DRIVE MOTOR-REAR. Q8. 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 EGR Valve Temperature Sensor and it's mounting surface. A round Ring used to Seal between the Radiator Hose and it's mounting surface. An o-Ring used to prevent a leak at the Drive Motor Battery Pack Coolant Hose. Engine Coolant Temperature Sensor O-Ring. Location-Coolant Hose. Location-Cylinder Head. Location-Engine. Location-Engine Block. Location-Engine Cylinder Head. Part cannot be reused/reinstalled. switch o -. Drive Motor Battery Pack Hose O -. Engine O -. Exhaust Gas Recirculation (EGR) Valve O -. Hose AND tube Assembly o -. Radiator Hose O -. Water pipe o -. Included with: Cooler Assembly, EGR Cooler, Heat exchanger, Hose & tube Assembly, Lower Hose, Lower Hose Part cannot be reused/reinstalled, Radiator, Temp Sensor, Temperature Sensor, Temperture Sensor.