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Tecnoseal R4MG Rudder Anode Magnesium 5 Inch Diameter

Manufacturer

Tecnoseal

<p>Tecnoseal stands as a global leader in the manufacture of sacrificial anodes for cathodic protection, serving the marine, industrial, and offshore sectors with unmatched expertise. Based in Grosseto, Tuscany, this Italian manufacturer has built a reputation over three decades for producing the world's most comprehensive range of corrosion protection solutions. Understanding how galvanic corrosion affects metal components in harsh marine environments is essential for anyone maintaining boats, engines, or industrial equipment exposed to water.</p><h3>Precision Engineering and Italian Craftsmanship</h3><p>Operating from their own foundry facility, Tecnoseal manufactures zinc, aluminum, and magnesium anodes using certified alloy specifications that meet US Military Standards and DNV RP B401 requirements. The company's product catalog includes nearly 2,000 standard anodes and over 3,000 custom-manufactured items, making it the most extensive offering available worldwide. Each anode undergoes rigorous spectrometric testing—more than 6,000 analyses annually—to ensure consistent electrochemical performance and compliance with international standards. This attention to quality extends to critical engine components, including specialized protection for <a href="/11576-tecnoseal-engine-crankshaft-main-bearing-5220">engine crankshaft main bearings</a> and other vital powertrain elements.</p><h3>Cathodic Protection Technology</h3><p>Sacrificial anodes work by corroding preferentially to protect more valuable metals immersed in electrolytic solutions like seawater, brackish water, or freshwater. When properly installed, these anodes form a galvanic couple with the protected metal, providing electrons that prevent oxidation and metal loss. Tecnoseal's anodes protect hulls, propellers, shafts, rudders, trim tabs, and engine components across recreational boats, commercial vessels, and industrial installations. The company's Bi-Tee® zinc alloy represents a breakthrough in environmental sustainability—it's the only cadmium-free zinc anode certified to DNV standards, eliminating toxic pollutants while maintaining superior protective performance.</p><h3>Custom Solutions and Technical Support</h3><p>Beyond standard catalog products, Tecnoseal's engineering department designs hundreds of custom anode solutions annually for shipyards, engine manufacturers, and specialized industrial applications. Their technical team provides comprehensive consulting services, including cathodic protection system design, anode positioning optimization, and installation support. The company maintains offices in Italy, the United States, the United Kingdom, the Netherlands, and Spain, ensuring global availability and technical expertise. With 98% of catalog items stocked and ready for immediate shipment, Tecnoseal combines Italian manufacturing excellence with responsive logistics to meet urgent protection needs across marine and industrial markets.</p>

Part Number

R4MG
06/21/2036 9:24 AM
Sale Price

$47.96

2 left at this price

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Product Details

The Tecnoseal R4MG is a high-quality magnesium rudder anode designed to provide reliable corrosion protection for marine vessels. This full-size rudder anode protects your boat's rudder and steering components from galvanic corrosion in freshwater and brackish water environments where magnesium anodes are most effective.

Key Specifications:

  • Material: Magnesium alloy for superior protection in low-conductivity water
  • Outer Diameter: 5 inches
  • Height: 0.60 inches
  • Weight: 0.78 lbs

Features:

  • Full-size design provides extended service life and maximum protection
  • Includes stainless steel hex nut and socket cap screw for secure installation
  • Captive hex nut feature simplifies underwater installations and replacements
  • Precision-engineered to meet marine industry standards

Tecnoseal anodes are manufactured to strict quality standards, ensuring consistent performance and reliable protection for your vessel's critical components. Regular inspection and replacement of sacrificial anodes is essential for maintaining proper corrosion protection.

quick/easy

Thank you

great

Ordered some parts the other day and was impressed, will see if it was a fluke.

Very easy and convenient

Cheapest place I found for High Performance Rotors. :)

Great price! Hopefully it delivers quickly as expected.

Fast and easy !

easy to navigate

so far so good

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