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Martyr Anodes CM821630C2A 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

CM821630C2A
06/01/2036 7:01 AM
Sale Price

$12.40

In Stock (6)

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Usually delivered within 2 days

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Fitment guaranteed

Product Details

The Martyr CM821630C2A is a high-quality aluminum trim tab anode designed specifically for Mercury Mercruiser sterndrive applications. This sacrificial anode provides essential corrosion protection for your outdrive components by attracting galvanic corrosion away from critical metal parts.

Key Features:

  • Premium aluminum alloy construction for superior galvanic protection in saltwater and brackish water environments
  • Direct replacement for Mercury OEM part number 821630C2
  • Precision-engineered to fit Mercury Mercruiser trim tabs without modification
  • Helps prevent costly corrosion damage to sterndrive housing and trim components
  • Easy installation with included mounting hardware

Martyr Anodes are manufactured to meet or exceed OEM specifications and are widely recognized as the premium choice for marine corrosion protection. Regular inspection and replacement of sacrificial anodes is essential for maintaining your sterndrive system. Important: Always verify propeller clearance after installing new trim tab anodes to ensure safe operation.

Lowest price that i could find,fast shipping!!!!!<br>

great fast shipping best price even with high shipping fees

Awesome

Best prices on the net. Great selection.

good service

Great price and quick shipment!

very cheap prices compared to competitors hoping product is as good as price.

Quick and painless

Excellent Customer Service, returned an incorrect item immediately and helped me to get the correct one asap.<br><br>Thanks Autoplicity for doing the right thing always!!!

Ok, I guess.

Great prices! Wonderful customer service!

Placed my order for my K&N CAI on saturday, but didnt have enough cash so the order finalized on sunday morning. Autoplicity provided excellent service via phone and I should be receiving my CAI later today!!!! Super Stoked. Thank you Autoplicity for providing good service!!<br>Will buy from this site again!!

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