Button Anode – Aluminum Used on Yamaha outboards: 40hp (1985-1987), 50hp (1984-1987), 70-90hp (1984-1987) Honda 40-90hp Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and…Continue readingPerformance Metals Button Anode – Aluminum [00128A]