{"product_id":"martyr-cmv18-zinc-large-ring-anode-volvo-penta-875815-3-194-cmv18","title":"Martyr CMV18 Zinc Large Ring Anode – Volvo Penta | Replaces OEM 875815-3 | Saltwater","description":"\u003ch2\u003eMartyr CMV18 Zinc Large Ring Anode – Volvo Penta\u003c\/h2\u003e\n\u003cp\u003eA direct-replacement zinc large ring anode for Volvo Penta sterndrives and outdrives. This anode provides sacrificial galvanic protection for the drive unit’s lower section in saltwater. Zinc is the correct alloy for full saltwater use with consistent high salinity.\u003c\/p\u003e\n\u003cp\u003eReplaces OEM part number \u003cstrong\u003e875815-3\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta sterndrive and outdrive units requiring the large ring anode (OEM 875815-3)\u003c\/li\u003e\n\u003cli\u003eSaltwater use\u003c\/li\u003e\n\u003cli\u003eConfirm OEM part number against your drive’s service manual before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CMV18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 194-CMV18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces OEM:\u003c\/strong\u003e Volvo Penta 875815-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Military-grade zinc alloy (sacrificial)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Large ring anode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Saltwater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 753 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAlso Available In\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11062243131428\"\u003eCMV18 – Aluminum\u003c\/a\u003e (saltwater \u0026amp; brackish)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/11062243328036\"\u003eCMV18 – Magnesium\u003c\/a\u003e (freshwater)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Volvo Penta Anodes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11141290131492\"\u003eMartyr V17 Zinc Anode – Volvo Penta\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11141288591396\"\u003eMartyr 875812 Zinc Anode – Volvo Penta\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11062239985700\"\u003eMartyr CM875821Z Zinc Duo Prop Ring Anode – Volvo Penta DuoProp\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11062239821860\"\u003eMartyr CM875821A Aluminum Duo Prop Ring Anode – Volvo Penta DuoProp\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11062239887396\"\u003eMartyr CM875821M Magnesium Duo Prop Ring Anode – Volvo Penta DuoProp\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe CMV18 is the large ring anode for Volvo Penta drives — one of the higher-mass anodes in the Volvo Penta lineup and an important one to replace on schedule. Ring anodes on sterndrive units are often overlooked at haulout because they’re partially obscured by the drive housing, but a depleted ring anode leaves the lower unit’s aluminum castings exposed to galvanic attack from stainless and bronze components nearby.\u003c\/p\u003e\n\u003cp\u003eZinc is the correct choice for open-ocean saltwater with consistently high salinity. If your vessel operates in brackish or mixed-salinity water — coastal inlets, estuaries, or tidal rivers — the \u003ca href=\"\/products\/11062243131428\"\u003ealuminum version\u003c\/a\u003e is the better choice, as zinc can passivate in lower-salinity conditions. For freshwater, use the \u003ca href=\"\/products\/11062243328036\"\u003emagnesium version\u003c\/a\u003e. Always confirm the OEM part number (875815-3) against your drive’s service manual before ordering.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":50999094149156,"sku":"194-CMV18","price":29.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/194-CMV18.jpg?v=1782799319","url":"https:\/\/marisolmarine.com\/products\/martyr-cmv18-zinc-large-ring-anode-volvo-penta-875815-3-194-cmv18","provider":"Marisol Marine Company","version":"1.0","type":"link"}