{"product_id":"sierra-18-99060-head-gasket-for-yamaha-40-50-hp-outboard-replaces-63d-11193-a0","title":"Sierra 18-99060 Head Gasket - Replaces Yamaha 63D-11181-A0-00 for 40\/50\/C40\/C50\/P40\/P50 Outboards","description":"\u003cp\u003eThe Sierra 18-99060 Head Gasket is a cylinder head gasket engineered as a direct replacement for Yamaha outboard engines. It seals the mating surface between the cylinder head and the powerhead block, maintaining compression and preventing coolant or combustion leakage that can lead to overheating or loss of power. Each Sierra gasket is manufactured to meet or exceed the specification of the original equipment part it replaces, making it a reliable choice for engine rebuilds, head removal service, or routine maintenance on covered Yamaha outboard models.\u003c\/p\u003e\u003cp\u003eThis head gasket fits Yamaha 40 hp (1995-2006), 50 hp (1995-2009), C40 (1998-2003), C50 (1998-2001), P40 (1998), and P50 (1995-1996) outboard engines, and is interchangeable with Yamaha Outboard part numbers 63D-11181-A0-00, 63D-11181-A1-00, and 63D-11181-A2-00. The package includes one head gasket. As with any head gasket installation, proper torque sequence and specification should be followed to ensure a lasting seal.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-99060\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Head Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Gasket, Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.24 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282293758\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYamaha 40 hp (1995-2006)\u003c\/li\u003e\n\u003cli\u003eYamaha 50 hp (1995-2009)\u003c\/li\u003e\n\u003cli\u003eYamaha C40 (1998-2003)\u003c\/li\u003e\n\u003cli\u003eYamaha C50 (1998-2001)\u003c\/li\u003e\n\u003cli\u003eYamaha P40 (1998)\u003c\/li\u003e\n\u003cli\u003eYamaha P50 (1995-1996)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e63D-11181-A0-00\u003c\/li\u003e\n\u003cli\u003e63D-11181-A1-00\u003c\/li\u003e\n\u003cli\u003e63D-11181-A2-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99060 head gasket fit?\u003c\/strong\u003e It fits Yamaha 40 hp (1995-2006), 50 hp (1995-2009), C40 (1998-2003), C50 (1998-2001), P40 (1998), and P50 (1995-1996) outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-99060 gasket a genuine Yamaha part or aftermarket?\u003c\/strong\u003e The 18-99060 is a Sierra-manufactured head gasket built to meet or exceed the original equipment specification, offered as an aftermarket replacement rather than a Yamaha-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Yamaha OEM part numbers does 18-99060 replace?\u003c\/strong\u003e Sierra 18-99060 is interchangeable with Yamaha Outboard 63D-11181-A0-00, 63D-11181-A1-00, and 63D-11181-A2-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the head gasket weigh?\u003c\/strong\u003e The Sierra 18-99060 head gasket weighs 0.24 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in one package?\u003c\/strong\u003e One 18-99060 head gasket is included per unit, listed as a 1 Count package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-99060 fit the Yamaha 50 hp made in every year?\u003c\/strong\u003e It is designated for the Yamaha 50 hp covering the 1995-2009 range; confirm your engine falls within that span before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this gasket work on a Yamaha C40 or C50?\u003c\/strong\u003e Yes, the 18-99060 head gasket covers the Yamaha C40 (1998-2003) and C50 (1998-2001) models in addition to the standard 40 and 50 hp engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a warranty included with the 18-99060 head gasket?\u003c\/strong\u003e Sierra parts, including the 18-99060 head gasket, are covered under Sierra's standard customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with part number 18-99060?\u003c\/strong\u003e The package contains the head gasket itself; no additional hardware or seals are listed as included components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the P40 or P50 Yamaha outboard use this same gasket?\u003c\/strong\u003e Yes, Sierra 18-99060 is fitted for the Yamaha P40 (1998) and P50 (1995-1996) models as well.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988438397147,"sku":"SIE-18-99060","price":45.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-99060__24574.1558189134.500.750.jpg?v=1785188176","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-99060-head-gasket-for-yamaha-40-50-hp-outboard-replaces-63d-11193-a0","provider":"Good Vibes Marina","version":"1.0","type":"link"}