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Tecnoseal 20804 Mercury Bravo 2-3 Anode Kit with Hardware Zinc

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

20804
06/01/2036 7:34 AM
Sale Price

$32.36

In Stock (9)

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Usually delivered within 2 days

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Product Details

The Tecnoseal 20804 is a complete zinc anode kit designed specifically for Mercury Bravo 2 and Bravo 3 stern drives. This comprehensive protection system includes four precision-engineered sacrificial anodes that safeguard your stern drive components from galvanic corrosion in saltwater and brackish water environments.

Complete Kit Contents:

  • One 00815 cavitation plate anode
  • One 00820 trim tab anode
  • Two 00818 propeller shaft anodes
  • All necessary mounting hardware for installation

Key Features:

  • Premium zinc alloy construction optimized for saltwater and brackish water use
  • Includes all mounting hardware for complete installation
  • Direct replacement for Mercury/MerCruiser OEM anode kits
  • Convenient polybag packaging for organized storage
  • Manufactured to stringent quality standards for reliable corrosion protection

Regular replacement of sacrificial anodes is essential maintenance that protects expensive stern drive components from destructive galvanic corrosion. Zinc anodes are the preferred choice for saltwater environments, while magnesium or aluminum versions are available for freshwater or brackish water applications.

Overall good. Item discription a little vague.

found what I was looking for fast .

Autoplicity had the exact part I needed for my boat when I accidentally left the key on all night. I was able to replace my electronic ignition module with confidence, knowing it was the same one I had before. Shipping was fast and the boat runs great again.

Easy transaction so far... Great seller.

I would love more pictures of actual product and on viechle

Very nice process!

Quick and easy

Amazing shipping speed!!!!! Best price on internet! Item arrived as described. Will do business again!

The site was very easy to shop and the prices are great compared to other sites. The item arrived much faster than expected. The only picture of the product on the website was not the actual product and was something totally different but the item descri

So far so good. Quick, easy. Live the amazon option

Great price!

Quick shipping, good communication, low price, would purchase again from this company.

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