Mercury - Mercruiser 26-823894 Seal - OilGenuine OEM Mercury - Mercruiser part.Application: Alpha One Gen II (1998 and up) - s/n #0L100040 & up; Alpha One Gen II - (1991 - 1995) - s/n #0D469859 thru 0F679999; Alpha One Gen II - (1996 - 1997) - s/n #0F680000 thru 0K999999; QS Alpha One - s/n #2A629407 & up; R/MR/Alpha One Sterndrive (1983 - 1990) - s/n #6225577 thru 0F386995; R/MR/Alpha One Transom Assembly (1983 - 1990) - s/n #6216687 thru 0F386995; Vazer Drive - s/n #0W995000 & up; Vazer Transom - s/n 0W755000 & up;