Cometic MLS Cylinder Head Gasket

2005–2010 Scion tC / 2008–2015 Scion xB2 2.4L 2AZFE Engine

C4507-027

Overview:

The Cometic MLS Cylinder Head Gasket is engineered specifically for the 2.4L 2AZFE engine found in the 2005–2010 Scion tC and 2008–2015 Scion xB2 models. Designed to provide superior sealing performance, this multi-layer steel (MLS) gasket is ideal for high-output engines that demand reliability and durability under extreme conditions. Whether you are rebuilding your engine or upgrading for enhanced performance, the Cometic MLS gasket ensures a precise and lasting seal between the cylinder head and engine block.

Built to withstand the stresses of modern engines, this gasket eliminates the need for additional sealants and re-torquing, making it a trusted choice for enthusiasts and professional mechanics alike. Its robust construction helps maintain engine integrity, reduce bore distortion, and improve overall engine longevity.

Key Features:

Cometic’s MLS Cylinder Head Gasket incorporates advanced design and materials to meet the rigorous demands of today’s performance engines. Key features include:

• Maximum sealing performance for high-output 2AZFE engines without the need for sealants
• Ideal compatibility with aluminum heads to aluminum blocks and aluminum heads to cast iron blocks
• Embossed multi-layer steel design promotes even clamp load distribution, reducing bore distortion
• Constructed from multiple layers of stainless steel for increased strength and corrosion resistance
• Viton coating on both sides for heat resistance up to 250°C (482°F) and enhanced sealing under harsh conditions
• Available in three thickness options: 0.027", 0.040", and 0.051" to accommodate various engine rebuild requirements
• No need for re-torquing after installation, saving time and ensuring consistent performance
• Designed to withstand the shearing forces between dissimilar metals in engine assembly

Construction & Design:

The Cometic MLS gasket is crafted from multiple layers of high-grade stainless steel, providing exceptional durability and the ability to rebound under pressure. The outer layers are embossed and coated with Viton, a fluorocarbon elastomer known for its excellent heat resistance and chemical stability. This coating ensures a reliable seal even in extreme thermal and mechanical environments.

The center shim layer is uncoated stainless steel, allowing for precise thickness variations to suit different engine rebuild specifications. This multi-layer construction not only enhances sealing integrity but also helps to evenly distribute clamping forces, minimizing bore distortion and improving engine reliability.

Installation & Fitment:

The Cometic MLS Cylinder Head Gasket is designed as a direct fit replacement for the 2.4L 2AZFE engine in the Scion tC (2005–2010) and Scion xB2 (2008–2015). Installation requires standard head gasket replacement procedures with no special modifications or sealants needed. The gasket’s design eliminates the need for re-torquing, simplifying the installation process and ensuring a consistent, long-lasting seal.

What's Included:

• One Cometic MLS Cylinder Head Gasket (Part # C4507-027)
• Available thickness options: 0.027", 0.040", or 0.051" (please select accordingly)

Ideal For:

This gasket is ideal for Scion tC and xB2 owners performing engine rebuilds, upgrades, or repairs who require a reliable, high-performance sealing solution. It is especially suited for enthusiasts and professionals seeking enhanced durability and sealing integrity in high-output or modified 2AZFE engines. The Cometic MLS gasket is also a preferred choice for those looking to maintain OEM-level reliability with improved materials and design.