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 Gen-3 Hemi

Part #: C5042-080

Overview

The Cometic Gasket MLS Cylinder Head Gasket is a premium sealing solution engineered specifically for Chrysler’s 6.1L Gen-3 Hemi engines found in performance models such as the Chrysler 300C SRT8, Dodge Charger SRT8, Dodge Magnum SRT8, Jeep Grand Cherokee SRT8, and Dodge Challenger SRT8. Designed to withstand the rigors of both street and track use, this multi-layer steel (MLS) gasket ensures a reliable, leak-free seal between the cylinder head and engine block, maintaining optimal compression and engine efficiency under high combustion pressures.

Ideal for enthusiasts, engine builders, and professional mechanics, this gasket delivers enhanced durability and superior sealing performance to protect your high-output Hemi engine during demanding driving conditions.

Key Features

Built with advanced materials and precision engineering, the Cometic MLS Cylinder Head Gasket offers exceptional performance and reliability:

• Multi-layer steel construction featuring three to five layers for maximum strength and durability
• Outer layers embossed and coated on both sides with heat-resistant Viton rubber, rated up to 250°C (482°F)
• Excellent resistance to corrosion, chemical degradation, and exposure to oils and coolants
• Engineered to withstand high combustion pressures and repeated thermal cycling without loss of sealing integrity
• Precise bore size of 4.185 inches to match factory specifications for perfect fitment
• Thickness of 0.080 inches to maintain proper engine geometry and compression ratio
• Compatible with a variety of cylinder head surface finishes and load conditions
• Ideal for naturally aspirated and forced induction applications requiring superior gasket integrity

Construction & Design

The Cometic MLS gasket is constructed from multiple layers of high-grade stainless steel, combining strength and flexibility to maintain a consistent seal under extreme thermal expansion and contraction. The stainless steel layers provide excellent rebound characteristics, allowing the gasket to adapt to engine movement and surface imperfections without compromising sealing performance.

Both outer layers are embossed to enhance sealing capability and coated with a durable Viton rubber compound on both sides. This specialized coating improves the gasket’s ability to seal against minor surface irregularities while resisting harsh chemicals, oils, and coolant exposure commonly found in high-performance engines. The Viton material’s heat resistance up to 250°C (482°F) ensures reliable operation in demanding thermal environments.

Installation & Fitment

This gasket is a direct factory replacement designed specifically for the Chrysler 6.1L Gen-3 Hemi engine applications listed. Installation follows standard head gasket replacement procedures, including thorough surface preparation and adherence to manufacturer torque specifications. No modifications to the engine block or cylinder head are necessary, making it a straightforward upgrade for both professional mechanics and experienced enthusiasts.

For best results, always follow the recommended torque sequence and replace head bolts if specified by the manufacturer to ensure optimal sealing and longevity.

What's Included

• One Cometic MLS Cylinder Head Gasket, 0.080 inch thickness

Ideal For

This gasket is perfect for performance vehicle owners, engine builders, and automotive technicians who require a dependable, high-quality sealing solution for Chrysler 6.1L Gen-3 Hemi engines. It is especially suited for:

• Street performance and daily driving applications demanding enhanced durability
• Track and racing environments requiring consistent sealing under high stress
• Engine rebuilds and upgrades where OEM gasket replacement is necessary
• Forced induction setups where increased combustion pressures demand superior gasket 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.