{"product_id":"athena-p400485600212-top-end-gasket-kit-2019-2025-yamaha-yz250f-wr250f","title":"Athena P400485600212 Top-End Gasket Kit 2019-2025 Yamaha YZ250F WR250F","description":"\u003ch3\u003ePro-Level Precision: The Ultimate Engine Refresh for Your Yamaha YZ250F\u003c\/h3\u003e\n\u003cp\u003eWhen it's time to freshen up your engine mid-season or ahead of a big race, you need a seal you can trust. The [Athena P400485600212 Top-End Gasket Kit](http:\/\/googleusercontent.com\/shopping_content\/1_link) is a \u003cstrong\u003eRacing Performance\u003c\/strong\u003e essential specifically designed for pro, semi-pro, and amateur riders who demand precision. At \u003cstrong\u003eMoto-House MX\u003c\/strong\u003e, we know that maintaining optimal compression is the key to staying on the podium, and this kit provides the \u003cstrong\u003eHeavy Duty\u003c\/strong\u003e reliability required for high-stress motocross and off-road environments.\u003c\/p\u003e\n\u003cp\u003eThis kit features a top-of-the-line \u003cstrong\u003eMLSS (Multi-Layer Steel) head gasket\u003c\/strong\u003e and includes two or more premium base gaskets of varying thicknesses. This unique setup gives you the power to \u003cstrong\u003eoptimize engine compression ratios\u003c\/strong\u003e, allowing you to choose between standard pump gas or high-octane race gas. Manufactured in Italy using state-of-the-art computer-controlled facilities, these \u003cstrong\u003eOEM Replacement\u003c\/strong\u003e gaskets meet or exceed factory specifications to ensure a leak-free, high-performance seal every time you rebuild.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Athena P400485600212 Top-End Gasket Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTunable Compression:\u003c\/strong\u003e Includes multiple base gaskets of different thicknesses to customize your engine's compression ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium MLSS Head Gasket:\u003c\/strong\u003e High-end Multi-Layer Steel construction ensures a superior seal under extreme thermal and mechanical stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace-Ready Design:\u003c\/strong\u003e Perfect for riders who perform frequent top-end maintenance to keep their engine at peak performance levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItalian Engineering:\u003c\/strong\u003e Developed and manufactured in Italy by Athena, a leading OEM gasket supplier for over 60% of European manufacturers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-Cut Precision:\u003c\/strong\u003e Each gasket is laser-cut for a perfect fit, compensating for surface irregularities in the cylinder and head.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is included in this Top-End Gasket Kit?\u003c\/strong\u003e\u003cbr\u003eThis kit typically includes the head gasket, base gaskets of multiple thicknesses, and other essential seals for the top end. However, it does NOT include valve stem seals, rubber parts, shims, or other fiber gaskets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are there multiple base gaskets in the kit?\u003c\/strong\u003e\u003cbr\u003eThe different thicknesses allow you to adjust the \"squish\" and compression ratio of your engine. Thinner gaskets can increase compression for race gas, while thicker ones maintain stock parameters for pump gas.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this kit meet OEM standards?\u003c\/strong\u003e\u003cbr\u003eYes, Athena gaskets are engineered to meet or exceed OEM specifications. Athena actually provides the original gaskets for many major European motorcycle brands.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Your Bike\u003c\/strong\u003e and keep your Yamaha performing like new with Athena at Moto-House MX.\u003c\/p\u003e\n\u003cp\u003eMoto-House MX – \u003cstrong\u003eChoice of Champions\u003c\/strong\u003e – is located in Clermont\/Montverde, FL. The best motocross shop in Central Florida.\u003c\/p\u003e","brand":"ATHENA","offers":[{"title":"Default Title","offer_id":44174213382227,"sku":"P400485600212","price":69.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/264830.png?v=1772933137","url":"https:\/\/motohousemx.com\/products\/athena-p400485600212-top-end-gasket-kit-2019-2025-yamaha-yz250f-wr250f","provider":"Moto-House MX","version":"1.0","type":"link"}