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Martyr Anodes CMR02AL Aluminum Rudder & Trim Tab Anode with Allen Screw 2-13/16"

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

CMR02AL
06/01/2036 6:57 AM
Sale Price

$8.34

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr CMR02AL is a 2-13/16" diameter aluminum sacrificial anode designed to protect boat rudders and trim tabs from galvanic corrosion in salt and brackish water environments. Secured with an included Allen screw for a secure, low-profile mount, this button-style anode is an essential part of any marine corrosion protection system.

Key Features:

  • Aluminum construction — ideal for salt and brackish water use; offers effective protection in both environments and even some protection in freshwater
  • 2-13/16" (2.81") outer diameter x 1/2" profile — designed for CMR-2 rudder and trim tab applications
  • Allen screw included — enables fast, tool-simple installation and secure attachment to rudder or trim tab surfaces
  • Pressure die-cast using a specialized alloy manufactured to current U.S. Military Mil-Spec standards (MIL-A-L800L) for consistent quality and performance
  • Chemically tested to ensure alloy consistency and electrochemical efficiency in every unit
  • Erodes inward for a controlled, predictable sacrificial wear pattern
  • Aluminum anodes last up to 50% longer than zinc in saltwater and are lighter in weight

UPC: 628309127848 | MPN: CMR02AL | Also referenced as DMP Part # 24-1627

Martyr anodes are manufactured by Martyr Pacific Limited and are trusted worldwide for premium marine corrosion protection. Replace anodes when approximately 70% eroded to maintain continuous protection for your vessel's underwater metals.

This copany shipped my order promptly. I would do business with them again.

Good service! Really helpful.

I'M PRESUMING THAT THIS IS A BRAND NEW BATTERY AND NOT A REBUILT. SHOULD IT BE A REBUILD, PLEASE CANCEL MY ORDER. THANX, FRANK

Fast &amp; painless other than filling the bank to be able to spend it.

Excellent product at a great price. Very fast shipping.

I bought from them for the first time because the price was the lowest listed on Amazon. They shipped it fast and I am happy. I will buy again.

Amazing. Ordered Thursday night and received item Saturday morning! Just as described.

Ordered a Thule ski rack. Best price on the web. Prompt delivery as promised, however, did not get shipping email and tracking no until after delivery was already made. The customer service that I experienced trying to get info on delivery was less than desirable. Four stars o ly.

Easy ordering and checkout

Good enough

Would be nice if you had more pictures of the item.

Good...so far.

Amazing Prices, saved hundreds over other Performance websites. Fast Shipping to top it off! Even with having to pay for shipping I saved $160 using Autoplicity over another "racing" website. Will absolutely do business with again!

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