Our cool running Thermostat Kit reduces the operating temperature of your modified 4-TEC® engine by 30°F for maximum reliability and performance. Kit includes replacement thermostat, billet coolant inlet flange, stock thermostat removal tool, Oetiker® clamps, Oetiker® pliers and detailed installation instructions. Fits all 255, 215, 185, 155 and 130 horsepower 4-TEC engines.
NOTE: Thermostat housing (shown above) not included. Replacement coolant sold separately.