Cometic Cylinder Head Gasket

2005–2010 Scion tC / 2008–2014 Scion xB (xB2)

C4507-030

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 2014. This gasket utilizes advanced Multi-Layer Steel (MLS) construction to ensure a reliable seal between the cylinder head and engine block, accommodating both aluminum and cast iron materials without the need for additional sealants.

Ideal for enthusiasts and professional mechanics alike, this gasket offers durability and resistance to harsh operating conditions, making it a dependable choice for daily drivers and performance builds. Its precise .030 inch compressed thickness and 89mm bore size ensure optimal fitment and performance for the Toyota 2AZ-FE and 2AZ-FXE engines found in these vehicles.

Key Features:

Designed with cutting-edge materials and construction techniques, the Cometic Cylinder Head Gasket provides exceptional reliability and sealing strength. Key features include:

• 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 fluor elastomer that withstands temperatures up to 250°C (482°F) and provides excellent sealing under various load conditions.
• Embossed outer layers improve gasket sealing by creating a precise sealing surface that adapts to surface irregularities.
• Center shim layer made of uncoated stainless steel, allowing for varied thickness to meet specific engine requirements.
• Compatible with aluminum heads to aluminum blocks and aluminum heads to cast iron blocks, effectively handling the shearing forces between dissimilar metals.
• Corrosion-resistant materials ensure long-lasting performance and reliability in demanding environments.
• No sealants required, simplifying installation and reducing the risk of leaks.
• Specifically designed for Toyota 2AZ-FE and 2AZ-FXE engines with an 89mm bore and .030 inch compressed thickness.

Construction & Design:

The gasket’s construction features multiple embossed layers of stainless steel, which provide the necessary strength to maintain a tight seal under high pressure and temperature conditions. The outer layers are coated with Viton rubber, a high-performance elastomer known for its excellent resistance to heat, chemicals, and mechanical stress. This coating enhances the gasket’s ability to conform to the cylinder head and block surfaces, ensuring a leak-free seal.

The center shim layer is uncoated stainless steel, allowing for precise thickness adjustments to meet the specific requirements of the engine. This layered design not only improves sealing but also allows the gasket to rebound and resist corrosion over time, extending the service life of the engine components.

Installation & Fitment:

This Cometic MLS Cylinder Head Gasket is a direct replacement part designed to fit perfectly on Scion tC models from 2005 to 2010 and Scion xB models from 2008 to 2014 equipped with the Toyota 2AZ-FE or 2AZ-FXE engines. Installation is straightforward, requiring no additional sealants or modifications to the engine block or cylinder head.

• Direct bolt-on replacement for factory gaskets.
• No cutting, drilling, or special tuning required.
• Compatible with both aluminum and cast iron engine components.

What's Included:

• One Cometic Multi-Layer Steel Cylinder Head Gasket with Viton-coated embossed outer layers

Ideal For:

This gasket is ideal for vehicle owners and mechanics seeking a high-quality, durable replacement for the cylinder head gasket on Scion tC and xB models. It is well-suited for:

• Daily drivers requiring reliable engine sealing
• Performance enthusiasts upgrading or rebuilding their engines
• Professional repair shops performing engine maintenance or rebuilds
• Applications involving aluminum-to-aluminum or aluminum-to-cast iron engine components

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.