2.0 LITER. Temp sensor retainer. A "C" shaped clip which helps to hold or retain the Engine Coolant Temperature Sensor. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Engine Coolant Temperature Sensor to it's mounting point. Engine Coolant Temperature Sensor Clip. Coolant Bolt. Coolant C -. Included with: Adapter, Outlet hose, Thermostat housing, Thermostat unit, Water outlet.