{"product_id":"martyr-cmx09al-aluminum-streamline-shaft-anode-2in-194-cmx09al","title":"Martyr CMX09AL Aluminum Streamline Shaft Anode – 2\" Shaft | Stainless Allen Screw | Saltwater \u0026 Brackish","description":"\u003ch2\u003eMartyr CMX09AL Aluminum Streamline Shaft Anode\u003c\/h2\u003e\n\u003cp\u003eProtect your 2\" prop shaft from galvanic corrosion with this precision-cast aluminum streamline shaft anode. Aluminum is the preferred sacrificial metal for saltwater and brackish water environments — it remains electrochemically active across a wider salinity range than zinc, making it the better choice wherever water salinity varies or drops below full oceanic levels.\u003c\/p\u003e\n\u003cp\u003eThe low-drag, hydrodynamic profile minimizes water resistance while the stainless steel Allen head screw locks the anode firmly in place. The 2\" shaft diameter is found on large inboard vessels, heavy twin-screw cruisers, commercial workboats, and trawlers.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2\" (51mm) diameter prop shafts\u003c\/li\u003e\n\u003cli\u003eSaltwater and brackish water use\u003c\/li\u003e\n\u003cli\u003eLarge inboard and heavy twin-screw vessels\u003c\/li\u003e\n\u003cli\u003eCommercial workboats and trawlers\u003c\/li\u003e\n\u003cli\u003eReplaces OEM shaft anodes on most standard 2\" shaft configurations\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 CMX09AL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 194-CMX09AL\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 2\" (51mm)\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\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~430 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\/martyr-cmx09-zinc-streamline-shaft-anode-2in-194-cmx09\"\u003eCMX09 – 2\" Zinc\u003c\/a\u003e (saltwater)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/martyr-cmx09m-streamlined-shaft-anode-with-stainless-steel-allen-head-magnesium-194-cmx09m\"\u003eCMX09M – 2\" Magnesium\u003c\/a\u003e (freshwater)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdjacent Sizes – Aluminum\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/martyr-cmx08al-aluminum-streamline-shaft-anode-1-3-4in-194-cmx08al\"\u003eCMX08AL – 1-3\/4\" Aluminum Shaft Anode\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/martyr-cmx10al-streamlined-shaft-anode-with-stainless-steel-allen-head-aluminum-194-cmx10al\"\u003eCMX10AL – 2-1\/4\" Aluminum Shaft Anode\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/martyr-cmx07al-aluminum-streamline-shaft-anode-1-1-2in-194-cmx07al\"\u003eCMX07AL – 1-1\/2\" Aluminum Shaft Anode\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe CMX09AL is the best choice for 2\" shafts in saltwater and brackish conditions. Aluminum outperforms zinc in mixed or lower-salinity water because zinc can passivate — forming a surface layer that stops it from sacrificing properly — while aluminum stays active. For large commercial vessels and trawlers operating in coastal or estuarine waters, aluminum is the more reliable long-term choice.\u003c\/p\u003e\n\u003cp\u003eThe 2\" size is a specialty item rarely stocked at local marine retailers, so ordering well ahead of a haulout is strongly recommended. Always measure your shaft diameter with calipers before ordering — the 2\" CMX09AL is a distinct size from the 1-3\/4\" CMX08AL and the 2-1\/4\" CMX10AL. For freshwater, use the \u003ca href=\"\/products\/martyr-cmx09m-streamlined-shaft-anode-with-stainless-steel-allen-head-magnesium-194-cmx09m\"\u003eCMX09M magnesium version\u003c\/a\u003e.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":50999093723172,"sku":"194-CMX09AL","price":30.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/194-CMX03_22cd51b3-c775-4a01-b16e-13a6f5067842.jpg?v=1782799315","url":"https:\/\/marisolmarine.com\/products\/martyr-cmx09al-aluminum-streamline-shaft-anode-2in-194-cmx09al","provider":"Marisol Marine Company","version":"1.0","type":"link"}