MerCruiser 43-92319 43-92320 Pinion Reverse Gear Alpha 1 70-82 Lower Unit Pulley 1972 1973 1974 1975 1976

1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984   70hp 75hp  75742S 75743S 75ELR77S 75ER77S 70773S 70EL77S Electric Start

also note the hex distributor shaft that goes into the oil pump

generally 1994-2004 Oil injected 2-stroke 2-Cylinder 30hp & 40hp outboards that that had the little window on the cowling to see the oil level in the tanks

3hp 4423 (1947-1951) Which I think was also similar or the same to model 4424 which also covered years of 1947

very clean oil pan

MerCruiser 43-92319 43-92320 Pinion Reverse Gear Alpha 1 70-82 Lower Unit Pulley 1972 1973 1974 1975 1976Item Details MerCruiser Sterndrive Alpha One Lower Unit Gearset Pinion & Reverse Only Pinion Gear: 43 92319 Reverse Gear: 43 92320 Used but Decent set of gears Applicaton & Compatibility Used in MerCruiser MC 1, #1, "R Drive" lower units 1970 1982 (If your driveshaft HAS A PRELOAD PIN then these are the correct parts, if your's does NOT have a preload pin, then these are NOT the correct gears) The time period 1970 1982 should be the time period that