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Tecnoseal 21104AL Yamaha Outboard Anode Kit 200-250 HP Aluminum

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

21104AL
06/01/2036 6:40 AM
Sale Price

$33.76

2 left at this price

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Usually delivered within 2 days

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Product Details

The Tecnoseal 21104AL is a complete aluminum anode kit specifically designed for Yamaha 200-250 HP outboard motors. This kit provides essential corrosion protection for your outboard's lower unit and other critical underwater components in saltwater and brackish water environments.

Kit Contents:

  • One (1) 01112AL anode
  • One (1) 01124AL anode
  • All necessary mounting hardware included

Material: Aluminum alloy - ideal for saltwater and brackish water applications. Aluminum anodes offer excellent protection in higher conductivity environments and are the most commonly used anode material for outboard motors in coastal waters.

Why Replace Your Anodes: Sacrificial anodes protect your engine's expensive metal components from galvanic corrosion by corroding preferentially. Regular inspection and replacement of anodes is critical preventive maintenance that extends the life of your outboard motor. Replace anodes when they have corroded to 50% of their original size.

This kit comes conveniently packaged in a polybag with all mounting hardware included for easy installation. Tecnoseal is a trusted manufacturer of marine corrosion protection products, known for producing high-quality anodes that meet or exceed OEM specifications.

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