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Tecnoseal 20803MG Anode Kit for Mercury Bravo 1 Sterndrive with Hardware Magnesium

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

20803MG
06/13/2036 7:17 AM
Sale Price

$45.30

In Stock (7)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Tecnoseal 20803MG is a complete magnesium anode kit specifically designed for Mercury Bravo 1 sterndrive outdrives. This comprehensive kit provides complete corrosion protection for your sterndrive in freshwater and brackish water environments.

Kit Contents:

  • (1) 00815MG Trim Tab Anode
  • (1) 00820MG Gearhousing Anode
  • (1) 00828MG Torpedo Anode
  • (2) 00818MG Skeg Runner Anodes

Key Features:

  • Magnesium alloy construction for superior freshwater protection
  • All necessary mounting hardware included for complete installation
  • Direct OEM replacement fit for Mercury Bravo 1 outdrives
  • Prevents costly galvanic corrosion damage to sterndrive components
  • Manufactured to exceed OEM specifications

Tecnoseal anodes are precision-engineered using high-purity alloys that meet or exceed military and ASTM specifications. Regular anode replacement is essential preventive maintenance that protects your valuable sterndrive investment from electrolysis and galvanic corrosion.

Great Transaction Thanks

Fast shipping Thanks.

So good so far

Shopping was easy

user friendly great price

Great communication, super fast shipping, and product just as described. Very happy, thank you.

The absolute best price around by far for the Diablosport Intune. Order left Autoplicity within a day of ordering and they quickly provided an email with tracking number. This company is everything you would expect from a better known store except the inflated price.

AWESOME

Easy to find the part needed. Hope the remainder of the order, shipment, and delivery goes just as smoothly.

So far so good, quick. Hope you have the part !

good so far. received item on time, maybe even a little faster than I expected. the item was exactly as described, quality is good and exactly what I needed. it has been installed and works great. will do business with Autoplicity again. would definitely

easy to find what i needed and best prices on the internet.

Ordered a set of 5 steel wheels, distributor messed up and only sent me 4. 5th wheel is taking a good couple weeks to arrive due to the distributor messing up the shipment. Autoplicity did make things right and I can honestly say now I would recommend them.

Easy to navigate website, easy to find a fit for you vehicle.

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