Cometic Gasket MLS Head Gasket

2003–2024 Dodge Ram 1500 5.7L VVT HEMI

Part #: C5749-066

Overview

The Cometic Gasket MLS Head Gasket is engineered to deliver superior sealing performance for the Dodge Ram 1500 equipped with the 5.7L VVT HEMI engine from 2003 through 2024. Designed for high-output engines, this multi-layer steel (MLS) gasket ensures reliable durability and leak prevention under demanding conditions. It is an ideal upgrade or replacement part for enthusiasts and professionals seeking enhanced engine reliability without the need for additional sealants.

Built to accommodate both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, this gasket effectively manages the shearing forces caused by differing metal expansion rates. Its robust construction and advanced materials make it a trusted choice for maintaining engine integrity and performance.

Key Features

Cometic’s MLS Head Gasket incorporates advanced technology and materials to meet the rigorous demands of modern engines. Key features include:

• Multi-layer steel construction for increased strength and durability
• Embossed outer layers coated with heat-resistant Viton rubber for superior sealing
• Compressed operating thickness of 0.066" for precise fitment
• Designed to withstand high shear forces between aluminum and cast iron components
• No sealants required, simplifying installation and reducing potential failure points
• Corrosion-resistant stainless steel layers to extend gasket life
• Viton coating rated to withstand temperatures up to 250°C (482°F)
• Right-hand side orientation to match specific engine requirements

Construction & Design

The Cometic MLS Head Gasket features a sophisticated multi-layer steel design, consisting of several embossed stainless steel layers. The outermost layers are coated with Viton, a high-performance fluorocarbon elastomer known for its exceptional heat resistance and chemical durability. This coating ensures a reliable seal against combustion gases and coolant leaks, even under extreme thermal cycling.

The center shim layer is made from uncoated stainless steel, allowing for precise thickness customization to meet specific engine tolerances. This layered construction not only enhances strength but also provides the necessary flexibility to accommodate the differential expansion of aluminum heads and cast iron blocks without compromising the seal.

Installation & Fitment

This MLS head gasket is designed for direct replacement on Dodge Ram 1500 models equipped with the 5.7L VVT HEMI engine from 2003 to 2024. Installation requires standard head gasket replacement procedures and does not necessitate any modifications to the engine components. The gasket’s right-hand side orientation ensures proper alignment and fitment, contributing to a straightforward installation process for professional mechanics and experienced enthusiasts alike.

What's Included

• One Cometic MLS Head Gasket, 4.100" bore, 0.066" compressed thickness, right-hand side

Ideal For

This head gasket is perfect for Dodge Ram 1500 owners seeking a durable, high-quality replacement part that supports high-output engine performance. It is especially suited for those performing engine rebuilds, upgrades, or repairs on 5.7L VVT HEMI engines, ensuring long-lasting reliability and optimal sealing under demanding conditions.