GLM Part Number 87574 Lower Unit Gear Housing Seal Kit for Mercury & Mariner 4 Hp (1 Cylinder) (Serial Number 5589202 & Up) 1980 - 1986 4.5 Hp (1 Cylinder) (Serial Number 4107220 & Up) 1975 - 1985 7.5 Hp (Serial Number 4851693 & Up) 1978 - 1986 9.8 Hp (Serial Number 4839254 & Up) 1978 - 1985 Replaces Merc Part Number: 26-77066A1 Replaces Sierra Part Number: 18-2628 Included in Kit: Prop Shaft Seal (Replaces Merc Part #: 26-66022), Shift Shaft Seal (Replaces Merc Part #: 26-30696), Water Pump Base Seal (Replaces Merc Part #: 26-30900), Water Pump Base Seal (Replaces Merc Part #: 26-96063), Nylon Bushing (Replaces Merc Part #: 23-86214), O-Ring (Replaces Merc Part #: 25-62704), O-Ring (Replaces Merc Part #: 25-38933), O-Ring (Replaces Merc Part #: 25-29439), O-Ring (Replaces Merc Part #: 25-48171), O-Ring (Replaces Merc Part #: 25-30529), O-Ring (Replaces Merc Part #: 25-26802), Fill Screw Washer (Replaces Merc Part #: 12-20260), Fill Screw Washer (Replaces Merc Part #: 12-20262)
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