Marine Anodes & Corrosion Protection

Hull Protection & Propellers

Marine Anodes

Browse replacement marine anodes and anode kits for compatible drives and underwater hardware. Match the material and fitment to your boating conditions.

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Marine Anodes for Corrosion Protection

Marine anodes, also known as sacrificial anodes, help protect underwater metal components from galvanic corrosion, extending the service life of propellers, shafts, trim tabs, lower units, and other submerged equipment. Sacrificial anodes are designed to corrode preferentially, helping protect connected metal components from deterioration when properly selected and installed. CritPro carries quality replacement anodes for fresh, salt, and brackish water applications.

What to Look for in Marine Anodes

Select anodes based on water type, engine manufacturer, mounting location, material, and compatibility with your boat's underwater hardware. Zinc, aluminum, and magnesium anodes have different properties and suitability for various water conditions, so choosing the correct material is important for effective corrosion protection.

What This Category Covers

This category includes zinc anodes, aluminum anodes, magnesium anodes, shaft anodes, trim-tab anodes, engine anodes, and replacement hardware. These sacrificial anodes are available in different shapes, sizes, and mounting configurations to accommodate various marine applications.

Protect Your Boat

Pair your anodes with Boat Propellers, browse Propeller & Underwater Coatings, or explore our complete Hull Protection & Propellers department.

Browse our complete selection of Marine Anodes at CritPro.