Cometic Gasket MLS Cylinder Head Gasket

2003–2015 Dodge Ram 1500, 2500, 3500 / 2004–2015 Dodge Durango / 2005–2015 Chrysler 300 / 2005–2008 Dodge Magnum / 2005–2015 Jeep Grand Cherokee / 2006–2015 Dodge Charger / 2009–2015 Dodge Challenger 5.7L Gen-3 Hemi

Part #: C5749-098

Overview

The Cometic Gasket MLS Cylinder Head Gasket is a precision-engineered sealing solution designed specifically for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Gen-3 Hemi engine. Built to meet the rigorous demands of high-performance and high-output engines, this multi-layer steel (MLS) gasket ensures a reliable, leak-free seal that maintains optimal compression and engine efficiency.

Ideal for engine rebuilds, upgrades, or routine maintenance, this gasket provides durability and performance without the need for additional sealants. Whether you are a professional mechanic or an automotive enthusiast, the Cometic MLS gasket offers a dependable, OEM-quality replacement that supports both aluminum-to-aluminum and aluminum-to-cast iron applications.

Key Features

Engineered for durability and precision, the Cometic MLS Cylinder Head Gasket includes the following key features:

• Multi-layer steel construction for superior strength and long-lasting durability
• Embossed outer layers coated with heat-resistant Viton rubber for enhanced sealing against combustion gases, coolant, and oil
• Compressed operating thickness of 0.036 inches for exact fitment and consistent sealing
• Compatible with aluminum heads to aluminum or cast iron blocks, accommodating various engine configurations
• Corrosion-resistant design with the ability to rebound under thermal cycling to prevent gasket failure
• Center shim layer of uncoated stainless steel to manage thickness variations and ensure precise sealing
• Heat resistance up to 250°C (482°F) thanks to the Viton coating, maintaining integrity under extreme conditions
• Eliminates the need for additional sealants during installation, simplifying the rebuild process

Construction & Design

The Cometic MLS Cylinder Head Gasket is constructed from multiple embossed layers of stainless steel, providing exceptional strength and flexibility to withstand the stresses of high-performance engines. The outer layers are coated on both sides with Viton, a premium fluoroelastomer rubber known for its excellent heat resistance and sealing properties in harsh environments. This coating ensures a tight, leak-proof seal against combustion gases, coolant, and oil.

The gasket’s center layer is an uncoated stainless steel shim that allows for precise thickness adjustments to match specific engine requirements. This multi-layer design effectively absorbs and compensates for the differential expansion between aluminum cylinder heads and cast iron or aluminum engine blocks, reducing the risk of gasket failure during thermal cycling and extreme operating conditions.

Installation & Fitment

Installation of the Cometic MLS Cylinder Head Gasket is straightforward and requires no additional sealants, making it an efficient choice for engine rebuilds or repairs. It is designed to meet or exceed OEM specifications, ensuring a precise fit without any modifications to the engine block or cylinder head.

This gasket fits a wide range of vehicles equipped with the Chrysler 5.7L Gen-3 Hemi engine, including:

• Dodge Ram 1500 (2003–2015)
• Dodge Ram 2500 (2003–2015)
• Dodge Ram 3500 (2003–2015)
• Dodge Durango (2004–2015)
• Chrysler 300 (2005–2015)
• Dodge Magnum (2005–2008)
• Jeep Grand Cherokee (2005–2015)
• Dodge Charger (2006–2015)
• Dodge Challenger (2009–2015)
• Jeep Commander (2006–2010)

What's Included

• One Cometic MLS Cylinder Head Gasket (Part # C5749-098)

Ideal For

This gasket is perfect for automotive enthusiasts, professional mechanics, and engine rebuilders who require a high-quality, durable sealing solution for Chrysler, Dodge, Jeep, and Ram vehicles with the 5.7L Gen-3 Hemi engine. It is especially suited for high-performance applications, engine rebuilds, and maintenance where reliability and longevity are essential.

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.