{"product_id":"sierra-18-6114-magnesium-anode-for-mercruiser-alpha-one-gen-ii-stern-drives-1991-up-replaces-806189a1-97-806189","title":"Sierra 18-6114 Magnesium Anode, Replaces 806189A1, Fits MerCruiser Alpha One Gen II (1991 and Up)","description":"\u003cp\u003eThe Sierra 18-6114 is a magnesium sacrificial anode built for MerCruiser stern drives, fitting Alpha One, Gen II applications from 1991 and up. Sacrificial anodes are a core part of a stern drive's corrosion protection system: the anode corrodes preferentially in place of the drive's aluminum and metal components, protecting the more expensive parts of the outdrive from galvanic corrosion. This anode is made of magnesium, which is formulated specifically for fresh water use; magnesium anodes are not intended for saltwater or brackish water service, where zinc or aluminum anodes are the correct choice instead.\u003c\/p\u003e\u003cp\u003eThe 18-6114 measures 0.39 x 0.39 x 0.39 inches and weighs 0.06 pounds, a compact size consistent with its role as a wear item that is replaced on a regular maintenance schedule as it sacrifices itself to corrosion. It is a direct cross-reference replacement for the Mercury Marine 806189A1, 97-806189, and 97-806189Q1 anodes used on Alpha One, Gen II drives (1991 and up), so boat owners can order it by either the Sierra number or the original Mercury numbers. Sierra parts are built to meet or exceed the original equipment part they replace, making this anode a straightforward like-for-like maintenance item for MerCruiser Alpha One Gen II owners running in fresh water.\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 18-6114\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Magnesium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Application:\u003c\/strong\u003e Fresh water only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Alpha One, Gen II (1991 and up)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282103583\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 97-806189, 806189A1, 97-806189Q1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMerCruiser Alpha One, Gen II (1991 and up)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e97-806189\u003c\/li\u003e\n\u003cli\u003e806189A1\u003c\/li\u003e\n\u003cli\u003e97-806189Q1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-6114 anode fit?\u003c\/strong\u003e The 18-6114 fits MerCruiser Alpha One, Gen II stern drives from 1991 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-6114 anode made of zinc or magnesium?\u003c\/strong\u003e It is made of magnesium, which is formulated for fresh water use rather than saltwater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this magnesium anode in saltwater?\u003c\/strong\u003e No, magnesium anodes like the 18-6114 are intended for fresh water only; saltwater applications call for a zinc anode instead, and brackish or salt water environments call for an aluminum anode.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-6114 replace?\u003c\/strong\u003e It replaces Mercury Marine numbers 97-806189, 806189A1, and 97-806189Q1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-6114 anode weigh?\u003c\/strong\u003e The Sierra 18-6114 anode weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-6114 anode?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6114 a genuine equivalent to the Mercury Marine anode?\u003c\/strong\u003e Yes, the 18-6114 is built to meet or exceed the original equipment part it replaces, functioning as a direct equivalent to the Mercury Marine 806189A1 anode.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does a MerCruiser stern drive need an anode like the 18-6114?\u003c\/strong\u003e The anode sacrifices itself to galvanic corrosion in place of the more expensive metal components on the Alpha One, Gen II stern drive, which is why it is a wear item replaced periodically.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-6114 work on Alpha One drives built before 1991?\u003c\/strong\u003e The 18-6114 is specified for Alpha One, Gen II drives from 1991 and up; earlier applications are not covered by this fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the difference between the 18-6114 and an aluminum or zinc anode for the same drive?\u003c\/strong\u003e The 18-6114 is magnesium for fresh water use, while a zinc version is used in saltwater and an aluminum version is used in brackish or salt water environments; the correct material depends on where the boat operates.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988350677211,"sku":"SIE-18-6114","price":13.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-6114_lg__47667.1558130704.500.750.jpg?v=1785188043","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-6114-magnesium-anode-for-mercruiser-alpha-one-gen-ii-stern-drives-1991-up-replaces-806189a1-97-806189","provider":"Good Vibes Marina","version":"1.0","type":"link"}