Seal Kit Upper Gear Housing for Mercruiser R MR Alpha One 1991-prior 26-32511A1 Upper Gear Housing Seal Kit for a Mercruiser Sterndrive. Fits: R, MR and Alpha One from 1991 and older. br / This item replaces Mercury Marine Quicksilver original equipment part # 26-32511A1; GLM # 87500; Mallory # 9-74303; Sierra # 18-2648 Fits Applications (Click to View) Mercruiser Stern Drive Model Year HP Serial # Notes 470 1982 4893835 THRU 6225576 470 1981 4893835 THRU 6225576 470 1980 4893835 THRU 6225576 228 1978 4898730 THRU 6225576 260 1978 4898730 THRU 6225576 260 1979 4898730 THRU 6225576 228 1979 4898730 THRU 6225576 898 1978 4898730 THRU 6225576 470 1979 4893835 THRU 6225576 470 1978 4893835 THRU 6225576 120/140 1982 4893635 THRU 6225576 120/140 1981 4893635 THRU 6225576 120/140 1980 4893635 THRU 6225576 485 1978 4893835 UP 485 1979 4893835 UP 485 1982 4893835 UP 485 1981 4893835 UP 485 1980 4893835 UP 898 1979 4898730 THRU 6225576 228 1980 4898730 THRU 6225576 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1986 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1985 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1984 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1987 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1988 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1991 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1990 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1989 6216687 THRU 0D469858 R/MR/ALPHA ONE (TRANSOM ASSEMBLY) 1983 6216687 THRU 0D469858 898 1982 4898730 THRU 6225576 228 1981 4898730 THRU 6225576 898 1980 4898730 THRU 6225576 260 1980 4898730 THRU 6225576 260 1981 4898730 THRU 6225576 898 1981 4898730 THRU 6225576 260 1982 4898730 THRU 6225576 228 1982 4898730 THRU 6225576 120/140 1979 4893635 THRU 6225576 120/140 1978 4893635 THRU 6225576 ALPHA ONE SS 1991 ALL THRU NONE SSM II/III/IV/V 1991 ALL THRU NONE ALPHA ONE SS 1990 ALL THRU NONE SSM II/III/IV/V 1992 ALL THRU NONE ALPHA ONE SS 1992 ALL THRU NONE SSM II/III/IV/V 1994 ALL THRU NONE ALPHA ONE SS 1993 ALL THRU NONE SSM II/III/IV/V 1993 ALL THRU NONE SSM II/III/IV/V 1990 ALL THRU NONE ALPHA ONE SS 1989 ALL THRU NONE ALPHA ONE SS 1986 ALL THRU NONE SSM II/III/IV/V 1986 ALL THRU NONE ALPHA ONE SS 1985 ALL THRU NONE SSM II/III/IV/V 1987 ALL THRU NONE ALPHA ONE SS 1987 ALL THRU NONE SSM II/III/IV/V 1989 ALL THRU NONE ALPHA ONE SS 1988 ALL THRU NONE SSM II/III/IV/V 1988 ALL THRU NONE ALPHA ONE SS 1994 ALL THRU NONE R/MR/ALPHA ONE (STERNDRIVE) 1983 6225577 THRU 0D469858 SSM II/III/IV/V 1995 ALL THRU NONE SSM II/III/IV/V 1984 ALL THRU NONE SSM II/III/IV/V 1983 ALL THRU NONE 165 1978 4890460 UP 165 1979 4890460 UP 165 1982 4890460 UP 165 1981 4890460 UP 165 1980 4890460 UP SSM II/III/IV/V 1982 ALL THRU NONE R/MR/ALPHA ONE (STERNDRIVE) 1991 6225577 THRU 0D469858 R/MR/ALPHA ONE (STERNDRIVE) 1986 6225577 THRU 0D469858 R/MR/ALPHA ONE (STERNDRIVE) 1985 6225577 THRU 0D469858 R/MR/ALPHA ONE (STERNDRIVE) 1984 6225577 THRU 0D469858 R/MR/ALPHA ONE (STERNDRIVE) 1987 6225577 THRU 0D469858 R/MR/ALPHA ONE (STERNDRIVE) 1988 6225577 THRU 0D469858 R/MR/ALPHA ONE (STERNDRIVE) 1990 6225577 THRU 0D469858 R/MR/ALPHA ONE (STERNDRIVE) 1989 6225577 THRU 0D469858 SSM II/III/IV/V 1985 ALL THRU NONE Brand HP Model Year Cylinders Serial Number Part Notes About Us Basic Power and its staff want you to feel 100% confident in your purchases. 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