To Suit Alpha I Generation II 1991 (and later) Stern Drives. Serial nos OD469829 and up.

This kit is the same as the standard Alpha I Generation II Aluminium Anode Kit except that the CDA-21 (Genuine P/n 31640) is substituted for the CDA9-25 (Genuine P/n 76214-5) flat rib tab with threaded hole.

Cast to Australian Standard AS2239 Z1 and US Mil Spec 18001K chemical composition

For use in salt and brackish water only.