Outboard Anodes

Provide the outboard brand and model and use year or serial where possible. Then identify the anode location, trim tab, plate, bracket, or other position. Match shape, thickness, and hole spacing, and confirm fixing type. If you have part numbers from diagrams, use them to validate. Photos of the old anode and the mounting point usually make it easier to confirm quickly when markings are missing.

If multiple anodes are part-worn, replacing them together can help keep protection consistent across the outboard. If you only replace one, the new anode can end up working harder while other anodes are already near the end of life. A practical approach is to replace any anode that is heavily wasted or damaged, then inspect the rest and plan a full set replacement at the next service interval.

Fast wear can be caused by unsuitable anode material for your environment, missing anodes elsewhere on the outboard, or electrical issues such as stray current in marina conditions. Confirm clean contact surfaces and tight fixings first. Then check that all expected anode locations are fitted. If rapid wear continues, inspect wiring, chargers, and shore power connections for corrosion or faults. Unusual wear is often a sign to investigate the wider setup.