ANODO COLLAR GORI 3P SAILDRIVE Ø15" (ZN)

Function and technical context

This zinc collar anode for GORI saildrive with 3 blades and 15" diameter is part of the cathodic protection system of the saildrive transmission, acting as an electrochemical sacrifice to protect submerged metal parts against galvanic corrosion. It is installed around the shaft or housing of the saildrive, creating a continuous protection barrier in the area of greatest exposure to salt or brackish water. Its correct operation is essential to preserve the structural integrity of the saildrive, since without adequate cathodic protection Corrosion can compromise the casing, shaft and internal components of the transmission, with serious consequences for navigation and very high-cost repairs. The REC9427 reference is specifically designed for GORI 3-blade folding propellers with a diameter of 15 inches, guaranteeing a precise fit and an optimal contact surface for galvanic protection.

When to replace this part?

Zinc anodes must be inspected at least once a season and replaced when they have lost between 50% and 75% of their mass, since below that threshold the cathodic protection is insufficient. Symptoms of a depleted or missing anode are pitting, surface erosion or discoloration of the saildrive housing, shaft and adjacent metal fittings. The professional recommendation is to replace all saildrive anodes at each annual grounding on a preventive basis, regardless of their apparent condition, to ensure complete protection throughout the sailing season and avoid costly transmission repairs.

Compatibility table