RUDDER ANODE 679-45371-00

Function and technical context

The rudder anode is a cathodic sacrificial component installed in the rudder structure that protects against electrolytic corrosion in saltwater environments. This element works within the boat's cathodic protection system, where it acts by absorbing corrosion that would otherwise attack the base metal of the rudder and its accessories. When the rudder is submerged in salt water, electrochemical potentials are generated that corrode metals; The sacrificial anode oxidizes in a controlled manner, thus protecting the structural integrity of the rudder and preventing perforations, weakening of welds and failures in the steering system.

When to replace this part?

The wear of the rudder anode is manifested by a visible reduction in its volume, accelerated surface oxidation and, in advanced cases, the appearance of corrosion on the rudder itself or its anchoring points. It is recommended to inspect the condition of the anode at each seasonal maintenance check and replace it when it has lost more than 50% of its material, regardless of the time elapsed, since the rate of degradation depends on the salinity, water temperature and electrochemical activity of the navigation area. Preventative replacement is especially critical before intensive sailing seasons, preventing insufficient protection from causing costly damage to the rudder structure that can compromise the boat's maneuverability.

Equivalent manufacturer part numbers