Cometic MLS Cylinder Head Gasket

2005–2010 Scion tC / 2008–2012 Scion xB with Toyota 2AZ-FE/2AZ-FXE Engine

C4506-040

Overview:

The Cometic MLS (Multi-Layer Steel) Cylinder Head Gasket is engineered to deliver superior sealing performance for high-output Toyota 2AZ-FE and 2AZ-FXE engines. Designed specifically for Scion tC models from 2005 to 2010 and Scion xB models from 2008 to 2012, this gasket ensures reliable operation under demanding conditions without the need for additional sealants.

Ideal for enthusiasts and professional mechanics alike, this gasket supports both aluminum-to-aluminum and aluminum-to-cast-iron engine configurations. It offers enhanced durability and corrosion resistance, making it a dependable choice for daily drivers and performance builds.

Key Features:

This Cometic MLS head gasket incorporates advanced materials and design to meet the rigorous demands of modern engines:

• Constructed from multiple embossed layers of stainless steel for increased strength and flexibility.
• Outer layers coated with Viton rubber, a heat-resistant elastomer rated up to 250°C (482°F), providing excellent sealing under extreme conditions.
• Embossed outer layers enhance sealing by conforming to surface irregularities on cylinder heads and blocks.
• Center shim layer of uncoated stainless steel allows for precise thickness customization to meet specific engine requirements.
• Compressed operating thickness of approximately 0.036 inches ensures optimal sealing without excessive compression.
• Designed to withstand the shearing forces between dissimilar metals such as aluminum heads and cast iron blocks.
• Corrosion-resistant construction extends gasket life and maintains reliable sealing over time.
• Requires no additional sealants, simplifying installation and reducing the risk of leaks.

Construction & Design:

The gasket’s multi-layer steel design features embossed stainless steel layers that provide both strength and flexibility. The Viton coating on the outer layers offers exceptional resistance to heat, chemicals, and wear, ensuring a durable seal in harsh engine environments. This combination allows the gasket to rebound and maintain sealing integrity despite thermal cycling and mechanical stresses.

Its design accommodates the unique challenges of sealing aluminum cylinder heads to either aluminum or cast iron engine blocks, effectively managing the differential expansion and contraction of these materials. The precise thickness and layered construction help maintain a consistent seal, preventing leaks that could lead to engine damage.

Installation & Fitment:

This Cometic MLS Cylinder Head Gasket is a direct replacement part engineered to fit the following vehicles and engine configurations without modification:

• Scion tC Base (2005–2010)
• Scion tC Spec (2007–2008)
• Scion xB Base (2008–2012)
• Toyota Camry Base (2005–2006, 2009)
• Toyota Camry CE (2007–2008)
• Toyota Camry LE, SE, XLE (2002–2009)
• Toyota Corolla XRS (2009–2010)
• Toyota Highlander Base (2001–2007)
• Toyota Matrix S, XRS (2009–2011)
• Toyota RAV4 Base, L, Limited, Sport (2004–2008)
• Toyota Solara SE, SE Sport, SLE, Sport (2002–2008)

No cutting, drilling, or special tuning is required for installation. The gasket uses factory mounting points and maintains OEM specifications for bore size and thickness, ensuring a straightforward and reliable fit.

What's Included:

• One Cometic MLS Cylinder Head Gasket with 92mm bore and .040 inch thickness

Ideal For:

• Performance enthusiasts seeking reliable sealing for high-output Toyota 2AZ-FE/2AZ-FXE engines
• Daily drivers requiring durable, long-lasting head gasket replacement
• Engine rebuilders and professional mechanics needing a precision-engineered MLS gasket
• Applications involving aluminum-to-aluminum or aluminum-to-cast iron engine configurations

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.