Yamaha - Anode Corrosion Protection 6EK-11325-00-00. Overview. Anodes are one of those parts I always check first, especially on boats that live in the water. They're designed to take the hit so the rest of your motor doesn't corrode. I've seen engines stay in great shape just because the anodes were maintained properly. It's a simple piece, but it does a lot of heavy lifting behind the scenes.. Key Features. • Sacrificial Corrosion Protection - Draws corrosive activity away from critical engine components.• Extended Engine Life Support - Helps protect lower unit and internal parts from galvanic damage.• Marine-Grade Material - Built to perform in both freshwater and saltwater environments.• Easy Replacement Design - Simple to inspect and replace during routine maintenance.• Exact Yamaha Fitment - Designed to match factory mounting points and specifications.. Engine & Boat Compatibility. Designed for Yamaha outboard engines requiring an anode for corrosion protection. Commonly used acr