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Martyr Anodes CMV18 Volvo Penta Ring Anode Zinc

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

CMV18
06/03/2036 8:36 AM
Sale Price

$16.82

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Martyr Anodes CMV18 is a large ring-style sacrificial anode designed specifically for Volvo Penta sterndrive and inboard applications. This zinc anode provides essential corrosion protection by sacrificing itself to prevent galvanic corrosion damage to more valuable metal components in your drive system.

Key Features:

  • Direct OEM replacement for Volvo Penta part number 875815-3
  • High-quality zinc alloy construction optimized for saltwater and brackish water use
  • Large ring design for extended service life and maximum protection
  • Precision-engineered to exact Volvo Penta specifications
  • Easy installation with proper fit and finish

Martyr is a trusted name in marine corrosion protection, manufacturing anodes that meet or exceed OEM standards. Regular inspection and replacement of sacrificial anodes is critical to protecting your sterndrive from costly corrosion damage. This anode should be replaced when approximately 50% of the material has been consumed.

free shipping is a big plus,thanks

Easy navigation and quick process to checkout.

Fast and courteous.

The ordering process was very easy.

Everything was great from autoplicity, but Fed ex their tracking of shipment sucks. All it does is say shipped, then in transit, finally delivered, that isnt order tracking that's basically the shipping process, it said in transit for 3 days (of course) leaving me with no idea how close it is.

I shows that it is &quot;in stock&quot; and that it will &quot;ship immediately&quot;... We'll see what happens.

Easy to find part and verify fit, price is low shipping not outrageous.

Great price and fast shipping!! i would order parts again from here.. Thanks

looking forward to receiving my order!

I looked for hours and this was by far the best price I found anywhere. Told all my friends about it. Thanks Autoplicity!

good

Excellent

good so far.

Excellent and very quick service. I could not find this product in stock from any other supplier so I kept hunting. I found Autoplicity and from now on they are the first company I will try. Thank you.

I found great prices and they shipped immediately. Best deal online.

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