1.5 LITER. LEFT SIDE. 19.6 x 3.65mm. A circular disk covered in rubber or plastic with a hole in the center where the edge is sometimes tensioned by a spRing that prevents fluid from leaking at the Engine Coolant Temperature Sensor. A round Ring used to Seal between the Radiator Hose and it's mounting surface. All Required. Engine Coolant Pipe Seal. Engine Coolant Temperature Sensor O-Ring. From 06/14/2010. Location-Engine. Location-Radiator Coolant Hose. Location-Radiator Hose. Location-Water Coupling. Location-Water Hose. Location-Water Pipe. O-Ring used on the Engine Oil Cooler Line. O-Ring. Part cannot be reused/reinstalled. Part inclued with Water pump assembly. Included with: Connector Pipe, Connector tube, Coolant Hose, Coupling, Coupling body, Hose assembly, Inlet Hose, Inlet tube Part cannot be reused/reinstalled, Lower Coupling, Lower Hose, Lower Hose Part cannot be reused/reinstalled, Outlet Hose, Outlet Pipe Part cannot be reused/reinstalled, Pipe, Pipe assembly, Return Hose, T-piece, Temp Sensor, Temperature Sensor, Tube, Upper Coupling, Upper Hose, Water Inlet Pipe, Water Inlet tube, Water Pipe, Water pump, Water pump assembly.