Denso 4 Wire sensor Blk Sq
Four wire heated o2 sensor, made by DENSO VERY active, currently used on our Heated Oxygen Sensor Upgrade Kits. By design, high tolerance to impurities and additives in the fuel system, last considerably longer than non-heated sensors. Also more tolerant to lead poisoning, and gets your car into closed loop quicker. Order a spare today! For use in aftermarket kits only. Or when isolated grounded sensors are used!