Feature●This impeller replaces OE#: 0396809 and fits 40-48 HP 2 stroke and 50-75 HP 2 stroke (small housing) Evinrude Johnson outboard lower units from 1979-1988.Description This impeller replaces OE#: 0396809 and fits 40-48 HP 2 stroke and 50-75 HP 2 stroke (small housing) Evinrude Johnson outboard lower units from 1979-1988.