Model Compatibility: Fits Optima K5 model years 2011, 2012, 2013, 2014, and 2015 as a rear trunk door lock latch actuator motor replacement. Part Number Match: Directly replaces part numbers 81230-2T001 and 812302T001 for rear trunk door lock latch actuator motor function. Application Specificity: Designed for rear trunk door, tailgate, or boot lock latch actuation on the specified Optima K5 vehicles. Functional Equivalence: Restores locking and unlocking of the rear trunk door without altering design or function characteristics. Installation Purpose: Serves as a direct-fit replacement actuator motor to maintain factory-intended rear trunk door lock latch functionality., Manufacturer: Forgekael