Cometic Gasket MLS Head Gasket

2005–2010 Dodge 6.1L HEMI Iron Block

Part #: C5876-045

Overview

The Cometic Gasket MLS Head Gasket is engineered specifically for the 2005 to 2010 Dodge 6.1L HEMI engine with an iron block. Designed to deliver superior sealing performance, this multi-layer steel (MLS) gasket is ideal for high-output engines that demand reliability under extreme conditions. It eliminates the need for additional sealants, providing a clean and efficient installation process. Whether you are rebuilding or upgrading your engine, this gasket ensures a durable and leak-free seal between the cylinder head and block.

Built to withstand the stresses of mixed metal applications, such as aluminum heads mated to iron blocks, the Cometic MLS gasket offers exceptional resistance to shearing forces and thermal cycling. This makes it a trusted choice for enthusiasts and professionals seeking long-lasting engine integrity.

Key Features

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

• Multi-layer stainless steel construction for enhanced strength and durability
• Outer layers coated with Viton rubber for superior heat and chemical resistance
• Embossed sealing beads to improve compression and prevent leaks
• Compressed operating thickness of 0.045" for precise fitment and sealing
• Designed to handle the shearing forces between aluminum heads and iron blocks
• Corrosion-resistant materials to extend gasket life
• No sealants required, simplifying installation and reducing mess
• Center shim layer customizable for thickness variations and engine rebuild tolerances

Construction & Design

The Cometic MLS Head Gasket features multiple embossed layers of high-grade stainless steel, providing both strength and flexibility. The outer layers are coated on both sides with Viton, a fluorocarbon elastomer known for its exceptional heat resistance up to 250°C (482°F) and chemical durability. This coating ensures a reliable seal even under harsh operating conditions.

The gasket’s center layer is an uncoated stainless steel shim, which can be varied in thickness to accommodate specific engine rebuild requirements. This layered design allows the gasket to rebound and maintain sealing integrity despite thermal expansion and contraction, making it ideal for engines with mixed metal components.

Installation & Fitment

This MLS head gasket is a direct fit replacement for 2005–2010 Dodge 6.1L HEMI engines with iron blocks. It requires no additional sealants, streamlining the installation process and reducing the risk of improper sealing. Proper surface preparation of the cylinder head and block is essential to ensure optimal gasket performance. This gasket is compatible with both OEM and aftermarket cylinder heads designed for the specified engine.

What's Included

• One Cometic MLS Head Gasket, 4.100" bore, 0.045" compressed thickness

Ideal For

This head gasket is perfect for performance enthusiasts, engine builders, and mechanics working on Dodge 6.1L HEMI engines from 2005 to 2010. It is especially suited for those upgrading or rebuilding engines that require a durable, high-quality gasket capable of handling increased power and mixed metal applications without compromising reliability.