{"product_id":"cometic-subaru-fa20d-toyota-4u-gse-040in-mlx-cylinder-head-gasket-89-5mm-bore-rhs","title":"Cometic Gasket Cylinder Head Gasket MLS: Subaru BRZ (13-20) \u0026 Toyota 86 (17-20)","description":"\u003ch3\u003eCometic Gasket Cylinder Head Gasket\u003c\/h3\u003e\u003cp\u003e2013–2020 Subaru BRZ \/ 2017–2020 Toyota 86 FA20D \/ 4U-GSE Engine\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eC4588-040\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Cometic Cylinder Head Gasket is engineered specifically for the Subaru BRZ (2013–2020) and Toyota 86 (2017–2020) models equipped with the FA20D and 4U-GSE engines. Designed to provide a reliable and durable seal between the cylinder head and engine block, this gasket ensures optimal engine performance and longevity. Ideal for enthusiasts and professionals seeking a high-quality replacement or upgrade, the Cometic MLS gasket delivers superior sealing under demanding conditions.\u003c\/p\u003e\u003cp\u003eWhether you are performing routine maintenance or upgrading your engine for enhanced performance, this gasket offers the strength and resilience needed to withstand the rigors of daily driving and spirited use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Cometic Cylinder Head Gasket incorporates advanced materials and design features to meet the exacting standards of modern performance engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMulti-Layer Steel (MLS) construction with three to five layers of stainless steel for enhanced strength and durability\u003c\/li\u003e\n\u003cli\u003eEmbossed outer layers coated with heat-resistant Viton rubber on both sides for superior sealing\u003c\/li\u003e\n\u003cli\u003eViton coating rated to withstand temperatures up to 250°C (482°F), ensuring reliability under high-heat conditions\u003c\/li\u003e\n\u003cli\u003eDesigned to resist corrosion and maintain rebound capability for long-lasting performance\u003c\/li\u003e\n\u003cli\u003ePrecision engineered to fit the 89.5mm bore size of the Subaru FA20D and Toyota 4U-GSE engines\u003c\/li\u003e\n\u003cli\u003eThickness of 0.040 inches, optimized for proper compression and sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with a variety of surface finishes and load conditions, providing versatility in installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Cometic MLS gasket is constructed from multiple layers of high-grade stainless steel, chosen for its exceptional strength and corrosion resistance. The layered design allows the gasket to flex and rebound, maintaining a tight seal even under thermal expansion and contraction cycles common in high-performance engines.\u003c\/p\u003e\u003cp\u003eEach outer layer is embossed to enhance sealing contact and coated with Viton rubber, a synthetic fluoropolymer elastomer known for its excellent heat resistance and chemical stability. This coating ensures the gasket can withstand harsh sealing environments, including exposure to coolant, oil, and combustion gases, without degradation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis cylinder head gasket is a direct fit replacement for Subaru BRZ models from 2013 through 2020 and Toyota 86 models from 2017 through 2020, specifically for engines with an 89.5mm bore size. Installation requires standard head gasket replacement procedures and should be performed by a qualified technician to ensure proper torque specifications and surface preparation are met.\u003c\/p\u003e\u003cp\u003eNo modifications are necessary for fitment, making it a straightforward upgrade or replacement part for these vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eOne (1) Cometic MLS Cylinder Head Gasket, 0.040 inch thickness\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis gasket is ideal for Subaru BRZ and Toyota 86 owners seeking a durable, high-quality replacement part that maintains engine integrity under both daily driving and performance conditions. It is also well-suited for tuners and enthusiasts who demand reliable sealing for modified or high-output versions of the FA20D and 4U-GSE engines.\u003c\/p\u003e","brand":"Cometic Gasket","offers":[{"title":"Default Title","offer_id":49972942700840,"sku":"C4588-040","price":101.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9744\/0808\/files\/0003787_ec4e0fd3abedfa0582bfd49dc91b89b9_22c23b95-5e3a-493f-8760-73ce29e174d5.webp?v=1771647161","url":"https:\/\/fastscions.com\/products\/cometic-subaru-fa20d-toyota-4u-gse-040in-mlx-cylinder-head-gasket-89-5mm-bore-rhs","provider":"FastScions","version":"1.0","type":"link"}