PN#181928  SKU#15273  Engine Coolant Thermostat Kit. Gasket Included. 180 F Opening Temperature. For Cummins ISC / QSC 8.3 Liter Application. The PAI engine coolant thermostat kit offers a practical, high-quality solution to replacing the engine thermostat. Gasket Or Seal Included: Yes. Opening Temperature: 82 CE. Opening Temperature: 180 FA. Opening Temperature (c): 82. Opening Temperature (f): 180. Country of Origin (Primary): USA.