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Martyr Anodes CMMZ404M Medium Streamlined Magnesium Hull 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

CMMZ404M
06/01/2036 4:47 AM
Sale Price

$27.14

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Product Details

The Martyr Anodes CMMZ404M is a medium-sized streamlined magnesium hull anode designed to provide reliable galvanic corrosion protection for boats and marine vessels in freshwater and brackish water environments. This sacrificial anode protects underwater metal components such as hulls, rudders, trim tabs, and other submerged hardware by corroding preferentially to preserve more expensive metals.

Key Features:

  • Magnesium alloy construction for superior protection in freshwater and brackish water
  • Streamlined low-profile design minimizes drag and maintains vessel performance
  • Medium size suitable for a wide range of boat types and applications
  • Easy to install with standard mounting hardware
  • Meets or exceeds military specification MIL-A-18001K
  • Manufactured to strict quality standards for consistent performance

Martyr is a trusted name in marine corrosion protection, manufacturing anodes that meet stringent industry standards. Regular inspection and replacement of sacrificial anodes is essential for maintaining the integrity of your vessel's underwater metals and preventing costly corrosion damage.

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Easy transaction and great price. Thanks for allowing the Amazon checkout too, awesome!

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Great service and price. Super fast shipping. What more can you ask? Thanks!

So far . . . so good.

Best Price I could find on this item

Fast shipping and LOWEST PRICES AROUND.

Great prices, and much faster delivery than expected. They "over-delivered" on what they said they'd do. Will definitely use them again!

good shopping experience

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