Yamaha - Anode Corrosion Protection 6G8-11325-00-00. Overview. Corrosion is one of those things every outboard owner eventually deals with, especially if the boat spends time in saltwater or brackish conditions. The Yamaha 6G8-11325-00-00 Anode is designed to sacrifice itself so critical internal engine components stay protected. These small parts quietly handle electrolysis inside the cooling passages and powerhead areas where corrosion can start. Replacing worn anodes during routine service he