Yamaha - Anode Corrosion Protection 62Y-11325-00-00. Overview. Corrosion protection is one of those maintenance items that quietly keeps a Yamaha outboard healthy for the long haul. The Yamaha 62Y-11325-00-00 Anode is designed to act as a sacrificial metal that attracts electrolysis before it can damage critical engine components. In saltwater or brackish environments especially, these anodes slowly wear away while protecting internal parts of the cooling system and powerhead. Replacing them per