Thermostat Johnson/Evinrude: Replaces #393659. 143o thermostat. Fits the following engines: H.P. Years H.P. Years 9.9, 15 1974-86 90 1981-94 20 1981-94 100 1979-80, 1984-94 25 1969-94 110 1989-90 28 1989-97 115,140 1978-84, 1990-94 30 1986-94 140 1977-84 50 1971-75, 1979, 1981-86 150 1979-91 55 1976-92 155 1984-92 60 1980-86 175 1977-91 85 1978-80, 1991-94 185 1984 88 1989-94 200 1976-83 235 1978-84