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Martyr Anodes CMKK2Z Walter Keel Zinc Anode 3-1/4" x 3-1/4" x 1-1/8"

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

CMKK2Z
06/03/2036 9:32 AM
Sale Price

$13.77

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CMKK2Z is a zinc keel anode designed specifically for saltwater marine applications. This Walter-style keel anode provides essential galvanic corrosion protection for underwater metal components on boats and marine vessels.

Key Features:

  • Zinc alloy construction for saltwater use
  • Walter keel anode design for efficient protection
  • Compact dimensions: 3-1/4" L x 3-1/4" W x 1-1/8" H
  • Protects propellers, shafts, rudders, and other underwater metals
  • Easy bolt-on installation to keel area

Zinc anodes are the preferred sacrificial anode material for saltwater environments, where they effectively prevent galvanic corrosion by sacrificing themselves instead of more valuable metal components. Regular inspection and replacement of sacrificial anodes is essential for maintaining proper corrosion protection on marine vessels.

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The ordering process was very simple. Also, I've searched the internet and they defiantly have the best prices.

quick easy and best price

Quick to find part and pay using Amazon.

Easy to use website, great prices!

great doing business with you

Transaction has been smooth so far. Pricing is great compared to other online retailers.

Great price on the part I needed. Fast shipping and good notifications of my order status. Will definitely keep them in mind for future purchases.

Sweet thanks

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