{"product_id":"martyr-cmx03al-aluminum-streamline-shaft-anode-1in-194-cmx03al","title":"Martyr CMX03AL Aluminum Streamline Shaft Anode – 1\" Shaft | Stainless Allen Screw | Saltwater \u0026 Brackish","description":"\u003ch2\u003eMartyr CMX03AL Aluminum Streamline Shaft Anode\u003c\/h2\u003e\u003cp\u003eKeep your 1\" prop shaft protected from galvanic corrosion with this precision-cast aluminum streamline shaft anode. The low-drag, hydrodynamic profile minimizes water resistance while delivering reliable sacrificial protection — ideal for saltwater and brackish water environments where aluminum outperforms zinc.\u003c\/p\u003e\u003cp\u003eSecured with a stainless steel Allen head screw for a solid, rattle-free fit that stays put underway. A straightforward upgrade that protects your shaft, cutlass bearing, and running gear season after season.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1\" (25mm) diameter prop shafts\u003c\/li\u003e\n\u003cli\u003eSaltwater and brackish water use\u003c\/li\u003e\n\u003cli\u003eInboard and inboard\/outboard (I\/O) vessels\u003c\/li\u003e\n\u003cli\u003eReplaces OEM shaft anodes on most standard 1\" shaft configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CMX03AL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 194-CMX03AL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum alloy (sacrificial)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 1\" (25mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener:\u003c\/strong\u003e Stainless steel Allen head screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfile:\u003c\/strong\u003e Streamlined \/ hydrodynamic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Saltwater \u0026amp; brackish water\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe CMX03AL is the go-to aluminum shaft anode for 1\" shafts in saltwater and brackish conditions. Aluminum anodes are the preferred choice over zinc when operating in brackish or mixed-salinity water — zinc can passivate in lower-salinity environments and lose effectiveness, while aluminum remains active across a wider salinity range. If you're in freshwater, consider the \u003ca href=\"\/products\/cmx03m-1-shaft-anode-magnesium-194-cmx03m\"\u003eCMX03M Magnesium version\u003c\/a\u003e instead. For the zinc equivalent in saltwater, see the \u003ca href=\"\/products\/1-shaft-anode-zinc-194-cmx03\"\u003eCMX03 Zinc Shaft Anode\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eAlso available in adjacent sizes: \u003ca href=\"\/products\/sl-shaft-anode-cmx02al-7-8-aluminum-194-cmx02al\"\u003eCMX02AL – 7\/8\" Aluminum\u003c\/a\u003e | \u003ca href=\"\/products\/sl-shaft-anode-cmx04al-1-1-8-aluminum-194-cmx04al\"\u003eCMX04AL – 1-1\/8\" Aluminum\u003c\/a\u003e\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":50999088316452,"sku":"194-CMX03AL","price":12.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/194-CMX03_747355f6-d10a-4c03-9772-f126189634c1.jpg?v=1782799280","url":"https:\/\/marisolmarine.com\/products\/martyr-cmx03al-aluminum-streamline-shaft-anode-1in-194-cmx03al","provider":"Marisol Marine Company","version":"1.0","type":"link"}