Tecnoseal Anode Kit w/Hardware - Mercury Bravo 3 2004-Present - Aluminum

The Tecnoseal Anode Kit w/Hardware for Mercury Bravo 3 2004-Present is an essential corrosion control system designed to protect your outboard motor's lower unit from saltwater and freshwater electrolysis damage. Sacrificial anodes are critical for any marine engine exposed to conductive water environments, where galvanic corrosion can rapidly degrade aluminum and steel components. This complete kit addresses the factory anode replacement schedule, ensuring your Bravo 3 sterndrive maintains structural integrity and operational longevity across thousands of operating hours.

Constructed entirely of high-grade aluminum, this anode kit leverages the electrochemical principle of galvanic sacrifice—the anodes corrode preferentially instead of the engine's critical aluminum castings and steel fasteners. The kit includes five individual anode components (one 00835AL, one 00820AL, two 00818AL, one 00836AL, and one 00815AL) strategically positioned throughout the Bravo 3 gearbox to intercept corrosion in high-risk zones. All necessary mounting hardware is included, allowing straightforward replacement during routine maintenance intervals. Aluminum composition ensures reliable performance in both salt and brackish water applications without compromising the protective properties that keep your lower unit functional.

Mercury Bravo 3 owners running in coastal or high-mineral-content freshwater environments benefit most from proactive anode replacement every 1–2 seasons, depending on water salinity and usage. Installation requires basic hand tools and familiarity with lower-unit fastener removal; most marine mechanics complete the job in under an hour. The lightweight package (3.2 lbs) ships in protective polybag packaging, and compatibility with Mercury Bravo 3 models from 2004 onwards makes this a direct bolt-on upgrade for any generation of this proven sterndrive platform.