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Martyr Anodes CMR03AL Aluminum Rudder/Trim Tab Anode with Stainless Steel Allen Head Screw

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

CMR03AL
06/03/2036 9:36 AM
Sale Price

$10.90

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CMR03AL is a high-quality aluminum sacrificial anode designed specifically for protecting rudders and trim tabs from galvanic corrosion in saltwater and brackish water environments. This specialized anode provides critical cathodic protection for these vulnerable underwater components, extending the lifespan of your boat's steering and control systems.

Key Features:

  • Premium aluminum alloy construction optimized for maximum protection in saltwater applications
  • Includes corrosion-resistant stainless steel Allen head mounting screw for secure installation
  • Compact profile design minimizes drag while providing effective galvanic protection
  • Easy installation with pre-drilled mounting hole
  • Manufactured to strict military specifications (MIL-A-24779) for consistent performance
  • Suitable for rudders, trim tabs, and other underwater steering components

Martyr Anodes are recognized as premium quality sacrificial anodes in the marine industry, manufactured from high-purity alloys to ensure proper electrical potential and reliable corrosion protection. Regular inspection and replacement of sacrificial anodes is essential for maintaining the integrity of your vessel's underwater metals. This anode should be replaced when approximately 50% of the material has been consumed.

Quick, easy, and great pricing, just the way I like it!

everything was easy and fast

Cheap prices, easy checkout. Thanks.

Great Prices! Affordable Shipping! Happy so Far!

Was for head gaskets. They used to come 2 to a pack--now same price and there is only one in the pack (1135g) Mr. Gasket. Knowing this, I wouldn't have ordered.

So far so good! Easy, phone call gave me the details I needed. Best price too!

Called and great customer service. Thank you.

Amazon payments made it fast and more trusted. Free shipping and tax made it affordable.

Great price, much cheaper than other retailers. Also, the package got shipped within 24hrs.

Fast

Awesome price on a name brand part. Good communication too. Many payment plans and you can use your PayPal !!

It was good.

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