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Martyr Anodes CMX03M 1" Magnesium Shaft Anode with Allen 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

CMX03M
06/03/2036 6:34 AM
Sale Price

$14.24

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Martyr Anodes CMX03M is a streamlined magnesium shaft anode designed to provide superior galvanic corrosion protection for 1-inch propeller shafts in freshwater and brackish water applications. This precision-engineered anode attaches securely to the shaft using an integrated Allen screw set, ensuring reliable bonding and optimal corrosion prevention.

Key Features:

  • Magnesium alloy construction ideal for freshwater and brackish water environments
  • Streamlined design minimizes drag and turbulence while maximizing protection
  • Fits 1-inch diameter propeller shafts
  • Allen screw attachment for secure, low-profile installation
  • Prevents galvanic corrosion of underwater metal components including shafts, rudders, and struts
  • Manufactured to meet or exceed industry standards for marine sacrificial anodes

Martyr is a trusted name in marine corrosion protection, offering high-quality sacrificial anodes that dissolve preferentially to protect more expensive boat components. Regular inspection and replacement of shaft anodes is essential for maintaining comprehensive corrosion protection in your marine propulsion system.

Quick fast ordering

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Fast service and delivery. Will recommend to others.

Great price

Can't say how the product is just installed

Great product great price great delivery

Fast, professional service.

good dealer

super !!

No problems so far. Reasonable 2 day air costs

Best price for the item I needed. Very fast shipping and there consumer service was great on the phone.

great so far,hope to be notified of shipping

My son lives about 1500 miles from me. He had asked me to get him an Industries SuperFlow Hi-Volume Air Compressor for Christmas. <br>With a couple of click on my computer, the compressor was ordered to be shipped to him and was paid for. He had the exact compressor he requested within five days.(and that included the weekend)<br>One word sums up my experience---EASY

It was good quick and eassy

Awesome!

Lowest price for my product anywhere, friendly service, and super fast shipping. Will do business with again! A++++

Shipped in great time! Absolutely loving my Q300. Would definitely recommend and order from here again!

Low prices, Fast shipping and great service!

very easy

Ordering my product was and best part of it was delivered earlier than expected,thanks again

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