145 Degree Thermostat Kit | Sierra 18-3662 145 degree thermostat kit used on early model Volvo Penta raw water cooled marine engines. Fits Volvo Penta AQ175 engines from 1981 to 1985 Fits Volvo Penta AQ205A engines from 1988 to 1989 Fits Volvo Penta AQ211A engines from 1986 to 1989 Fits Volvo Penta AQ200A/B and AQ225A/B engines from 1974 to 1976 Fits Volvo Penta 430A/B and 431A/B engines from 1990 to 1991 Fits Volvo Penta 432A and 434A engines from 1992 to 1993 Kit includes 145 degree thermostat and housing gaskets Replaces Volvo Penta 875794, 876305 Replaces Mallory 9-43004