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Martyr Anodes CMZ03BA Zinc Streamlined Shaft Sacrificial 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

CMZ03BA
08/02/2036 4:02 PM
Sale Price

$44.81

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CMZ03BA is a zinc streamlined shaft sacrificial anode engineered to protect inboard propeller shafts from galvanic corrosion in saltwater environments. Part of Martyr's metric CMZ series, this two-piece collar anode is manufactured by Canada Metal (Pacific) Ltd. to meet or exceed U.S. Military specifications for alloy quality and performance.

Martyr's streamlined shaft anodes feature a purpose-built design that maximizes protection life and simplifies installation. The interlocking halves ensure a precise, snug fit around the shaft, while the circular inside diameter provides full 360-degree contact for optimal galvanic protection. Extra alloy material surrounding the fastener areas extends service life compared to standard collar designs.

Key Features:

  • Zinc alloy formulation — ideal for saltwater use
  • Mil-spec alloy construction meets or exceeds U.S. Military specifications
  • Two-piece interlocking design for secure, gap-free fit
  • Full circular inside diameter for 100% shaft contact
  • Included stainless steel hardware with bolt retaining washers for easy handling
  • Extra alloy around fasteners for extended service life
  • Erodes inward (sandblasted appearance) for predictable wear and easy inspection
  • Suitable for underwater installation

Martyr recommends replacing shaft anodes when they have eroded approximately 50–70%. Each alloy batch is lab-tested for quality assurance, with full certification and traceability available upon request. The CMZ03BA is part of Martyr's comprehensive lineup of over 1,000 anode types designed to fit all major marine engines and boat models.

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