ACDelco: 213-2951, Walker Products: 350-64037, Subaru: 22641AA33A, Delphi: ES10943, Subaru: 22641AA150. AF Sensor, Air-Fuel Sensor, AFR Sensor, Oxygen Sensor, O2 Sensor, Wideband Sensor. Bosch: 15636, Walker Products: 250-5406, Standard Ignition: SG1858, Bosch: 15930, Saab: 32005979, Subaru: 22641AA13B.
