For 1984-1990 MR/Alpha One Drives (s/n 6225577 – 0D469828)
Includes:
31640Q4 Trim Tab
55989Q9 Gimbal Bolt Anode (Qty 2)
821631Q1 Gimbal Housing Anode
EMP Aluminum anodes conform to Mil-Spec A-24779(SH)

also crosses with:
Canada Metals CMALPHAGEN1KITA
Performance Metals 10108A
GLM 12754
Technoseal KITALPHAONEGEN1AL
Reliance Alpha 1 Anode Kit