AF Sensor, Air-Fuel Sensor, AFR Sensor, Oxygen Sensor, O2 Sensor, Wideband Sensor. Walker Products: 350-64005, Bosch: 15169, Saab: 32010412, NTK: 24696, Subaru: 22641AA36A, ACDelco: 213-3941. Delphi: ES10942, Walker Products: 250-54027, Delphi: ES10943, Bosch: 15171, Subaru: 22641AA360.
