Liftmaster K21-40074 Power Transformer
Liftmaster K21-40074 Transformer
This is a replacement transformer (120/13.5V, 100VA, 60HV). For use with various LiftMaster® gate operators. Also known as Liftmaster part numbers: 9589, 21-40074
Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Genuine LiftMaster® replacement part.