Trunk Lock Actuator Motor. This part generally fits Kia vehicles and includes models such as Optima with the trims of EX Sedan 4-Door,LX Sedan 4-Door,SE Seda n 4-Door. The engine types may include 2.4L 2351CC l4 GAS DOHC Naturally Aspirated,2.7L 2656CC V6 GAS DOHC Naturally Aspirated.