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

C5750-045

Overview:

The Cometic Gasket 5.7L Gen-3 Hemi .045in MLS Cylinder Head Gasket is engineered to deliver superior sealing performance for high-output Chrysler, Dodge, Jeep, and Ram engines. Designed specifically for the 5.7L Gen-3 Hemi V8, this gasket ensures reliable sealing between the cylinder head and engine block, preventing leaks under extreme operating conditions. Ideal for enthusiasts and professional rebuilders alike, it supports both street and performance applications without the need for additional sealants.

Built to accommodate the unique demands of aluminum and cast iron engine components, this gasket maintains integrity under thermal cycling and high combustion pressures, making it a trusted choice for maintaining engine durability and performance.

Key Features:

Cometic’s MLS head gasket incorporates advanced materials and design features to ensure optimal sealing and longevity:

• Multi-Layer Steel (MLS) construction with multiple embossed stainless steel layers for enhanced strength and durability
• 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" with a nominal thickness of 0.045" to maintain proper head-to-block clearance
• Compatible with aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, resisting shearing forces between dissimilar metals
• Corrosion-resistant materials extend gasket life and reliability
• Precision bore size of 4.100" to match factory specifications for the 5.7L Gen-3 Hemi engine
• No additional sealants required, simplifying installation and ensuring consistent performance

Construction & Design:

This gasket features a robust multi-layer steel design, combining several embossed stainless steel layers to provide exceptional strength and flexibility. The outer layers are coated with Viton, a high-performance rubber compound known for its resistance to heat, chemicals, and wear. This coating ensures a tight seal against combustion pressures and coolant passages, preventing leaks even under demanding conditions.

The center shim layer is uncoated stainless steel, allowing for precise thickness control and optimal sealing surface contact. This design accommodates the thermal expansion differences between aluminum heads and cast iron or aluminum blocks, reducing the risk of gasket failure due to material stress.

Installation & Fitment:

The Cometic MLS Cylinder Head Gasket is a direct replacement for factory gaskets on compatible 5.7L Gen-3 Hemi engines. It fits a wide range of vehicles, including Dodge Ram 1500, 2500, and 3500 models from 2003 to 2015, Dodge Durango from 2004 to 2015, Chrysler 300 from 2005 to 2015, Dodge Magnum from 2005 to 2008, Jeep Grand Cherokee from 2005 to 2015, Dodge Charger from 2006 to 2015, and Dodge Challenger from 2009 to 2015.

Installation requires standard head gasket replacement procedures. No special sealants are needed, but proper torque specifications and head bolt tightening sequences should be followed to ensure optimal sealing and gasket longevity.

What's Included:

• One Cometic Gasket 5.7L Gen-3 Hemi .045in MLS Cylinder Head Gasket (LHS)

Ideal For:

• Engine rebuilders and mechanics seeking a reliable, high-quality MLS head gasket for 5.7L Gen-3 Hemi engines
• Performance enthusiasts upgrading or maintaining their Chrysler, Dodge, Jeep, or Ram vehicles
• Owners requiring a durable gasket solution for both street and mild performance applications
• Applications involving aluminum-to-aluminum or aluminum-to-cast iron engine combinations

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.