{"product_id":"subaru-oem-master-gasket-kit-2018-sti-10105ac190","title":"Subaru OEM Master Gasket Kit (2018+ STI) | 10105AC190","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Genuine Subaru OEM Master Gasket Kit (Part #10105AC190) is the factory-spec complete gasket set engineered specifically for the 2018+ Subaru WRX STI. Designed for high-performance EJ257 engine rebuilds, this all-inclusive kit ensures a perfect factory seal every time. Whether you're refreshing a built motor or doing a top-end rebuild, this OEM kit eliminates the guesswork of sourcing individual gaskets and guarantees exact fitment right from Subaru.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Subaru OEM Quality\u003c\/strong\u003e — Factory-manufactured to the exact tolerances and material specifications used on the assembly line, ensuring long-term reliability and sealing performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Master Kit\u003c\/strong\u003e — Includes every gasket, seal, and o-ring required for a full engine overhaul, eliminating the need to source individual components separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact-Fit Guarantee\u003c\/strong\u003e — Engineered exclusively for the 2018+ WRX STI EJ257 engine; no trimming, adapting, or modification required for installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance Application\u003c\/strong\u003e — Built to withstand the elevated temperatures, pressures, and boost levels characteristic of the STI's turbocharged EJ257 powerplant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Warranty Eligible\u003c\/strong\u003e — As a Genuine Subaru OEM part, this kit is covered under Subaru's OEM parts warranty for added peace of mind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Layer Steel (MLS) Head Gaskets\u003c\/strong\u003e — Where applicable, utilizes the same MLS construction found in factory builds for superior sealing under high-compression and forced-induction conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHead gasket(s)\u003c\/li\u003e\n\u003cli\u003eExhaust manifold gasket(s)\u003c\/li\u003e\n\u003cli\u003eIntake manifold gasket(s)\u003c\/li\u003e\n\u003cli\u003eValve cover gasket(s)\u003c\/li\u003e\n\u003cli\u003eOil pan gasket\u003c\/li\u003e\n\u003cli\u003eCoolant and oil seals\u003c\/li\u003e\n\u003cli\u003eThrottle body and miscellaneous o-rings\u003c\/li\u003e\n\u003cli\u003eAll ancillary engine gaskets required for complete overhaul\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSubaru Part Number\u003c\/th\u003e\n\u003ctd\u003e10105AC190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Type\u003c\/th\u003e\n\u003ctd\u003eMaster Engine Gasket Kit (Full Overhaul)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Application\u003c\/th\u003e\n\u003ctd\u003eEJ257 (2.5L Turbocharged Boxer 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOEM \/ Aftermarket\u003c\/th\u003e\n\u003ctd\u003eGenuine Subaru OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis Genuine Subaru OEM Master Gasket Kit is specifically designed for the following vehicles:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003ctd\u003eAll Trims\u003c\/td\u003e\n\u003ctd\u003eEJ257 2.5L Turbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003ctd\u003eAll Trims\u003c\/td\u003e\n\u003ctd\u003eEJ257 2.5L Turbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003ctd\u003eAll Trims\u003c\/td\u003e\n\u003ctd\u003eEJ257 2.5L Turbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003ctd\u003eAll Trims\u003c\/td\u003e\n\u003ctd\u003eEJ257 2.5L Turbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eAlways verify your vehicle's VIN and engine code before ordering. Part number \u003cstrong\u003e10105AC190\u003c\/strong\u003e applies to 2018+ STI applications — confirm fitment if your vehicle falls outside this range.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eThis master gasket kit is intended for experienced engine builders or professional installation by a qualified Subaru technician. A complete engine disassembly is required to replace all gaskets in this kit. Proper torque specifications (per Subaru factory service manual), surface preparation, and coolant\/oil refills are essential for a successful rebuild. It is strongly recommended to follow the Subaru EJ257 engine rebuild procedure outlined in the official service manual. Professional installation is advised.\u003c\/p\u003e","brand":"Subaru OEM","offers":[{"title":"Default Title","offer_id":43167483625568,"sku":"sub10105AC190","price":462.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/Subaru-OEM-Master-Gasket-Kit-2018-STI-10105AC190.jpg?v=1791629428","url":"https:\/\/www.importimageracing.com\/products\/subaru-oem-master-gasket-kit-2018-sti-10105ac190","provider":"Import Image Racing","version":"1.0","type":"link"}