MerCruiser 470 170hp 3.7L 4cyl Starter Motor Assembly 50-72550A1 1973-82 9-Tooth Flywheel 9-Tooth Starter

9-Tooth Starter

I am not quite sure what it's from but KB4 & KD4 is my best guess at this time

but I don't see why not)

1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990

MerCruiser 470 170hp 3.7L 4cyl Starter Motor Assembly 50-72550A1 1973-82 9-Tooth Flywheel 9-Tooth StarterItem Details Removed from a 1976 1978 MerCruiser 470 Tested & Working Parts Included Starter Assembly 50 72550 50 72550A1 50 72550A2 9 Tooth Starter Prestolite MHA 7016 Compatibility Used only on EARLIER MerCruiser 470 Models using this type of starter. 1976 1982, but please check your serial number. The 1983 & beyond models used a significantly different looking starter. 1976 1977 1978 1979 1980 1981 1982 Alpha One 470 4 cyl 170hp 3. 7L 224CID