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Martyr Anodes CM398331Z Zinc OMC Anode Block for Outboard Motors

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

CM398331Z
06/01/2036 6:52 AM
Sale Price

$13.43

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CM398331Z is a high-quality zinc anode block designed specifically for OMC (Outboard Marine Corporation) outboard motors operating in salt water environments. This sacrificial anode provides critical corrosion protection for your engine's metal components by corroding preferentially, protecting more valuable parts from galvanic corrosion.

Key Features:

  • Premium zinc alloy construction optimized for salt water applications
  • Direct replacement for OMC outboard motor anode blocks
  • Meets or exceeds OEM specifications for corrosion protection
  • Easy installation with bolt-on design
  • Manufactured to strict quality standards for consistent performance

Material Selection by Water Type:

  • Zinc anodes (this product): Recommended for salt water use
  • Aluminum anodes: Best for brackish water environments
  • Magnesium anodes: Designed for fresh water applications

Regular inspection and replacement of sacrificial anodes is essential for maintaining your outboard motor's longevity and preventing costly corrosion damage. Replace anodes when they have eroded to approximately 50% of their original size.

I did get the order and it was on time . how ever it was not what I need .I did not order the right thing and I send it back . they was very helpful and I was happy with them . steve

Vera good options

The ordering was a simple process... I'm not sure if they will fit my pipes but we will find out

EXCELLINT

Good products at a good price!<br>Never bought from them before, so I used Google Checkout, I always get nervous about buying from a new online store, but they came through just fine.<br>Shipping was a little expensive for the product I purchased and the shipping time, but was still cheaper than most anywhere else.<br>$12 to ship an automotive gauge [>2 lbs] and it was a 5 day ship.<br>Otherwise, a very good experience, B+ to A- just because of shipping cost/time.

Great price even after shipping cost added I have installed them in my truck bed behind the cab, Looks like it goes all the way across like a full across the bed box, but I can reach everything from the ground. Love it.

Ordered Lucas gear oil and have to say the service is great and delivery was very quick. I will recommend Autoplicity for quality yet affordable prices. will do business with again!

They had the best price I could find, anywhere, for Royal Purple HPS oil (and I spent hours searching). I ordered a case on Sunday night and it arrived on Wednesday (standard shipping) from half-way across the country. For standard shipping, that's pretty fast. They must have send it out early Monday morning, at the latest.<br><br>I'm very satisfied with my experience, and I'll definitely be ordering from them again, when I need another case of oil.

Great Clutch kit I got, did have to contact customer sevice to see if my item shipped but was very nice about it. I would do business with them again. Item shipped quickly. Great price to.

Quick and easy. Website was easy to navigate via cell phone and checkout was fast and painless. Took over a day to get a shipping notification though. Would have been nice to had it for the weekend

tried to order a gasket with my exhaust pipe, shipping jumped12 just for gasket!! Not happening!!

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