Aluminum
Fits MC-I, R, MR, Alpha and Bravo drives (s/n 0D469828 and below)
Priced individually, sold @ multiples of 2
Quicksilver Branded, Clamshell Package Point of Sale Packaged.

Part may not show prefix on packaging (97) but still is correct part

Aluminum
Fits MC-I, R, MR, Alpha and Bravo drives (s/n 0D469828 and below)
Priced individually, sold @ multiples of 2
Mercury Branded, Clamshell Package Point of Sale Packaged.

CM55989M - Magnesium Anode - for fresh water only. Not recommended for salt or brackish water. 
Attaches to the Alpha One gimbal housing's mounting bolts.
Also used by Key Power KP08 and KP10 bow thrusters (KP12-A-005).
Dimensions:...