{"product_id":"sierra-18-60917-cylinder-cover-gasket-for-mercury-8-9-9-hp-outboards-replaces-27-803508017","title":"Sierra Cylinder Head Gasket 18-60917, Replaces 3V1010050M, Fits F8\/9.8 Outboards","description":"\u003cp\u003eThe Sierra 18-60917 is a cylinder head gasket engineered to seal the joint between the cylinder head and cylinder block on F8\/9.8 outboard engines. This gasket forms the critical seal that maintains compression and prevents coolant and combustion gases from leaking past the cylinder head mating surface, which is essential for proper engine performance and preventing overheating or power loss. It is designed as a direct fit replacement for the original equipment gasket, matching the dimensions and sealing points of the factory part so it installs in the same location using the same fasteners and torque sequence as the original.\u003c\/p\u003e\u003cp\u003eUsing the correct cylinder head gasket during a rebuild or head gasket replacement helps restore proper compression and prevents coolant intrusion into the cylinders, which can lead to costly engine damage if left unaddressed. The Sierra 18-60917 is intended for outboard owners and marine technicians performing head gasket service on F8\/9.8 outboard motors, and it cross-references directly to the original manufacturer part number for easy identification when ordering.\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 18-60917\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Cylinder Head Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e F8\/9.8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 3V1010050M\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eF8\/9.8\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3V1010050M\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-60917 gasket fit?\u003c\/strong\u003e The Sierra 18-60917 cylinder head gasket fits F8\/9.8 outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-60917 the same as OEM part 3V1010050M?\u003c\/strong\u003e Yes, the Sierra 18-60917 is a direct replacement for OEM part number 3V1010050M and seals the same cylinder head joint on F8\/9.8 outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of gasket is the 18-60917?\u003c\/strong\u003e It is a cylinder head gasket that seals the mating surface between the cylinder head and cylinder block on F8\/9.8 outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-60917 gasket weigh?\u003c\/strong\u003e The Sierra 18-60917 cylinder head gasket weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should the 18-60917 head gasket be replaced?\u003c\/strong\u003e Replace the Sierra 18-60917 whenever the cylinder head is removed for service or if there are signs of a compression leak or coolant intrusion on an F8\/9.8 outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-60917 require a specific torque sequence?\u003c\/strong\u003e The Sierra 18-60917 should be installed using the same fastener locations and torque sequence specified for the F8\/9.8 outboard's cylinder head.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-60917 be reused after removal?\u003c\/strong\u003e No, a cylinder head gasket like the Sierra 18-60917 should be replaced with a new one any time the cylinder head is removed, since it will not reseal properly once compressed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-60917 an OEM or aftermarket part?\u003c\/strong\u003e The Sierra 18-60917 is an aftermarket gasket manufactured to replace OEM part number 3V1010050M on F8\/9.8 outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other gaskets are commonly replaced along with the 18-60917?\u003c\/strong\u003e When servicing the cylinder head on an F8\/9.8 outboard, technicians often replace related gaskets at the same time as the Sierra 18-60917 cylinder head gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-60917 come as a single gasket?\u003c\/strong\u003e Yes, the Sierra 18-60917 is supplied as the cylinder head gasket for F8\/9.8 outboard engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988350283995,"sku":"SIE-18-60917","price":3.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-60917__51929.1558185596.500.750.jpg?v=1785329155","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-60917-cylinder-cover-gasket-for-mercury-8-9-9-hp-outboards-replaces-27-803508017","provider":"Good Vibes Marina","version":"1.0","type":"link"}