Yamaha - Anode Assembly Corrosion Protection Component 6P3-1240H-00-9S. Overview. If you run in saltwater or even brackish conditions, anodes aren't optional-they're your engine's first line of defense. I've pulled motors apart where everything looked good except the anodes were completely gone, and corrosion had already started setting in. When this part is doing its job, it sacrifices itself so your expensive components don't have to. It's one of the simplest ways to protect your investment on the water.. Key Features. • Sacrificial Corrosion Protection - Designed to absorb electrolysis and protect critical engine components.• OEM Fit and Placement - Matches factory mounting points for proper coverage and effectiveness.• Marine-Grade Material - Built to perform in saltwater and harsh marine environments.• Easy Replacement Design - Allows for straightforward inspection and routine maintenance.. Engine & Boat Compatibility. Designed for Yamaha outboard engines operating in saltwater or