Cometic Gasket MLS Cylinder Head Gasket

2011–2019 Chrysler / Dodge / Jeep / Ram 6.4L Gen-3 Hemi

Part #: C5027-030

Overview

The Cometic Gasket MLS Cylinder Head Gasket is engineered specifically for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.4L Gen-3 Hemi engine. Designed to provide a superior seal under high cylinder pressures and extreme thermal conditions, this gasket is ideal for both performance upgrades and reliable OEM replacements. Its advanced multi-layer steel construction ensures durability and leak prevention without the need for additional sealants, making it a trusted choice for enthusiasts and professional engine builders alike.

Whether you are rebuilding or upgrading your 6.4L Apache Gen-3 Hemi, this gasket delivers consistent sealing performance that withstands the rigors of street and track use. Compatible with a wide range of popular models, it offers peace of mind and long-lasting reliability in demanding applications.

Key Features

Cometic’s MLS head gasket incorporates advanced technology to meet the exacting demands of modern high-performance engines. Key features include:

• Multi-Layer Steel (MLS) construction for enhanced strength and durability
• Embossed outer layers coated with heat- and chemical-resistant Viton rubber
• Compressed operating thickness of 0.036" for precise sealing
• Designed to withstand shearing forces between aluminum heads and aluminum or cast iron blocks
• Corrosion-resistant stainless steel layers for long-lasting performance
• Center shim layer of uncoated stainless steel for optimal thickness and sealing pressure
• No sealants required, simplifying installation and improving reliability
• Compatible with World Products Man-o-War engine blocks
• Precision bore size of 4.120 inches tailored for the 6.4L Gen-3 Hemi engine

Construction & Design

This cylinder head gasket is meticulously crafted from multiple embossed layers of stainless steel, providing exceptional strength and flexibility to maintain a reliable seal. The outer layers are coated on both sides with Viton, a high-performance fluoroelastomer rubber known for its resistance to heat up to 250°C (482°F), oils, and harsh chemicals. This coating ensures the gasket maintains integrity under extreme thermal and mechanical stress.

The center shim layer remains uncoated stainless steel, allowing precise control over thickness and sealing pressure. The embossed design enhances the gasket’s ability to conform to surface irregularities, preventing leaks and maintaining consistent compression. This construction is ideal for engines where aluminum heads are paired with aluminum or cast iron blocks, effectively managing the different expansion rates of these materials.

Installation & Fitment

The Cometic MLS Cylinder Head Gasket is a direct-fit replacement designed for a broad range of vehicles equipped with the 6.4L Gen-3 Hemi engine. Compatible models include:

• 2011–2019 Dodge Challenger 6.4L 392
• 2012–2019 Dodge Charger 6.4L 392
• 2012–2014 Chrysler 300 6.4L 392
• 2012–2014 Jeep Grand Cherokee SRT8 6.4L
• 2015–2019 Jeep Grand Cherokee 6.4L SRT
• 2018–2019 Dodge Durango 6.4L 392
• 2014–2018 Ram 1500, 2500, 3500 6.4L 392

Installation follows standard head gasket replacement procedures and requires no additional sealants, reducing the risk of installation errors. Engineered to maintain a perfect seal under high cylinder pressures and temperatures, this gasket is suitable for both street-driven and high-performance applications.

What's Included

• One Cometic 6.4L Apache Gen-3 Hemi .030in MLS Cylinder Head Gasket (LHS)

Ideal For

This MLS head gasket is ideal for performance enthusiasts, professional engine builders, and mechanics seeking a durable, high-quality sealing solution for the 6.4L Gen-3 Hemi engine. It is especially suited for those upgrading or rebuilding engines in Dodge Challenger, Charger, Chrysler 300, Jeep Grand Cherokee, Ram trucks, and Dodge Durango models requiring a gasket capable of handling increased power output and thermal loads with reliable sealing performance.

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.