3.4. 3.8 LITER. PRIMARY W/GT3. A round Ring used to Seal between the Radiator Hose and it's mounting surface. All Required. Front Left Radiator. Front Right Radiator. HVAC Heater Control Valve O-Ring. Left Radiator. O-Ring. Part cannot be reused/reinstalled. Radiator Coolant Hose Seal. Right Radiator. AND tube Assembly o -. Connector o -. Coupling o -. Engine Coolant Pipe O -. HVAC Heater Control Valve O -. Inlet o -. Radiator Coolant O -. Return Pipe o -. Water Assembly o -.