Cometic Gasket MLS Cylinder 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 Gen-3 Hemi

Part #: C5876-089

Overview

The Cometic Gasket MLS Cylinder Head Gasket is a premium multi-layer steel gasket engineered for the demanding 6.1L Gen-3 Hemi engines found in select Chrysler, Dodge, and Jeep performance models. Designed to provide a reliable, leak-proof seal under high thermal and mechanical stress, this gasket is ideal for both high-output street engines and performance builds.

Whether you are rebuilding, upgrading, or maintaining your muscle car or SUV, this gasket ensures consistent sealing performance without the need for additional sealants. Its robust construction helps maintain engine integrity and efficiency, making it a trusted choice for enthusiasts and professional mechanics alike.

Key Features

Cometic’s MLS Cylinder Head Gasket incorporates advanced engineering to meet the rigorous demands of modern high-performance engines:

• Multi-layer steel (MLS) construction for superior strength and durability
• Embossed outer layers coated with heat-resistant Viton rubber for enhanced sealing
• Precise compressed operating thickness of 0.098 inches for exact fitment
• Compatible with aluminum heads to aluminum blocks and aluminum heads to cast iron blocks
• Corrosion-resistant and designed to withstand shearing forces between dissimilar metals
• Center shim layer of uncoated stainless steel tailored for optimal thickness and compression
• Heat resistance up to 250°C (482°F) due to Viton coating
• Specifically designed for Chrysler 6.1L Gen-3 Hemi engines with a 4.100-inch bore diameter
• No additional sealants required, simplifying installation and reducing leak points

Construction & Design

The Cometic MLS Cylinder Head Gasket is constructed from multiple embossed layers of stainless steel, providing a flexible yet durable sealing surface that adapts to the engine’s thermal expansion. The outer layers are coated with Viton, a high-performance fluoroelastomer known for its exceptional heat and chemical resistance, ensuring a tight seal even under extreme conditions.

The gasket’s center layer is an uncoated stainless steel shim, allowing precise customization of thickness to meet specific engine requirements. This multi-layer design effectively absorbs the differential expansion between aluminum cylinder heads and either aluminum or cast iron engine blocks, preventing leaks and maintaining long-term engine reliability.

Installation & Fitment

This MLS cylinder head gasket is a direct replacement designed for Chrysler, Dodge, and Jeep vehicles equipped with the 6.1L Gen-3 Hemi engine. It fits the following models and years:

• 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, 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, SE, SRT8, SXT (2006–2008)
• Jeep Grand Cherokee 65th Anniversary Edition (2006), Laredo (2006), Limited (2006–2010), Overland (2006–2009), SRT8 (2006–2010)

Installation requires no additional sealants, streamlining the process for professional mechanics and experienced enthusiasts. Following proper torque specifications and head bolt tightening sequences is essential to ensure optimal sealing and gasket longevity.

What's Included

• One Cometic MLS Cylinder Head Gasket (Part Number C5876-089)

Ideal For

This gasket is perfect for engine rebuilders, performance enthusiasts, and professional mechanics working on Chrysler 6.1L Gen-3 Hemi engines. It is especially suited for those seeking a durable, leak-resistant head gasket solution capable of handling high-output applications without the need for additional sealants. Whether restoring a classic muscle car or upgrading a modern SUV, this gasket provides reliable sealing performance to maintain engine efficiency and longevity.

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.