RECEIVER LOGIC BOARD, AC CHAIN
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041AC050-1M is a 315MHz Security+® Receiver Logic Board with End Panel Replacement Kit. For use with various 1/2 HP LiftMaster® and Chamberlain® AC Chain Drive Garage Door Openers; manufactured 2005 to 2015 only. The unit will feature a purple learn button. Check the owner's manual or replacement parts diagram for specific part information before ordering to ensure compatibility.