{"product_id":"sierra-18-6024-zinc-cavitation-anode-replaces-omc-evinrude-johnson-436745-393023-outboard-gearcase-corrosion-protection","title":"Sierra 18-6024 Zinc Anode - Replaces 393023, 436745 - For Outboard Gearcases (1982-87)","description":"\u003cp\u003eThe Sierra 18-6024 is a zinc sacrificial anode engineered for use on outboard gearcases, protecting underwater metal components from galvanic corrosion. Zinc anodes work by corroding preferentially to the surrounding metal, drawing the electrochemical reaction away from the gearcase and other submerged hardware so those parts last longer in saltwater and freshwater use. This anode is a direct replacement for the OEM 393023 and 436745 part numbers used on applicable gearcases from the 1982-87 model years.\u003c\/p\u003e\u003cp\u003eInstallation follows the same routine as other outboard sacrificial anodes: the old, corroded anode is removed from the gearcase and replaced with the new zinc unit as part of regular maintenance. Because anode wear indicates the level of corrosion protection remaining, it should be inspected periodically and replaced once it has worn down significantly, well before it is fully consumed.\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 18-6024\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\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Preventing corrosion in outboard motor gearcases and underwater metal components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Engine Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.45 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999563958\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 393023, 436745\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFor use on gearcases, 1982-87\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e393023\u003c\/li\u003e\n\u003cli\u003e436745\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-6024 anode used for?\u003c\/strong\u003e The Sierra 18-6024 is a zinc sacrificial anode used on outboard gearcases to protect the gearcase and surrounding underwater metal components from galvanic corrosion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-6024 anode made from?\u003c\/strong\u003e It is made from zinc, the standard sacrificial anode material for preventing corrosion on submerged outboard gearcase components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-6024 replace?\u003c\/strong\u003e The 18-6024 replaces OEM part numbers 393023 and 436745.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years is this anode compatible with?\u003c\/strong\u003e The Sierra 18-6024 is intended for use on gearcases from the 1982-87 model years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-6024 anode weigh?\u003c\/strong\u003e The Sierra 18-6024 anode weighs 0.45 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-6024 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-6024 is a Sierra-brand replacement anode, built to meet or exceed the specification of the original OEM 393023 and 436745 gearcase anodes it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-6024 anode?\u003c\/strong\u003e The Sierra 18-6024 anode is white in color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know when to replace a gearcase anode like the 18-6024?\u003c\/strong\u003e A zinc anode such as the 18-6024 should be replaced once it has visibly worn down, since it works by corroding in place of the gearcase and other underwater metal parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the Sierra 18-6024?\u003c\/strong\u003e Each order includes one Sierra 18-6024 zinc anode.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the 18-6024 anode mounted?\u003c\/strong\u003e The 18-6024 is an engine-mount anode designed to install directly on the outboard gearcase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-6024 protect against saltwater corrosion?\u003c\/strong\u003e Yes, as a zinc sacrificial anode, the 18-6024 is designed to corrode preferentially and protect the gearcase and nearby metal components from galvanic corrosion in marine use.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988349202651,"sku":"SIE-18-6024","price":16.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-6024_lg__20220.1558129676.500.750.jpg?v=1785188076","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-6024-zinc-cavitation-anode-replaces-omc-evinrude-johnson-436745-393023-outboard-gearcase-corrosion-protection","provider":"Good Vibes Marina","version":"1.0","type":"link"}