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Martyr Anodes CMPNDAF14UNS Aluminum Prop Nut Anode for Mercruiser Bravo III

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

CMPNDAF14UNS
06/03/2036 9:32 AM
Sale Price

$86.21

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Martyr Anodes CMPNDAF14UNS (Martyr part number 865182C) is an aluminum prop nut anode designed to provide enhanced corrosion protection for Mercruiser Bravo III stern drives manufactured up to 2003. This sacrificial anode installs directly onto the propeller shaft, protecting expensive drive components from galvanic corrosion.

Key Features:

  • Aluminum alloy construction optimized for saltwater and brackish water environments
  • Direct replacement prop nut anode for Mercruiser Bravo III drives (up to 2003 models)
  • Enhanced protection formula helps extend the life of stern drive components
  • Threads directly onto propeller shaft for easy installation
  • Sacrificial anode design corrodes preferentially to protect more valuable metal parts

Important Installation Note: Always verify adequate propeller clearance after installing this or any prop shaft anode to ensure safe operation and prevent contact with the hull or drive housing.

Material Selection Guide: Aluminum anodes are recommended for saltwater and brackish water use. For freshwater applications, magnesium anodes should be used instead. Traditional zinc anodes are also available for saltwater environments.

Quick and easy and better bargain than competitors.

Overall good. Item discription a little vague.

Excellent website, easy to find, best price online

Bought an adjustable proportioning valve. Autoplicity was the cheepest source by several dollars. Haven't got it yet, but I did get an e-mail with-in 24 hours that stated that it had been shipped. As long as I get what I've ordered I would say that they are worth giving a shot.

Best price on-line. Delivered as promised. Have ordered additional items already.<br><br>Thanks

A small hiccup in the shipping of the order but once a call was made my item was shipped the next day.

good price on intake.shipping to high on other items

Excellent products, fast shipping, everything your looking for, great place to shop for parts and accessories.

very straightforward ordering, prompt delivery.

So far GREAT. Best price for sure and free shipping is also AWESOME!!!

My first order and I must say, very impressive! Awesome prices and super-fast shipping direct from the manufacturer. Couldn't ask for more! I will return.

great

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