Tecnoseal X9 Shaft Anode - Zinc - 2" Shaft Diameter

The Tecnoseal X9 Shaft Anode in zinc is a corrosion-prevention component engineered for marine propulsion systems, particularly inboard and outboard motors with 2" diameter shafts. This sacrificial anode protects expensive drivetrain components by corroding preferentially to steel and aluminum parts, extending the operational life of your vessel's propulsion system. Zinc anodes are the industry standard for saltwater and brackish environments where galvanic corrosion poses a continuous threat to engine blocks, shaft sleeves, and transmission housings.

Constructed from marine-grade zinc, the Tecnoseal X9 features a 3.02" outer diameter and 3.25" height, accommodating standard 2" shaft bores with four fastening holes for secure mounting. The compact cylindrical design allows straightforward installation while maximizing surface area for effective electron exchange in the galvanic cell. Zinc's lower electrochemical potential ensures it sacrifices itself rather than base metals, a proven technology in saltwater service where dissimilar metals create corrosion potential. The unit's 2.5 lb weight provides adequate mass for extended service intervals between replacement cycles, typical of professional marine maintenance schedules.

Marine operators and boat technicians rely on shaft anodes to protect transmission systems and lower units during seasonal or year-round saltwater operation. Installation involves securing the anode onto the shaft using the four mounting holes and fasteners, positioning it where water circulation ensures continuous galvanic protection. Replacement should occur when anode material shows 50% consumption or annually in heavy-use saltwater environments. The Tecnoseal X9 is compatible with standard inboard motor installations and shaft designs using 2" diameter specifications.