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Martyr Anodes CM43994M Aluminum Anode for Mercury/Mercruiser Trim Tabs

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

CM43994M
06/03/2036 9:33 AM
Sale Price

$17.79

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CM43994M is a high-quality aluminum sacrificial anode designed specifically for Mercury and Mercruiser trim tab applications. This anode provides essential corrosion protection for your sterndrive or outboard trim components by attracting corrosive elements in the water, preventing damage to more expensive metal parts.

Key Features:

  • Precision-engineered for Mercury/Mercruiser trim tab systems
  • Premium aluminum alloy construction for optimal galvanic protection
  • Direct replacement for OEM part number 43994
  • Protects trim tabs and surrounding hardware from galvanic corrosion
  • Easy bolt-on installation

Martyr is a leading manufacturer of sacrificial anodes with over 50 years of experience in marine corrosion protection. Their anodes meet or exceed all military specifications and are designed to provide maximum protection in saltwater, brackish, and freshwater environments.

Important Installation Note: Always verify proper propeller clearance after installing new trim tab anodes to prevent contact or interference during operation.

Products specifications

Description

Alpha Gimbal HSG

Material

Magnesium

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Able to edit cart and check shipping cost as I added. Nice!

Very fast shipping, received it Monday when I ordered it on Thursday. Thanks!

Quick and easy, thanks

You sent me an email, with 30offtshipping code. Not sure if it worked.

Best prices online for hard to find parts!

Quick and easy

Quick n easy

There were some communication issues at the beginning. Some confusion about order numbers and shipping led to a couple days of going back and forth with them. In the end, they made every effort to make sure I was satisfied and that my order was complete and correct. Extremely cheap price, I bet I saved almost $100 on 4 EBC rotors. My only complaint is it took almost 2 weeks for shipping, but it did ship directly from the manufacturer so I can't say that's entirely the fault of Autoplicity.<br><br>Order #28295 on 08/26/2012

Easy to use, great prices and fast delivery too

So far so good. No description about which brake pads were for the front and which were for the back though. I haven't had a chance to install these yet but shipping was fast.

Great price, fast shipping, good company that I will do business with again!

I placed an order on Sunday and received my order on Wednesday morning. Product was carefully packaged and as advertised. Will buy from Autoplicity again. Thanks for the great service. Order number #18578

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