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Martyr Anodes CMPNAD Replacement Prop Nut Anode Aluminum Series D

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

CMPNAD
06/03/2036 9:31 AM
Sale Price

$14.49

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CMPNAD is a replacement propeller nut anode designed to provide sacrificial corrosion protection for outboard and sterndrive propellers. This aluminum anode fits Series D prop nuts and protects valuable underwater metal components from galvanic corrosion in saltwater and brackish water environments.

Key Features:

  • Aluminum alloy construction optimized for saltwater and brackish water use
  • Series D fitment for compatibility with specific prop nut configurations
  • Sacrificial anode design protects propeller hardware and lower unit components
  • Direct replacement for worn or depleted prop nut anodes
  • Manufactured to strict quality standards for reliable corrosion protection

Martyr is a leading manufacturer of sacrificial anodes for marine applications, providing proven protection against galvanic corrosion. Regular inspection and replacement of sacrificial anodes is essential for maintaining the integrity of your propulsion system. Replace this anode when it has corroded to approximately 50% of its original size.

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It was quick and simple. Found part and it was in stock.

Easy, cheap, reasonable shipping

Your check out process through amazon showed error. I have NEVER had a problem checking out with amazon!!!

Great prices and service. Quality parts for the best price online. Will be my first choice form now on.

Order #30897. Ordered on Monday, received on Thursday. Exactly what I needed. Can't ask for anything more. Definitely will look at Autoplicity again when I need more parts!

I have searched the internet for the best pricing on auto accessories and ended up at Autoplicity. I tried everything to negotiate prices with some supplies and still got the best pricing usins Autoplicity without any hassles or delays. My invoice number 9314 shows that I got a great deal thanks to Autoplicity. I will be a returning customer for my future purchases.

Quick, easy & reliable.

first order fast shipping and great fit

Excellent price and great customer service. Would do business with them again.

Great customer service and fast shipping. I highly recommend this company for auto parts.

Product is great! Price is perfect! Shipping was slow.... Guess thats what i get for saving some money. Oh well! Ordered 3/25/12 and received 4/5/12 :(

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