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Martyr Anodes CMXC30Z Clamp Shaft Anode with 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

CMXC30Z
06/03/2036 9:36 AM
Sale Price

$15.74

In Stock (8)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CMXC30Z is a clamp-style shaft anode designed to protect propeller shafts from galvanic corrosion in saltwater and brackish water environments. This sacrificial anode clamps directly onto the shaft, providing reliable cathodic protection without requiring shaft removal or modification.

Key Features:

  • Clamp insert design ensures a tight, secure fit to the propeller shaft
  • Stainless steel slotted head hardware included for corrosion resistance
  • Lock washers provided to prevent loosening during operation
  • Bolt retaining washers prevent the anode from falling off the shaft
  • Simple installation can be performed underwater without haul-out
  • Made from high-quality aluminum alloy for maximum protection

This clamp shaft anode is ideal for recreational and commercial vessels where shaft protection is needed. The split-clamp design allows for easy installation and replacement, making it a cost-effective solution for maintaining your vessel's underwater metal components. Regular inspection and replacement of sacrificial anodes is essential for preventing costly corrosion damage to shafts, struts, and rudders.

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User friendly

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thanks for having all what i need . hook it up wit some stickers

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Easy

Great and quick

quick and easy! what more can i say?

Fast shipping, product matches description

I ordered a Flowmaster cat back system for my 2012 F-150. The order arrived the day they said it would and the product came at a fair price. Well done.

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