1970-1979 Mercury 45227 Spiral Forward lower unit Gear 24 teeth 20 HP Vintage (Mc)Part Description: 1970 1979 Mercury 45227 Spiral Forward Gear Assembly 24 teeth 20 HP Part Number(s): 45227 Model(s): 1970 1979 Mercury Condition Description: Used, in good condition Retail Price: Obsolete Part Details: Spiral Forward Gear Assembly bearing not included 24 teeth on gear This should fit: 1970 1020100 GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 2) 1972 1020202 GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 2) 1973 1200203 GEAR HOUSING ASSEMBLY,

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