I know that Johnson 25 hp powerheads can be swap across quite a few years 1990-2000. Does anyone know if they also fit years1989 and below 25 hp models? thanks for the input JJB
A place to start might be a comparison of bolt patterns. Gasket set 0433941 appears to fit motors from 1980 to 2005, for example, so you could expect to find the same bolt pattern on the powerheads.