2.0 LITER GAS. CZRA. Elbow o-ring. ENGINE CODE. Sedan/Wagon. A round Ring used to Seal between the Air Intake Duct and it's mounting surface. Mass Air Flow Sensor O-Ring. Part serviced with Intake pipe. pipe. Adapter o -. Elbow o -. Engine Hose O -. Mass Flow O -. Included with: Adapter, Elbow, Intake pipe.