Quantity 1 - 213-3866 AC Delco O2 Oxygen Sensor. Manufacturer: AC Delco. Part Type: Oxygen Sensor. 2013 Escalade (submodel: Hybrid, Hybrid Platinum) Left or Right Side, Before Catalytic Converter. 2013-2014 Escalade (submodel: Base, Luxury, Platinum, Premium) Left or Right Side, Before Catalytic Converter.
