Cometic Gasket MLS Head Gasket

2011–2024 Dodge Ram 2500, Ram 3500, Jeep Grand Cherokee, Dodge Charger, Dodge Challenger, Dodge Durango, Chrysler 300 6.4L 392 HEMI

Part #: C15172-044

Overview

The Cometic MLS Head Gasket with a 4.150" bore and .044" thickness is precision-engineered for Dodge 6.4L 392 HEMI engines spanning model years 2011 through 2024. This multi-layer steel (MLS) gasket is designed to deliver exceptional sealing reliability and durability, meeting the rigorous demands of high-output performance engines. Whether you are rebuilding, upgrading, or maintaining your HEMI engine, this gasket ensures optimal sealing to preserve engine integrity and performance under extreme conditions.

Ideal for both professional engine builders and performance enthusiasts, the Cometic MLS gasket withstands the thermal and mechanical stresses common in modern aluminum-to-aluminum and aluminum-to-cast iron engine assemblies. It offers a dependable sealing solution that supports enhanced power levels and longevity in demanding applications.

Key Features

Cometic MLS Head Gaskets incorporate advanced materials and design elements to provide superior sealing and durability for high-performance engines:

• Multi-layer steel construction enhances strength and flexibility for reliable sealing
• Embossed outer layers coated with heat-resistant Viton rubber for superior sealing under extreme temperatures
• Precise compressed operating thickness of 0.098" ensures an accurate fit and consistent sealing
• Engineered to handle shearing forces between aluminum heads and blocks or cast iron blocks
• Corrosion-resistant stainless steel layers provide long-lasting durability
• Center shim layer of uncoated stainless steel accommodates thickness variations for consistent gasket performance
• Viton coating rated to withstand temperatures up to 250°C (482°F)
• No additional sealants required, simplifying installation and reducing potential failure points

Construction & Design

The Cometic MLS Head Gasket is constructed from multiple embossed layers of high-grade stainless steel, delivering a robust yet flexible sealing surface that adapts to engine component variations. The outer layers are coated with Viton, a fluorocarbon elastomer known for excellent heat resistance and chemical stability, ensuring a reliable seal even under extreme thermal and mechanical loads.

The embossed design enhances sealing by allowing controlled compression and rebound, compensating for surface irregularities and thermal expansion differences between the cylinder heads and engine block. The center shim layer is uncoated stainless steel, precisely engineered to maintain consistent gasket thickness and accommodate the specific bore size and thickness requirements of the 6.4L 392 HEMI engine. This multi-layer approach results in a gasket that resists corrosion, maintains integrity under high cylinder pressures, and adapts to the dynamic environment of modern performance engines.

Installation & Fitment

This MLS head gasket is a direct-fit replacement for Dodge 6.4L 392 HEMI engines from 2011 through 2024. It fits a wide range of vehicles including the 2014–2019 Ram 3500 and Ram 2500, 2015–2019 Jeep Grand Cherokee 6.4L SRT, 2018–2019 Dodge Durango 6.4L 392, 2012–2019 Dodge Charger 6.4L 392, 2011–2019 Dodge Challenger 6.4L 392, 2012–2014 Jeep Grand Cherokee 6.4L SRT8, and 2012–2014 Chrysler 300 6.4L 392.

Installation follows standard head gasket replacement procedures with no need for additional sealants or special treatments, simplifying the process and ensuring consistent results. Proper surface preparation and adherence to manufacturer torque specifications are essential to maximize sealing performance and gasket longevity. This gasket is engineered to withstand both factory and aftermarket performance levels typical of the 6.4L HEMI platform.

What's Included

• One Cometic MLS Head Gasket, 4.150" bore, .044" thickness

Ideal For

This head gasket is perfect for performance enthusiasts, professional engine builders, and mechanics working on Dodge 6.4L 392 HEMI engines from 2011 to 2024. It is especially suited for those seeking a high-quality, reliable gasket capable of withstanding increased cylinder pressures and thermal cycling associated with high-output, modified, or heavy-duty applications. Whether for street performance, racing, or demanding daily driving, this gasket delivers dependable sealing and durability to protect your investment and maintain engine 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.