket: Chrysler 300 / Dodge Challenger / Charger / Magnum / Jeep Grand Cherokee (2005-2010)

Cometic Gasket Cylinder Head Gasket

2005–2010 Chrysler 300 / Dodge Charger / Dodge Magnum / Jeep Grand Cherokee / Dodge Challenger 6.1L Gen-3 Hemi

C15149-044

Overview:

The Cometic 6.1L Gen-3 Hemi .044 MLX Head Gasket is engineered specifically for high-performance Chrysler Gen-3 Hemi engines found in select Chrysler, Dodge, and Jeep models from 2005 to 2010. Designed to provide a superior seal between the cylinder head and engine block, this gasket is ideal for enthusiasts and professionals seeking reliable durability and enhanced engine integrity under demanding conditions.

Featuring advanced HP shim technology, this head gasket increases clampload around the combustion chamber, improving sealability especially on open deck blocks. It is a direct fit replacement for vehicles equipped with a 4.100" bore, ensuring precise compatibility and ease of installation.

Key Features:

Cometic’s 6.1L Gen-3 Hemi .044 MLX Head Gasket offers a range of benefits designed to enhance engine performance and longevity:

• HP shim technology increases clampload for improved combustion chamber sealing
• Specifically engineered for Chrysler 6.1L Gen-3 Hemi engines with a 4.100" bore
• Compatible with open deck block designs to prevent head gasket failure
• Constructed to withstand high cylinder pressures and temperatures
• Precision manufacturing ensures consistent thickness and bore alignment
• Ideal for performance and street applications requiring durable sealing solutions
• Direct fit for Chrysler 300 C SRT8, Dodge Challenger SRT8, Charger SRT8, Magnum SRT8, and Jeep Grand Cherokee SRT8 models
• Thickness of .044" balances durability with proper compression ratio maintenance

Construction & Design:

This head gasket is crafted using Cometic’s proprietary MLS (Multi-Layer Steel) technology, which combines multiple layers of high-grade steel with elastomer coatings to create a robust, flexible seal. The .044" thickness is optimized to maintain proper combustion chamber volume while providing enhanced durability against warping and gasket blowouts.

The inclusion of HP shim technology reinforces the gasket’s sealing surface around the combustion chamber, increasing clamp load and reducing the risk of leaks in high-performance or high-boost applications. This design consideration is especially critical for the open deck architecture of the Gen-3 Hemi engine block.

Installation & Fitment:

The Cometic 6.1L Gen-3 Hemi .044 MLX Head Gasket is a direct replacement part designed to fit perfectly on the following vehicles without modification:

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

Installation requires standard head gasket replacement procedures, including proper surface preparation and torque specifications as outlined by the vehicle manufacturer. No special modifications are necessary, making it suitable for both professional mechanics and experienced enthusiasts.

What's Included:

• One Cometic 6.1L Gen-3 Hemi .044 MLX Multi-Layer Steel Head Gasket

Ideal For:

This head gasket is ideal for performance enthusiasts, street drivers, and professional rebuilders who demand a reliable, high-quality sealing solution for their 6.1L Gen-3 Hemi engines. It is well-suited for vehicles subjected to increased cylinder pressures, such as those with mild to moderate power upgrades or forced induction setups, as well as stock rebuilds requiring durable OEM-level sealing.