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Martyr Anodes CMR01S Streamlined Rudder Zinc Anode with Slotted Stainless Steel Hardware

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

CMR01S
06/03/2036 9:36 AM
Sale Price

$4.74

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CMR01S is a streamlined zinc anode designed specifically for rudders and trim tabs on boats operating in saltwater environments. This sacrificial anode protects vital underwater metal components from galvanic corrosion by corroding preferentially, extending the life of expensive rudders, trim tabs, and other submerged hardware.

Key Features:

  • Streamlined profile reduces drag and maintains optimal hydrodynamics
  • Premium zinc alloy formulation for maximum galvanic protection in saltwater
  • Includes stainless steel slotted head mounting hardware for secure installation
  • Precision-cast design ensures consistent performance and proper fit
  • Meets or exceeds military specification MIL-A-18001K

Martyr Anodes are manufactured to the highest quality standards and are recognized as premium marine anodes worldwide. Regular inspection and replacement of sacrificial anodes is essential to maintaining proper corrosion protection for your vessel's underwater metals. This anode is specifically designed for saltwater use—consult manufacturer guidelines for freshwater or brackish water applications.

Very good prices in comparison to others

Always great to do business with

Easy shopping...we'll see about the product. and speed of shipping.

The search function wouldn't find the Pertronix part number 1847A with only the 1847 entered in the search field. I had to enter the whole part number. Less is more in a search, so if you fixed that, more people might find the part they want and order it.

I was extremely pleased. The order arrived right away - before I expected it. I will buy from them again.

great. couple clicks on mouse and wham! its ordered.

Super Fast! Website was easy to user, multiple different payment options (Amazon, Paypal, Credit Card) Got a notification of shipment within 1 hour!

great price

Product was as described, shipping was fast, and communication was excellent. Plus I saved $$. Thanks Autoplicity! I'll be a repeat buyer and referral source.

5 STAR MERCHANT! Recommend to everybody. Extremely quick, relieable, honest, and accurate. Item was delivered 2 days sooner than they told me in perfect condition. Additionally, they were the least expensive for the item. I do not know how they do it but they did it.

Very quick on shipping, at a great price.

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