{"product_id":"zinc-donut-shaft-anode-2in-id-cmt-c09","title":"Zinc Donut Shaft Anode 2\" ID x 1-3\/8\" x 3-1\/2\" (CMT-C09)","description":"\u003ch2\u003eZinc Donut Shaft Anode — 2\" ID x 1-3\/8\" x 3-1\/2\"\u003c\/h2\u003e\u003cp\u003eDefend your propeller shaft against galvanic corrosion with this zinc donut shaft anode. Engineered as a sacrificial collar, it mounts directly onto the shaft and corrodes preferentially — protecting your shaft, propeller, and underwater running gear from costly electrolytic damage season after season.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Purity Zinc Alloy\u003c\/strong\u003e — Provides maximum galvanic protection in salt water and brackish environments; manufactured to MIL-SPEC zinc alloy standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDonut \/ Collar Profile\u003c\/strong\u003e — Slip-on design fits snugly around the shaft for a secure, low-profile installation without restricting propeller clearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision-Matched Dimensions\u003c\/strong\u003e — 2\" inner diameter x 1-3\/8\" width x 3-1\/2\" outer diameter; confirm shaft diameter before ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-In Replacement\u003c\/strong\u003e — Direct swap for worn or depleted shaft anodes; inspect annually or when more than 50% consumed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Painting Required\u003c\/strong\u003e — Bare zinc surface must remain uncoated to maintain galvanic activity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Zinc alloy (sacrificial)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter (ID):\u003c\/strong\u003e 2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 1-3\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter (OD):\u003c\/strong\u003e 3-1\/2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Propeller shaft corrosion protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Salt water, brackish water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e CMT-C09\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eClean the shaft surface thoroughly before fitting. Slide the donut anode onto the shaft and secure with set screws using appropriate stainless hardware. Position as close to the propeller as practical without restricting rotation. Replace when the anode has lost approximately half its original mass. \u003cstrong\u003eDo not paint anodes\u003c\/strong\u003e — coating blocks galvanic action and renders the anode ineffective.\u003c\/p\u003e\u003cp\u003eA properly maintained sacrificial anode is the most cost-effective insurance for your underwater running gear. The CMT-C09 is a reliable, correctly-sized choice for 2\" propeller shafts.\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":44025482739748,"sku":"CMT-C09","price":45.81,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/cmc01-20_75edd24c-2465-48df-ab07-677b66d1c33f.jpg?v=1776276884","url":"https:\/\/marisolmarine.com\/products\/zinc-donut-shaft-anode-2in-id-cmt-c09","provider":"Marisol Marine Company","version":"1.0","type":"link"}