MerCruiser SEI SE106 91-104-01AK 1.94 4cyl 20-24 3.0L Upper Gear Set Aftermarket Lower Unit 1968 1969 1970 1971 1972

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985

470 370 170 165hp 3

OMC Equivalent Part numbers:

25-822408001

The pins are the same dimension-wise the only difference is that it took the greasable needle bearing lower pin bushing rather than the nylon one

MerCruiser SEI SE106 91-104-01AK 1.94 4cyl 20-24 3.0L Upper Gear Set Aftermarket Lower Unit 1968 1969 1970 1971 1972Part Number(s) Included SEI 91 104 01AK Upper Gear Set (1. 94 (1. 98) Ratio 20 teeth: 24 teeth) (OEM 43 55778A3) 91 104 01A 91 104 02A SEI 92 102 02 Upper Drive Shaft (OEM 45 55796) SEI Bearings & other parts as pictured SEI SE106 Lower Unit Parts Diagram (PDF) SEI SE106 Upper Unit Parts Diagram (PDF) General Application Compatibility These were removed from an actual Sterndrive Engineering SEI SE106 gearcase which is the replacement for MerCruiser