Cometic Gasket 6.4L Apache Gen-3 Hemi 4.120in Bore .075in MLS Cylinder Head Gasket RHS: Chrysler 300 (12-14) / Dodge Challenger (11-19) / Charger (12-19) / Durango (18-19) / Jeep Grand Cherokee (12-19) / Ram 2500 (14-18) / 3500 (14-18)

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

C5026-075

Overview:

The Cometic Gasket 6.4L Apache Gen-3 Hemi MLS Cylinder Head Gasket is engineered to deliver superior sealing performance for high-output Chrysler, Dodge, Jeep, and Ram engines. Designed specifically for the 6.4L Gen-3 Hemi with a 4.120-inch bore and a compressed thickness of 0.036 inches, this gasket ensures reliable durability under demanding conditions. Ideal for enthusiasts and professional builders alike, it provides a robust solution for maintaining engine integrity and preventing leaks in performance and stock applications.

Whether you’re upgrading your Dodge Challenger, Chrysler 300, Jeep Grand Cherokee, or Ram 2500/3500, this gasket offers a precision fit and long-lasting reliability, making it an essential component for engine rebuilds or upgrades.

Key Features:

Cometic’s MLS Cylinder Head Gasket incorporates advanced materials and design to meet the rigorous demands of modern high-performance engines:

• Multi-Layer Steel (MLS) construction for enhanced strength and durability
• Embossed outer layers coated with Viton rubber for superior sealing and heat resistance
• Compressed operating thickness of 0.036 inches for optimal head-to-block sealing
• Compatible with aluminum heads to aluminum blocks and aluminum heads to cast iron blocks
• Resistant to corrosion and capable of withstanding shearing forces between dissimilar metals
• No sealants required, simplifying installation and ensuring consistent performance
• Designed specifically for the 6.4L Gen-3 Hemi engine with a 4.120-inch bore
• Viton coating withstands temperatures up to 250°C (482°F), ideal for harsh sealing environments

Construction & Design:

This cylinder head gasket features a sophisticated multi-layer steel design, consisting of several embossed stainless steel layers that provide exceptional strength and flexibility. The outer layers are coated on both sides with Viton, a high-performance fluoroelastomer rubber known for its excellent heat resistance and sealing capabilities. This coating ensures a tight seal against combustion pressures and prevents leaks even under extreme thermal cycling.

The center shim layer is made of uncoated stainless steel, allowing for precise thickness customization to meet specific engine requirements. This combination of materials allows the gasket to rebound and maintain sealing integrity despite the expansion and contraction of engine components during operation.

Installation & Fitment:

The Cometic MLS Cylinder Head Gasket is designed for direct fitment on the right-hand side (RHS) of the 6.4L Gen-3 Hemi engines found in a wide range of Chrysler, Dodge, Jeep, and Ram vehicles. Installation requires standard head gasket replacement procedures with no additional sealants necessary, reducing installation time and complexity. This gasket is engineered to handle the stresses of both stock and performance builds without modification.

Fitment includes:

• Dodge Challenger (2011–2019)
• Chrysler 300 SRT8 (2012–2014)
• Dodge Charger (2012–2019)
• Dodge Durango SRT (2018–2019)
• Jeep Grand Cherokee SRT (2012–2019)
• Ram 2500 and 3500 (2014–2018)

What’s Included

• One Cometic MLS Cylinder Head Gasket, RHS, coated on both sides with Viton

Ideal For:

This gasket is perfect for automotive enthusiasts, professional engine builders, and performance tuners who demand reliable sealing for the 6.4L Gen-3 Hemi engine. It is well-suited for high-performance street vehicles, track cars, and heavy-duty trucks requiring durable, leak-free head gasket solutions that maintain engine efficiency and longevity under high stress.