Fitments: Hyundai Santa Fe Sport 2.0L 2013-2014 Hyundai Sonata 2.0L 2011-2014 Kia Optima 2.0L 2011-2015 Kia Sportage 2.0L 2011-2015 Product Introduction: A fuel injector is a device for atomizing and injecting fuel into an internal combustion engine. The injector atomizes the fuel and forces it directly into the combustion chamber at the precise point in the combustion cycle. .