234-4851 2pcs 4 Wires Air Fuel Ratio Oxygen Sensor O2 Oxygen Sensor for Hyundai Elantra Kia Spectra Spectra5 234-5430 Z121 234-4851 2pcs 4 Wires Air Fuel Ratio Oxygen Sensor O2 Oxygen Sensor for Hyundai Elantra Kia Spectra Spectra5 234-5430 Z121. Sale price : $44.35 Category : Automobiles, Parts & Accessories