Yamaha - Engine Anode Corrosion Protection 6AW-1132N-01-00. Overview. If you run Yamaha engines in saltwater, you already know corrosion protection is part of the game. The Yamaha Anode 6AW-1132N-01-00 is designed to sacrifice itself so the important engine components don't have to. It pulls corrosive activity away from metal surfaces inside the engine system and keeps electrolysis from eating away at critical parts. It's one of those small maintenance pieces that quietly protects your motor eve