Mercury - Aluminum Anode Kit Bravo II / Bravo III Series Corrosion Protection 888761K01. Overview. Anyone who's owned a sterndrive for more than a season knows that corrosion isn't something you notice right away - it creeps in quietly. One day everything looks perfect, and the next haul-out reveals pitting where you least expected it. That's why having the right anodes in place brings such peace of mind. The Mercury Marine part number 888761K01 Aluminum Anode Kit gives you that sense of steady