Active Grille Shutter Replacement

Need to replace the AGS on my 2018 Pacifica (u11e9 code) but I can't seem to find the part. Quick google search shows either part number 68438679AC or 68312564AC - does anyone know which part is correct? I don't think the actual shutters are the problem, I'd imagine it's the motor for them but I'm not sure which part comes with the motor.