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Martyr Anodes CM51525Z Frigoboat Keel Cooler Zinc 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

CM51525Z
06/03/2036 8:33 AM
Sale Price

$4.51

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Martyr Anodes CM51525Z is a replacement zinc anode specifically designed for Frigoboat's Keel Cooler marine refrigeration systems. This sacrificial anode provides critical corrosion protection by attracting electrolysis away from vital metal components in your vessel's refrigeration cooling system.

Key Features:

  • Engineered specifically for Frigoboat Keel Cooler systems
  • High-purity zinc alloy construction for maximum protection
  • Sacrificial design protects expensive refrigeration components from galvanic corrosion
  • Direct replacement part for easy maintenance
  • Marine-grade materials for saltwater environments

Installation Note: Two anodes are required for complete system protection. Regular inspection and replacement of sacrificial anodes is essential for maintaining the longevity of your marine refrigeration system.

Martyr Anodes are manufactured to strict quality standards and are widely recognized as premium marine corrosion protection products. This genuine Martyr anode ensures your Frigoboat refrigeration system remains protected from the damaging effects of electrolysis in marine environments.

Best prices that I could find. Quick shipping

Great service and product. A+!

I like the site The only thing I didn't like Was they gave me a bad tracking number

Awesome price, fast shipping, and accurate tracking. I ordered from Autoplicity because of the great reviews and they didn't disappoint. There is no question that I will be ordering again.

Not sure why 1 item qualified for free shipping and the other didn't. They were both in stock. One was right side and one was left side. The price dropped after I placed my order but thanks to the buySAFE I would submit for the difference.

Awesome brahh cheapest price

So far easy order entry and good prices

There was no description with my item but the part number is correct so I'm optimistic.

Great Job

they had the lowest price around for my car's k&n air filter. A great product at wholesale prices!

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