Cometic Gasket MLS Cylinder Head Gasket

2003–2015 Dodge Ram 1500, 2500, 3500, Dodge Durango, Chrysler 300, Dodge Magnum, Jeep Grand Cherokee, Dodge Charger, Dodge Challenger 5.7L Gen-3 Hemi

Part #: C5467-045

Overview

The Cometic Gasket 5.7L Gen-3 Hemi .045in MLS Cylinder Head Gasket is a premium replacement part engineered to deliver exceptional sealing performance for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Gen-3 Hemi engine. Designed for both professional mechanics and automotive enthusiasts, this gasket ensures a reliable seal between the cylinder head and engine block, preventing leaks and preserving engine integrity under high combustion pressures and thermal stress.

Whether you are performing a routine repair or building a performance engine, this gasket offers durability and consistent compression retention, helping maintain engine efficiency and power output. It is an ideal choice for stock replacements as well as moderate performance upgrades.

Key Features

Cometic’s MLS cylinder head gasket incorporates advanced materials and precision engineering to meet the demanding requirements of the 5.7L Gen-3 Hemi engine:

• Multi-Layer Steel (MLS) construction with three to five layers of stainless steel for superior strength and longevity
• Embossed outer layers coated with heat-resistant Viton rubber for enhanced sealing and corrosion resistance
• Viton coating withstands temperatures up to 250°C (482°F), ensuring reliable performance in high-heat environments
• Precisely engineered 3.950-inch bore size for perfect fitment and sealing on the 5.7L Gen-3 Hemi
• Designed to resist blowouts and maintain seal integrity under high combustion pressures
• Compatible with a wide range of OEM surface finishes and load conditions
• Right-hand side (RHS) specific design for accurate installation and fitment

Construction & Design

The Cometic MLS gasket is crafted from premium stainless steel layers that provide exceptional tensile strength and flexibility. This multi-layer steel design allows the gasket to conform and rebound to surface irregularities, ensuring a tight, leak-free seal even during extreme thermal expansion and contraction cycles typical of modern V8 engines.

Both sides of the gasket feature an embossed outer layer coated with durable Viton rubber, which enhances sealing performance while protecting against corrosion and chemical attack. Viton’s high heat resistance makes this gasket ideal for the demanding thermal environment of the 5.7L Gen-3 Hemi engine, maintaining integrity during prolonged high-temperature operation.

Installation & Fitment

This gasket is a direct replacement for the right-hand side cylinder head on 5.7L Gen-3 Hemi engines found in a wide range of Chrysler, Dodge, Jeep, and Ram models from 2003 through 2015. Installation follows standard cylinder head gasket replacement procedures and requires no modifications to the engine block or cylinder head. Proper surface preparation and adherence to torque specifications are essential to ensure optimal sealing and long service life.

Fitment includes but is not limited to:

• 2003–2010, 2011–2015 Dodge Ram 1500 5.7L Hemi
• 2003–2010, 2011–2015 Dodge Ram 2500 5.7L Hemi
• 2003–2009, 2011–2015 Dodge Ram 3500 5.7L Hemi
• 2004–2015 Dodge Durango 5.7L Hemi
• 2005–2015 Chrysler 300 5.7L Hemi
• 2005–2008 Dodge Magnum 5.7L Hemi
• 2005–2015 Jeep Grand Cherokee 5.7L Hemi
• 2006–2015 Dodge Charger 5.7L Hemi
• 2009–2015 Dodge Challenger 5.7L Hemi
• 2006–2010 Jeep Commander 5.7L Hemi

What's Included

• One Cometic MLS Cylinder Head Gasket, .045 inch thickness, right-hand side (RHS) for 5.7L Gen-3 Hemi

Ideal For

This gasket is perfect for vehicle owners, mechanics, and performance enthusiasts seeking a high-quality, durable replacement for the cylinder head gasket on 5.7L Gen-3 Hemi engines. It suits daily drivers, performance builds, and engine rebuilds requiring reliable sealing under both stock and moderately enhanced operating 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.