Replacement : OEM P/N: 379475/777130 Sierra P/N: 18-3086 Shaft(mm): 19.2 Dia(mm): 107.5 Height(mm): 25.2 Blade: 6 Weight(g): 100 Fits: The impeller replaces part number 379475 and 777130, Impeller for all 4 cyl, 6 cyl and 8 cyl OMC 800 series stringer mount stern drives from 1962 - 1985 185 hp 1979-1980 185hp 4 stroke 8 cylinders 200 hp 1979-1981 200hp 4 stroke 8 cylinders 230 hp 1979-1981 230hp 4 stroke 8 cylinders 2.3 liter 1987-1989 4 stroke 2.3 liters 4 cylinders 250 hp 1979-1979 250hp 4 stroke 8 cylinders 2.5 liter 1986-1986 4 stroke 2.5 liters 4 cylinders 260 hp 1979-1981 260hp 4 stroke 8 cylinders 350 hp 1989-1989 350hp 4 stroke 5.7 liters 8 cylinders 3.8 liter 1981-1982 4 stroke 3.8 liters 6 cylinders 3 liter 1986-1993 4 stroke 3 liters 4 cylinders 4.3 liter 1986-1993 4 stroke 4.3 liters 6 cylinders 5.7 liter 1982-1992 4 stroke 5.7 liters 8 cylinders 5.8 liter 1989-1993 4 stroke 5.8 liters 8 cylinders 5 liter 1982-1993 4 stroke 5 liters 8 cylinders 7.4 liter 1990-1991 4 stroke 7.4 liters 8 cylinders 7.5 liter 1987-1990 4 stroke 7.5 liters 8 cylinders