816607 New Bellows Sleeve Ring for Mercrusier Alpha 1 Gen 2 1991 & up Sierra 18-
Manufacturer part #1 816607. for Alpha One (Gen II) 1998 and Up - s/n 0L100040 & Up. for Alpha One (Gen II) 1996-1997 - s/n 0F680000 thru 0K999999. for Alpha One (Gen II) 1991-1995 - s/n 0D469859 thru 0F679999.