Collection: Anodes

Sacrificial anodes protect underwater metals from galvanic corrosion, and choosing the right material is the first decision. Zinc anodes from Tecnoseal and VETUS are the standard for saltwater use. Aluminum anodes work across both brackish and saltwater and are often preferred for their wider effective range. Magnesium, available in Tecnoseal's flat trim plate line for Mercury Alpha drives, is the correct choice for freshwater, where zinc passivates and loses effectiveness. Using the wrong material for your water type can leave drive components underprotected.

Fit is the next consideration. Tecnoseal covers trim plates for Mercury Alpha drives, split collar anodes for Volvo Penta saildrives, trim tabs for Yamaha outboards in specific horsepower classes, and bar anodes for engine brackets. Quick, VETUS, and Performance Metals extend the range to bow thruster propeller kits, external hull plate anodes, and further drivetrain fitments. Before buying, confirm engine brand, model, and horsepower, and check whether the anode seats with integrated inserts or separate fasteners. Matching those details to the product listing before purchase will prevent a return trip.