Cometic Gasket Cylinder Head Gasket

2005–2010 Scion tC / 2008–2012 Scion xB

C4507-036

Overview:

The Cometic Cylinder Head Gasket is engineered to deliver superior sealing performance for high-output engines, specifically designed for Scion tC models from 2005 to 2010 and Scion xB models from 2008 to 2012. Constructed with multiple embossed layers of stainless steel and coated with heat-resistant Viton rubber, this gasket ensures a reliable seal without the need for additional sealants. It is ideal for engines featuring aluminum heads paired with either aluminum or cast iron blocks, providing durability and resistance to the stresses caused by differing metal expansion rates.

Whether you are a daily driver or a performance enthusiast, this gasket offers enhanced reliability and longevity, helping maintain optimal engine compression and preventing leaks under demanding conditions.

Key Features:

This Cometic MLS (Multi-Layer Steel) head gasket incorporates advanced materials and design to meet the rigorous demands of modern engines:

• Multi-layer stainless steel construction for increased strength and durability
• Embossed outer layers coated with Viton rubber, a heat-resistant elastomer rated up to 250°C (482°F)
• Viton coating provides excellent resistance to harsh sealing environments, load conditions, and surface finishes
• Center shim layer of uncoated stainless steel allows for precise thickness customization
• Compressed operating thickness of 0.036 inches for optimal sealing performance
• Designed to withstand the shearing forces between aluminum heads and aluminum or cast iron blocks
• Corrosion-resistant materials ensure long-term reliability
• Requires no additional sealants, simplifying installation and maintenance
• Compatible with Toyota 2AZ-FE and 2AZ-FXE engines with an 89mm bore

Construction & Design:

The gasket’s multi-layer steel design features embossed stainless steel layers that provide a resilient sealing surface capable of rebounding under pressure. The Viton rubber coating on both sides of the outer layers enhances sealing integrity by conforming to surface irregularities and resisting heat and chemical degradation. The uncoated stainless steel shim in the center offers structural support and allows for thickness variations to meet specific engine requirements. This combination of materials and design ensures a durable, leak-free seal that adapts to the thermal expansion differences between aluminum heads and various block materials.

Installation & Fitment:

This Cometic Cylinder Head Gasket is a direct fit replacement for the following vehicles and engine configurations:

• Scion tC Base (2005–2010)
• Scion tC Spec (2007–2008)
• Scion xB Base (2008–2012)

Installation is straightforward and requires no additional sealants, cutting, drilling, or special tuning. It utilizes factory mounting points and maintains OEM compatibility, ensuring a hassle-free upgrade or replacement.

What's Included:

• One Cometic MLS Cylinder Head Gasket with embossed stainless steel layers and Viton coating

Ideal For:

• Owners seeking a reliable, high-performance head gasket for Scion tC and xB models
• Enthusiasts upgrading or rebuilding engines with aluminum heads and aluminum or cast iron blocks
• Drivers who want a durable gasket that resists corrosion and thermal stress
• Those looking for a gasket that requires no additional sealants for easier installation

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.