Tecnoseal Side Power Anode

The Tecnoseal Side Power Anode is a zinc replacement anode engineered for Sleipner side power thruster systems operating in saltwater environments. Designed for marine operators who rely on bow and stern thrusters for precision maneuvering, this anode protects critical thruster components from galvanic corrosion—a natural electrochemical process that degrades metal in conductive saltwater. By sacrificing itself instead of the thruster's internal hardware, this compact anode extends equipment life and prevents costly repairs or premature thruster failure.

Constructed from high-purity zinc, the Tecnoseal Side Power Anode works through cathodic protection—the anode's galvanic potential is lower than the thruster's steel and bronze components, causing it to corrode preferentially while leaving the thruster intact. Weighing just 0.3 pounds and measuring 2 × 1 × 2 inches, this anode fits compact thruster housings without adding significant weight or drag. Tecnoseal's formulation ensures consistent discharge rates in saltwater applications, delivering reliable protection across a range of water temperatures and salinity levels that typical freshwater anodes cannot withstand.

This Side Power Anode is compatible with Sleipner SP55S, SE60, SP75T, SE80, SP95T, SE100, SR100, SX80, SX100, SH100, SP65S, and 7 HP thruster models. Marine technicians and boat owners operating in coastal or ocean environments should inspect and replace the anode annually or whenever it shows significant pitting or erosion—typically every 12 to 24 months depending on usage and water conditions. Note that mounting hardware is not included; verify your thruster model before ordering to ensure correct fit.