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Martyr Anodes CMX10M 2-1/4" Magnesium Shaft Anode

Manufacturer

Martyr Anodes

<h3>About Martyr Anodes</h3><p>When it comes to defending a vessel against galvanic corrosion, few names carry the authority of <strong>Martyr Anodes</strong>. A flagship brand within the <strong>CMP Group</strong>, Martyr has its roots in foundry operations that date back to the early 1900s in Vancouver, BC, growing from a local manufacturer into a globally recognized leader in marine cathodic protection. Today, the brand supplies boaters, commercial operators, and marine professionals worldwide with sacrificial anodes engineered to guard hulls, propellers, rudders, shafts, engines, and other submerged components from the relentless effects of corrosion.</p><h3>Three Alloys, Every Water Type</h3><p>What sets Martyr apart from competing anode manufacturers is its position as the only brand to offer all three protective alloys — zinc, aluminum, and magnesium — under a single product line. This matters because the correct alloy depends entirely on the water environment a vessel operates in. Zinc anodes are the classic choice for aggressive saltwater conditions, while aluminum anodes are preferred for saltwater and brackish environments, offering superior corrosion resistance with a reduced environmental footprint. Magnesium anodes are the go-to solution for freshwater use, delivering effective sacrificial protection without degrading too quickly. Whatever the operating environment, Martyr has an engineered solution to match.</p><h3>Military-Grade Manufacturing Standards</h3><p>Martyr does not cut corners on metallurgy. Every anode is pressure die-cast and manufactured to meet or exceed <strong>U.S. Military alloy specifications</strong>, using only high-purity metals. Each alloy batch is lab-tested with full certification and traceability available upon request. This rigorous quality management — operating under an ISO 9001 framework — ensures that each anode delivers consistent, long-lasting galvanic performance across a wide range of marine environments, from recreational pleasure craft to commercial vessels and naval applications.</p><h3>Anode Kits for Simplified Protection</h3><p>For boaters who want a complete, hassle-free maintenance solution, Martyr&rsquo;s <a href="/7452-martyr-anodes-anode-kits-200102">Anode Kits</a> offer pre-packaged sets engineered for specific engine models and boat types. Compatible with major marine engine brands including Yamaha, Mercury, Volvo, and MerCruiser, these kits take the guesswork out of corrosion protection and ensure every critical system receives optimal coverage in a single purchase.</p><h3>Sustainability at the Core</h3><p>Martyr and the CMP Group have made environmental stewardship a cornerstone of their mission. Traditional zinc anodes can contain cadmium, a metal that poses risks to aquatic ecosystems. Martyr actively advocates for the adoption of aluminum and magnesium alternatives that deliver equal or superior protection while minimizing harm to marine environments — embodying the brand&rsquo;s philosophy of &ldquo;Protect your boat, protect our waters.&rdquo; With over 1,000 anode types available and a catalog that fits virtually every major marine engine and boat model, Martyr remains one of the most comprehensive and trusted sources for marine corrosion protection in the world.</p>

Part Number

CMX10M
06/01/2036 9:58 AM
Sale Price

$77.87

In Stock (8)

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Product Details

The Martyr Anodes CMX10M is a 2-1/4" diameter magnesium shaft anode designed to provide cathodic protection for boat propeller shafts in freshwater environments. Magnesium anodes are the preferred choice for freshwater use, offering superior electrochemical activity compared to zinc or aluminum anodes in low-conductivity water.

Martyr Anodes are manufactured to meet or exceed MIL-SPEC standards, ensuring consistent alloy composition and reliable corrosion protection for your drivetrain components. The CMX10M mounts directly to the propeller shaft, sacrificing itself to protect more expensive metal components from galvanic corrosion.

Key Features:

  • Material: High-purity magnesium alloy — optimized for freshwater use
  • Shaft Diameter: 2-1/4" (fits 2.25" propeller shafts)
  • Type: Clamp-on collar shaft anode
  • Meets MIL-SPEC alloy standards for maximum anode efficiency
  • Protects propeller shafts from galvanic and electrolytic corrosion
  • Includes stainless steel hardware for secure mounting

Replace this anode when it has been reduced to approximately 50% of its original size to maintain continuous protection. The CMX10M is part of Martyr's comprehensive line of magnesium anodes engineered for reliable performance in freshwater lakes, rivers, and marinas.

Very to the point best princess around will purchase again in the future.

Great

Great experience !

Seem to always have what I need when others do not.

It took Overton 1 week to tell me that this item was out of stock so I had to purchase from another place. Easy to order from boatplicity.

Anxiously awaiting my order

They met all my expectations, which isn't a simple thing to do. I will visit the site again for future purchases.

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