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Martyr Anodes CM40005875A Volvo Penta Trim Tab Anode

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

CM40005875A
09/12/2036 7:41 PM
Sale Price

$79.26

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 CM40005875A is a precision-engineered sacrificial anode designed specifically for Volvo Penta outdrives and stern drives. This essential marine component protects your valuable drive components from galvanic corrosion by corroding preferentially, extending the life of your propulsion system.

Key Features:

  • Direct replacement for Volvo Penta part number 40005875
  • Mounts to trim tab area of outdrive assembly
  • Available in multiple alloy options for different water conditions
  • Precision cast to OEM specifications for proper fit
  • Easy installation with included hardware

Material Selection Guide:

  • Aluminum alloy: Recommended for salt and brackish water applications
  • Magnesium alloy: Best performance in fresh water environments
  • Zinc alloy: Traditional choice for salt water use

Important Installation Note: Always verify adequate propeller clearance after installing new trim tab anodes to ensure safe operation and prevent contact during drive articulation.

Regular inspection and replacement of sacrificial anodes is critical preventive maintenance that protects expensive drive components from costly corrosion damage. Martyr Anodes are manufactured to meet or exceed OEM specifications, providing reliable corrosion protection for your marine investment.

Products specifications

Description

IPS Drive Transom Bar

Material

Alum.

They had great email communication and shipped my items from order number 14199 very quickly. I was very impressed with how they handled my order.

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Good seller. Prompt email on ordering information. Fast shipping.

Fast service

This was an excellent transaction! I ordered parts on Sunday and they arrived tuesday afternoon. Low price, no fuss and super fast. Thanks Autoplicity..........

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Great Seller. Fast Shipping and great prices!

What a great find! These people are very helpful and their prices are better than 4 wheel parts! The only thing I wish was improved was the handling time to be less than 4 days for 1 item, but other than that, I'm happy.

Good

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