{"product_id":"cometic-c7905-est-top-end-gasket-kit-for-gasgas-and-yamaha-77-mm","title":"Cometic Top End Gasket Kit for GasGas and Yamaha, 77 mm (C7905-EST)","description":"\u003cp\u003eThe Cometic C7905-EST Top End Gasket Kit provides the essential gaskets and seals needed for reliable top-end reassembly on compatible GasGas and Yamaha engines. This complete kit includes the correct base gasket, head gasket, cylinder O-rings, rocker gasket, and other top-end-specific O-rings or seals required for removal and installation. Designed for 4-stroke applications, it supports today’s high-output naturally aspirated and boosted machines with dependable sealing performance.\u003cbr\u003eThe Cometic C7905-EST kit features Extreme Sealing Technology (EST), combining embossed stainless steel head, base, and rocker gaskets with a proprietary rubber coating. The multi-layer steel head gasket promotes even torque distribution across the sealing surface, helping reduce bore distortion and improve piston ring sealing. Its construction is engineered to withstand the high cylinder pressures and temperatures produced by high-horsepower engines.\u003cbr\u003eThe head gasket material helps draw heat away from the combustion ring and distribute it evenly across the gasket surface. This helps minimize hot spots and reduce the risk of gasket failure during demanding operation. With its application-specific components and performance-focused materials, the Cometic C7905-EST is a practical choice for professional engine builders, powersports technicians, and riders completing a top-end service. Made in the USA.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eComplete top-end gasket kit for compatible GasGas and Yamaha 4-stroke engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes base gasket, head gasket, cylinder O-rings, rocker gasket, and required top-end seals\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003e77 mm application-specific gasket design\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMLS head gasket promotes even torque loading across the sealing surface\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHelps reduce bore distortion and support improved piston ring sealing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEST construction uses embossed stainless steel gaskets with proprietary rubber coating\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for high-output naturally aspirated and boosted engines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHead gasket material helps dissipate heat evenly and reduce hot spots\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMade in the USA\u003c\/li\u003e\u003c\/ul\u003e\r\n\u003cp\u003eShips from Parts Unlimited.\u003c\/p\u003e","brand":"Cometic","offers":[{"title":"Default Title","offer_id":60117768405278,"sku":"C7905-EST","price":83.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1091\/7884\/7518\/files\/82114.png?v=1791112673","url":"https:\/\/shoplepier.com\/products\/cometic-c7905-est-top-end-gasket-kit-for-gasgas-and-yamaha-77-mm","provider":"LEPIER POWERSPORTS","version":"1.0","type":"link"}