power door lock Note: does not include mounting screws 2) 1/4 x 20 1/2" long button head screws are required
For use with Liftmaster 3800, 3900, 3950, 8500 operators
** See 841lm for use on 8550w,8587w,8360w openers
power door lock Note: does not include mounting screws 2) 1/4 x 20 1/2" long button head screws are required
For use with Liftmaster 3800, 3900, 3950, 8500 operators
** See 841lm for use on 8550w,8587w,8360w openers