Mercruiser Alpha I Gen II Magnesium Anode Kit | Martyr CMALPHAKITM Martyr anode kit includes all replacement anodes needed to protect Mercruiser Alpha Generation II stern drives from corrosion in fresh water lakes and rivers. Mercruiser Alpha I Gen II anode kit For Mercruiser Alpha I Gen II drives from 1991 to present Kit includes CM762145M trim tab anode, CM806105M bearing carrier anode, CM821629M housing plate, CM821631M gimbal block anode and (2) CM806189M trim cylinder anodes Magnesium anodes for use in fresh water applications Martyr anodes are made of a high purity specialized alloy based on the US Mil Spec Supplied with mounting hardware for anodes Replaces Mercruiser 97-888755Q03