045ACTMC is a 315MHz Security 2.0 Receiver Logic Board Replacement Kit. For use with various LiftMaster® and Chamberlain® AC Chain Drive and Belt Drive Garage Door Openers; manufactured after 2011 only. The unit will feature a yellow learn button. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.This part replaces the following legacy part #’s: 045ACTGenuine LiftMaster® replacement part.
