{"product_id":"sierra-18-6067-zinc-anode-for-mercruiser-alpha-one-gen-ii-stern-drives-1991-up-replaces-806189a1-97-806189","title":"Sierra 18-6067 Zinc Anode, Replaces 97-806189, for Mercruiser MR \u0026 Alpha One Drives","description":"\u003cp\u003eThe Sierra 18-6067 is a zinc sacrificial anode engineered for saltwater applications on Mercruiser MR and Alpha One stern drives, including Alpha One Generation II units from 1991 and up. Sacrificial anodes protect the more valuable metal components of a stern drive from galvanic corrosion by corroding first, so replacing worn anodes on schedule is essential to protecting the drive unit, gimbal housing, and other submerged metal parts from electrolysis damage.\u003c\/p\u003e\u003cp\u003eThis anode is made from zinc, which is specifically suited for saltwater use. Sierra also notes that magnesium anodes are intended for fresh water only applications, while aluminum anodes are suited to brackish or salt water environments, so choosing the correct material for your operating water is important for effective corrosion protection. Every Sierra anode is engineered to meet or exceed the quality of the original equipment part it replaces, giving boat owners a reliable, direct-fit corrosion protection solution.\u003c\/p\u003e\u003cp\u003eRegular inspection and replacement of anodes is a core part of stern drive maintenance. When an anode has corroded away by roughly half its original size, it should be replaced to maintain proper cathodic protection for the rest of the drive system.\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 18-6067\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Anode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Zinc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Water Type:\u003c\/strong\u003e Saltwater only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.21 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999976789\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMR and Alpha One drives\u003c\/li\u003e\n\u003cli\u003eAlpha One, Generation II (1991 and up)\u003c\/li\u003e\n\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 is the Sierra 18-6067 used for?\u003c\/strong\u003e The Sierra 18-6067 is a zinc sacrificial anode that protects Mercruiser MR and Alpha One stern drives from galvanic corrosion by corroding in place of the drive's metal components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-6067 anode made of zinc, magnesium, or aluminum?\u003c\/strong\u003e The 18-6067 is a zinc anode, which is intended for saltwater only applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the Sierra 18-6067 in fresh water?\u003c\/strong\u003e No. Zinc anodes such as the 18-6067 are for saltwater only; magnesium anodes are the correct choice for fresh water use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat about brackish water?\u003c\/strong\u003e For brackish or salt water environments, an aluminum anode is the recommended material rather than the zinc 18-6067.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat drives does the 18-6067 anode fit?\u003c\/strong\u003e The 18-6067 fits Mercruiser MR and Alpha One drives, including Alpha One Generation II units from 1991 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-6067 replace?\u003c\/strong\u003e The Sierra 18-6067 replaces OEM numbers 97-806189, 806189A1, and 97-806189Q1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-6067 anode weigh?\u003c\/strong\u003e The 18-6067 anode weighs 0.21 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6067 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-6067 is a Sierra aftermarket anode engineered to meet or exceed the quality of the original equipment anode it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know when to replace this anode?\u003c\/strong\u003e An anode like the 18-6067 should be replaced once it has corroded away by roughly half its original mass, since a badly depleted anode can no longer protect the drive's other metal components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-6067?\u003c\/strong\u003e Ordering the Sierra 18-6067 gets you one zinc anode sized for Mercruiser MR and Alpha One stern drives.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988349759707,"sku":"SIE-18-6067","price":12.57,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-6067_lg__00340.1558128564.500.750.jpg?v=1785188474","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-6067-zinc-anode-for-mercruiser-alpha-one-gen-ii-stern-drives-1991-up-replaces-806189a1-97-806189","provider":"Good Vibes Marina","version":"1.0","type":"link"}