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Martyr Anodes CMX00 1/2" Shaft Anode Zinc

Manufacturer

Martyr Anodes

<h3>Martyr Anodes: The World&apos;s Premium Marine Corrosion Protection</h3><p>Few threats to a vessel are as silent and relentless as galvanic corrosion. Submerged metal components—propellers, rudders, shafts, trim tabs, and engine parts—are constantly at risk when dissimilar metals come into contact in an electrolytic environment like seawater. <strong>Martyr Anodes</strong> has spent decades engineering sacrificial anodes specifically to stop that process in its tracks, earning a reputation as one of the most trusted names in marine cathodic protection worldwide.</p><p>Operating as a flagship brand within the CMP Group, Martyr holds a unique distinction in the industry: <a href="/7452-martyr-anodes-anodeszincs-200103">it is the only manufacturer to offer all three anode alloys</a>—zinc, aluminum, and magnesium—under one roof. That breadth matters because the optimal anode material depends entirely on the water you sail. Zinc is the traditional choice for saltwater applications, aluminum excels in saltwater and brackish conditions while delivering a reduced environmental footprint, and magnesium is the go-to solution for freshwater boaters. Having all three alloys available means every boater can select the right protection for their specific environment.</p><h3>Military-Grade Standards, Lab-Certified Quality</h3><p>Quality at Martyr is not a marketing claim—it is a specification. Every anode in the lineup is pressure die-cast and manufactured to strict U.S. Military Alloy Specifications, including MIL-DTL-18001 for zinc and MIL-DTL-24779C for aluminum. Each alloy batch undergoes laboratory testing with full certification and traceability available upon request. The result is an anode with consistent electrochemical activity, even consumption rates, and predictable service life—qualities that professional mariners and weekend boaters alike can depend on season after season.</p><p>With <a href="/7452-martyr-anodes-anodeszincs-200103">more than 1,000 individual anode types</a> covering hulls, shafts, propellers, rudders, trim tabs, bow thrusters, and outboard engines, the Martyr catalog is engineered to fit virtually every major marine engine brand and boat model. Compatibility is a priority: the anodes are designed to precise industry standards for weight and dimension so they drop into place without guesswork.</p><h3>Simplified Protection with Anode Kits</h3><p>For boaters who want a straightforward path to complete corrosion coverage, Martyr&apos;s <a href="/7452-martyr-anodes-anode-kits-200102">engine-specific anode kits</a> deliver everything needed for a full service in a single package. Each kit is assembled for a specific engine make, model, horsepower range, and water type, eliminating the need to source individual pieces separately. Kits are available for top engine brands including Yamaha, Mercury, Volvo, and MerCruiser—making seasonal anode replacement a fast, confident job at the dock or in the yard.</p><h3>A Commitment to Sustainable Boating</h3><p>Martyr has also taken a leadership role on the environmental side of corrosion protection. Traditional zinc anodes can contain cadmium, a metal that poses risks to aquatic ecosystems. As part of its broader corrosion control mission, Martyr has actively championed the adoption of aluminum and magnesium anodes as safer, more sustainable alternatives—materials that deliver equal or superior cathodic performance without the ecological concerns associated with cadmium-containing zinc. That philosophy reflects a brand whose protection ethos extends from the boat to the water around it.</p><p>Whether you are fitting out a new vessel, performing routine seasonal maintenance, or upgrading an aging protection system, Martyr Anodes offers a complete, verified solution backed by rigorous engineering and a century-long heritage of foundry expertise.</p>

Part Number

CMX00
09/12/2036 12:59 PM
Sale Price

$7.85

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Martyr Anodes CMX00 is a streamlined zinc shaft anode designed to protect 1/2" propeller shafts from galvanic corrosion in saltwater and brackish water environments. This sacrificial anode acts as the first point of corrosion, preserving your more expensive underwater metals like propellers, shafts, rudders, and through-hull fittings.

Key Features:

  • Streamlined design minimizes drag and maintains optimal boat performance
  • Fits 1/2" diameter propeller shafts
  • Secured with Allen screw for reliable installation and easy replacement
  • Zinc alloy construction ideal for saltwater and brackish water applications
  • Meets or exceeds military specification MIL-A-18001K
  • Precision cast for consistent quality and performance

Martyr is the only manufacturer that offers all three alloys—zinc, aluminum, and magnesium—ensuring you have the right protection for your specific water conditions. Regular inspection and replacement of shaft anodes is essential for maintaining comprehensive corrosion protection for your vessel's underwater components.

Worked great

Good service,delivery was on time.

Quick and easy

Nice service

I drive a semi truck which does not have any windows behind the passenger seat, it is very hard to see anything behind that window, which creates a big blind spot. The wide angle lens exposes some of that blind spot.

Don&rsquo;t know yet. I have not gotten the product

Effin Awesome!!

ORDER PROCESS WAS EASY, HOPEFULLY PART WILL ARRIVE OVERNIGHT AS IT WAS PAID FOR.

We will see I guess

Easy experience. Thank you.

Worked for me.

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!

Ordering was easy and qiuick

Easy check out, products came super fast.

Good so far. Easy registration and login. Nice line of products.

They have hard-to-find items that ship immediately, excellent turn-around time on the orders. I look here first.

Item arrived as ordered and they had the lowest price!

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