Sierra 18-2622 MerCruiser Alpha Bell Housing Bushing Kit Replaces 805041A2This Sierra bell housing bushing kit is designed for use with MerCruiser Alpha One Gen I & II drives.Application Info: Fits MerCruiser Alpha One Gen I drives from 1983-1991 with serial numbers 06225577 thru 0D469858; Fits MerCruiser Alpha One Gen II drives from 1990-1995 with serial numbers 0D469859 thru 0F679999; Interchangeable with: GLM; 87561; Mallory; 9-72161; Mercruiser Stern Drive; 23-805041A2; 23-79373A1; 23-79373; 23-45588;