LiftMaster 041A5021-1I Receiver Logic Board
Receiver Logic Board, 390MHz
041A5021-1i is a 1 piece logic board with end panel, used on 390Mhz Security+ standard AC chain drive operators made from 1997 to 2005. Unit will have a red/orange learn button. Check the manual or parts BOM for your specific model number before ordering to ensure compatibility.