Cometic Gasket MLS Cylinder Head Gasket

2011–2019 Dodge Challenger / 2012–2014 Chrysler 300 / 2012–2019 Dodge Charger / 2018–2019 Dodge Durango / 2012–2019 Jeep Grand Cherokee / 2014–2018 Ram 2500 & 3500 6.4L Apache Gen-3 Hemi

C5026-070

Overview:

The Cometic Gasket 6.4L Apache Gen-3 Hemi .070in MLS Cylinder Head Gasket is engineered for high-performance applications requiring superior sealing reliability. Designed specifically for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.4L Gen-3 Hemi engine, this gasket ensures optimal durability and leak prevention under demanding conditions. Ideal for enthusiasts and professionals upgrading or rebuilding their engines, it delivers consistent performance without the need for additional sealants.

Whether you’re restoring a Dodge Challenger Scat Pack or maintaining a Ram 2500 heavy-duty truck, this gasket provides the precision fit and robust construction necessary to maintain engine integrity and maximize power output.

Key Features:

Cometic’s MLS head gasket incorporates advanced materials and design features to meet the rigorous demands of modern high-output engines:

• Multi-Layer Steel (MLS) construction with multiple embossed stainless steel layers for enhanced strength and sealing.
• Outer layers coated with Viton rubber, a heat-resistant elastomer rated up to 250°C (482°F), providing superior sealing against combustion gases and coolant leaks.
• Compressed operating thickness of 0.036 inches ensures precise sealing and optimal compression ratio maintenance.
• Compatible with aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, resisting shearing forces between dissimilar metals.
• Corrosion-resistant stainless steel layers improve longevity and reliability in harsh engine environments.
• Designed for a 4.120-inch bore size, matching factory specifications for the 6.4L Gen-3 Hemi engine.
• Requires no additional sealants, simplifying installation and reducing potential failure points.
• Right-hand side (RHS) configuration with coating on both sides for enhanced sealing performance.

Construction & Design:

The gasket’s core is constructed from multiple layers of high-grade stainless steel, each embossed to improve sealing contact and flexibility. The outermost layers are coated with Viton, a premium fluorocarbon elastomer known for its exceptional heat resistance and chemical durability. This coating ensures a tight seal against combustion pressures and fluid leaks, even under extreme thermal cycling.

The uncoated stainless steel shim layer in the center provides structural integrity and allows for precise thickness control, accommodating the specific .070-inch thickness requirement for the 6.4L Gen-3 Hemi. This multi-layer design enables the gasket to absorb and rebound from the stresses caused by engine operation, maintaining a reliable seal over time.

Installation & Fitment:

This MLS cylinder head gasket is a direct replacement for factory gaskets on compatible vehicles, fitting a wide range of models including the Dodge Challenger (2011–2019), Chrysler 300 SRT8 (2012–2014), Dodge Charger (2012–2019), Jeep Grand Cherokee SRT (2012–2019), Dodge Durango SRT (2018–2019), and Ram 2500/3500 trucks (2014–2018). Installation requires standard head gasket replacement procedures and does not necessitate any modifications to the engine block or cylinder heads.

Because the gasket is designed to fit OEM specifications, it ensures proper sealing without the need for additional sealants or adhesives, streamlining the installation process and reducing the risk of leaks.

What's Included:

• One Cometic Gasket 6.4L Apache Gen-3 Hemi .070in MLS Cylinder Head Gasket (RHS, Viton coated both sides)

Ideal For:

This gasket is perfect for performance enthusiasts, professional engine builders, and mechanics working on high-output 6.4L Gen-3 Hemi engines. It is especially suited for vehicles used in street performance, occasional track use, or heavy-duty applications where reliable sealing and durability are critical.

Whether upgrading a muscle car, maintaining a powerful SUV, or rebuilding a heavy-duty truck engine, this Cometic MLS gasket provides the confidence and quality needed to support demanding 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.