REC. ANODE BENETEAU 40mm

Function and technical context

Sacrificial anodes are the key component of the cathodic protection system on boats, acting as an electrochemical shield against galvanic corrosion that affects hulls, shafts, propellers and other submerged metal elements. This replacement anode for Beneteau 40 mm is integrated directly into the protection points provided by the manufacturer, ensuring that electrolytic corrosion attacks the anode instead of the structural and mechanical parts of the boat. Its correct installation is especially critical in ports with high electrical activity or in saltwater navigation, where galvanic corrosion is considerably accelerated and can compromise the integrity of the hull and appendages in a matter of months.

When to replace this part?

The clearest sign that an anode needs immediate replacement is when it has lost more than 50% of its mass: it appears visually worn, with irregular edges, a whitish color, or a severely eroded surface. It is recommended to inspect the anodes at least once a season—ideally at the annual beaching—and replace them preventively when wear exceeds that threshold, without waiting for them to disappear completely. Replacing the anode in time is the most economical and simple measure to avoid serious damage to the shaft, propeller or hull of your Beneteau, the repair of which can involve costs much higher than the price of this component.

Compatibility table