Cometic Gasket Head Gasket

2013–2020 Subaru BRZ / 2017–2020 Toyota 86 FA20 Engine

C4588-052

Overview:

The Cometic MLS (Multi-Layer Steel) Right Side Head Gasket is engineered specifically for the Subaru FA20 engine found in the 2013 to 2020 Subaru BRZ and the 2017 to 2020 Toyota 86. Designed to provide a reliable and durable seal between the cylinder head and engine block, this gasket is essential for maintaining optimal engine compression and preventing leaks under demanding conditions. Whether you are performing an engine rebuild, upgrade, or repair, this gasket ensures a precise fit and long-lasting performance.

Ideal for enthusiasts and professional mechanics alike, the Cometic MLS gasket offers enhanced strength and durability compared to traditional gaskets, making it a trusted choice for both street and track applications.

Key Features:

Built to meet the rigorous demands of high-performance engines, the Cometic MLS Right Side Head Gasket incorporates advanced materials and coatings for superior sealing and longevity:

• Constructed from three to five layers of stainless steel for exceptional strength and durability
• Embossed outer layers coated with heat-resistant Viton rubber on both sides to ensure a secure seal
• Viton coating withstands temperatures up to 250°C (482°F), resisting heat degradation
• Designed to handle a variety of harsh sealing environments, load conditions, and surface finishes
• Precision engineered for the Subaru FA20D and Toyota 4U-GSE engines with an 89.5mm bore size
• Thickness of .052 inches optimized for reliable sealing and engine performance
• Right-hand side (RHS) specific design ensures perfect fitment and function

Construction & Design:

The Cometic MLS gasket features a multi-layer steel construction that provides superior resistance to warping and blowouts compared to conventional composite gaskets. Each layer of stainless steel contributes to the gasket’s ability to rebound and maintain a tight seal under extreme pressure and temperature fluctuations common in high-performance engines.

The embossed outer layers increase the gasket’s sealing surface area, while the Viton rubber coating on both sides enhances chemical resistance and prevents leaks caused by coolant, oil, or combustion gases. This combination of materials and design ensures the gasket maintains integrity over extended use, even in demanding driving conditions.

Installation & Fitment:

This gasket is designed as a direct replacement for the right side cylinder head gasket on Subaru BRZ models from 2013 through 2020 and Toyota 86 models from 2017 through 2020 equipped with the FA20 engine. Installation requires standard engine disassembly procedures and should be performed by a qualified technician to ensure proper torque specifications and surface preparation.

No modifications are necessary, as the gasket is engineered to OEM specifications for a precise fit and reliable sealing performance.

What's Included:

• One (1) Cometic MLS Right Side Head Gasket, .052 inch thickness

Ideal For:

This gasket is perfect for Subaru BRZ and Toyota 86 owners undertaking engine rebuilds, repairs, or performance upgrades who demand a high-quality, durable sealing solution. It is especially suited for enthusiasts who push their vehicles in spirited driving or track environments and require a gasket that can withstand elevated temperatures and pressures without failure.

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.