Tecnoseal Cavitation Plate Anode - Magnesium - Bravo

The Tecnoseal Cavitation Plate Anode – Magnesium – Bravo is essential corrosion protection for owners of Bravo-class mercury outboards and inboard/outboard drives. After decades on the water, any serious boater knows that saltwater and brackish environments eat through unprotected metal faster than you can say "haul-out." This magnesium anode sacrifices itself to galvanic corrosion, preserving your drive's aluminum housing, shaft, and internal components from the electrolytic damage that can compromise performance and lead to costly repairs.

Magnesium anodes are the industry standard for protecting Bravo drives because magnesium is more electronegative than aluminum and steel, making it the preferred sacrificial metal in seawater applications. The Tecnoseal Cavitation Plate Anode mounts directly on your Bravo's cavitation plate—the flat surface that shields the propeller hub—where it's constantly exposed to the corrosive marine environment. At 0.6 lbs and measuring 5 x 1 x 8 inches, this anode provides surface area where galvanic action occurs, drawing corrosive ions away from your drive's critical structures. Regular replacement every 1–2 seasons (depending on water salinity and boat usage) is the most cost-effective insurance against erosion, pitting, and structural failure.

This anode is engineered specifically for Bravo outboard and I/O drives, making it a direct fit with no modification required. Salt-water anglers, offshore cruisers, and anyone mooring in coastal waters should treat anode replacement as routine maintenance—just like an oil change. Tecnoseal's magnesium composition ensures reliable electrochemical performance in the harsh saltwater corrosion cycle, keeping your drive operating safely and preserving resale value. Inspect annually; when consumed to roughly 50% of original thickness, install a fresh unit to maintain full protection.