{"product_id":"sierra-18-6249-zinc-anode-for-mercury-mariner-transom-mount-bracket-150-efi-175-200-efi-replaces-43396a2","title":"Sierra 18-6249 Zinc Anode for Mercury\/Mariner 175HP\/150EFI\/200EFI Transom Mount Bracket, Replaces 43396A2","description":"\u003cp\u003eThe Sierra 18-6249 is a zinc sacrificial anode engineered for the transom mount bracket on Mercury\/Mariner outboard motors. Sacrificial anodes protect the more critical metal components of an outboard's lower unit and mounting hardware from galvanic corrosion by corroding themselves first, giving the surrounding aluminum and steel parts a longer service life in saltwater and freshwater environments alike. This anode is specifically designed for transom mount bracket applications on 175HP, 150EFI, and 200EFI Mercury\/Mariner outboards with serial numbers OG303046 and up.\u003c\/p\u003e\u003cp\u003eConstructed from zinc, the 18-6249 is the standard corrosion-protection alloy choice for saltwater use, offering reliable, consistent sacrificial performance over the anode's service life. It is a direct-fit replacement for the OEM Mercury Marine anode it supersedes, and it should be inspected periodically and replaced once it has corroded to roughly half its original mass to maintain effective protection for the transom mount bracket assembly.\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 18-6249\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Zinc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.37 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercury\/Mariner 175HP\/150EFI\/200EFI (S\/N OG303046 \u0026amp; Up)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Horsepower:\u003c\/strong\u003e 200 Horsepower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282103637\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mariner transom mount bracket\u003c\/li\u003e\n\u003cli\u003e175HP\u003c\/li\u003e\n\u003cli\u003e150EFI\u003c\/li\u003e\n\u003cli\u003e200EFI\u003c\/li\u003e\n\u003cli\u003eS\/N OG303046 \u0026amp; Up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e43396A2\u003c\/li\u003e\n\u003cli\u003e818298A1\u003c\/li\u003e\n\u003cli\u003e818298Q1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-6249 anode fit?\u003c\/strong\u003e The Sierra 18-6249 is designed for the transom mount bracket on Mercury\/Mariner outboards rated 175HP, 150EFI, and 200EFI with serial numbers OG303046 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-6249 anode made of?\u003c\/strong\u003e It is made of zinc, the standard sacrificial anode alloy used to protect outboard metal components from galvanic corrosion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the Sierra 18-6249 replace?\u003c\/strong\u003e It replaces Mercury Marine part numbers 43396A2, 818298A1, and 818298Q1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-6249 anode weigh?\u003c\/strong\u003e The Sierra 18-6249 weighs 1.37 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6249 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-6249 is manufactured by Sierra as a direct replacement for the corresponding Mercury Marine transom mount bracket anode, sold under Sierra's own part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere on the outboard does this anode install?\u003c\/strong\u003e The 18-6249 mounts on the transom mount bracket of the outboard, not on the lower unit or trim tab.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know when to replace this anode?\u003c\/strong\u003e A zinc anode like the 18-6249 should be replaced once it has corroded to about half of its original size, since a heavily depleted anode can no longer adequately protect the surrounding metal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-6249 come in a different material option?\u003c\/strong\u003e Sierra offers this transom mount bracket anode in zinc under part number 18-6249; an aluminum version is sold under a separate part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-6249 fit outboards below serial number OG303046?\u003c\/strong\u003e This anode is specified for Mercury\/Mariner 175HP\/150EFI\/200EFI units with serial numbers OG303046 and up; earlier serial numbers are not covered by this listing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6249 suitable for saltwater use?\u003c\/strong\u003e Yes, zinc anodes such as the 18-6249 are the recommended sacrificial anode material for saltwater applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988355821787,"sku":"SIE-18-6249","price":20.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-6249_lg__87629.1558128646.500.750.jpg?v=1785188654","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-6249-zinc-anode-for-mercury-mariner-transom-mount-bracket-150-efi-175-200-efi-replaces-43396a2","provider":"Good Vibes Marina","version":"1.0","type":"link"}