Rareelectrical Upper Gear Housing Seal Kit Compatible with 1964-1990 Mercruiser I Mc-I R Mr Alpha One Gen I Ssm Sterndrive Replaces 26-32511A 32511B1 18-2648

MERCRUISER MC-I / R / MR / ALPHA ONE GEN I UPPER HOUSING: MerCruiser MC-I Sterndrive (serial 3106717-6225576, 1971-1982) MerCruiser R / MR Sterndrive (serial 6225577-0D469858, 1983-1990) MerCruiser Alpha One Gen I Sterndrive (serial 6225577-0D469858, 1983-1990) MerCruiser Alpha One SS Sterndrive (1986-1989, all serial numbers) MerCruiser I / IA / IB / IC & EZ Shift (serial 1684188+, 1964-1977) MerCruiser SSM II / III / IV / V (1982-1995, all serial numbers) OEM PART NUMBERS: Mercury/MerCruiser: 26-32511A1 / 26-32511A / 26-32511B1 / 32511B1 Sierra: S18-2648 / 18-2648 | GLM: 87500 | Mallory: 9-74303 UPPER GEAR HOUSING SEAL KIT — MerCruiser MC-I / R / MR / Alpha One Gen I 1964-1990: Complete upper drive shaft housing seal kit for all MerCruiser R, MR, and Alpha One Gen I sterndrives (serial numbers through 0D469858). Replaces 26-32511A1, S18-2648, GLM 87500. ⚠️ IMPORTANT: For pre-1991 (Gen I) upper housing ONLY. Verify serial number before ordering.

• Compatible with Mercruiser. Please verify your OEM part number from your original unit to help ensure fitment.
• Replaces: Oem Part Numbers: / Mercury/Mercruiser: 26-32511A1 / 26-32511A / Mercury/Mercruiser: 26-32511B1 / 32511B1 / Sierra: S18-2648 / 18-2648 / Glm: 87500 / Mallory: 9-74303 / / Specifications: / Product Type: Upper Gear Housing Seal Kit / Application: Mercruiser Mc-I / R / Mr / Alpha One Gen I Upper Drive Shaft Housing / Serial Number Range: 1684188 Through 0D469858 (1964-1990) / Drive Types: I, Ia/Ib/Ic, Ez Shift, Mc-I, R, Mr, Alpha One, Alpha One Ss, Ssm /
• Applications: Mercruiser Mc-I / R / Mr / Alpha One Gen I — Upper Gear Housing: / Mercruiser I / Ia / Ib / Ic & Ez Shift Sterndrive (Serial 1684188+, 1964-1977) / Mercruiser Mc-I Sterndrive (Serial 3106717-6225576, 1971-1982) / Mercruiser R Sterndrive (Serial 6225577+, 1983-1990) / Mercruiser Mr Sterndrive (Serial 6225577+, 1983-1990) / Mercruiser Alpha One Gen I Sterndrive (Serial 6225577-0D469858, 1983-1990) / Mercruiser Alpha One Ss Sterndrive (1986-1989, All Serial Numbers)
• Applications: Numbers) / Mercruiser Ssm Ii / Iii / Iv / V Sterndrive (1982-1995, All Serial Numbers) / / Specific Mercruiser Engine/Drive Combinations: / Mercruiser 120 / 140 (Serial 4893635-6225576, 1978-1982) / Mercruiser 165 (Serial 4890460+, 1978-1981) / Mercruiser 228 / 260 / 898 (Serial 4898730-6225576, 1978-1982) / Mercruiser 470 / 485 (Serial 4893835+, 1978-1982)...
• Upper Unit Seal Kit Source: Aftermarket