Protect against galvanic corrosion with anodes for every application. Applications include engine anodes, hull anodes, shaft anodes, rudder anodes and prop anodes. West Marine also stocks pencil anodes to protect water heaters. Choose zinc anodes for saltwater, aluminum anodes for brackish water or magnesium anodes for freshwater. Protect your inboard/outboard engine with a MerCruiser, Volvo Penta or a Yamaha anode kit. Shop Canada Metals Martyr anodes, Sea Shield anodes and aftermarket replacement anodes from Sierra.