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Martyr Anodes CM821629CZ Aluminum Trim Tab Anode for Mercury Mercruiser

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

CM821629CZ
06/03/2036 9:32 AM
Sale Price

$14.71

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CM821629CZ is a corrosion-resistant aluminum anode designed specifically for Mercury Mercruiser stern drives. This trim tab anode provides critical cathodic protection for your outdrive, helping prevent galvanic corrosion that can damage expensive marine drive components in saltwater and brackish water environments.

Key Features:

  • Premium aluminum alloy construction for maximum protection
  • Direct replacement for Mercury part number 821629C
  • Designed for stern drive trim tab mounting
  • Protects against galvanic corrosion in marine environments
  • Easy installation with proper hardware

Martyr is a leading manufacturer of sacrificial anodes, using high-quality materials that meet or exceed OEM specifications. Regular anode replacement is essential for maintaining your stern drive's longevity. Always verify propeller clearance after installation to ensure proper operation and prevent damage.

Application: Mercury Mercruiser stern drives

OEM Part Number: 821629C

It's odd leaving a review before I receive my order but the website is easy to maneuver through and gives you nice check out options- shipping costs was very fairly priced as well.

quick ....I hope the product is what I am looking for

So far so good!

shipped fast, cant wait to put it on the jeep, would buy from here in the future.

So far so good we will see how 2nd day air shipping works. Thanks

Great prices and super fast shipping. Found my new online parts store!

Good buy , no problem!

Very quick and painless. I love that you accept Amazon payments.

Simply amazing prices, fast shipping, and easy to work with customer service! You can't find a better place to buy from!

Great Service

Was able to find parts I needed easily and at a great price!

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