his is a replacement Brake Release Arm. For use with various LiftMaster® Commercial Door Operators. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.
Complete with: Clutch Plate Clutch Shaft Bearing 3/4' I.D. Sprocket 41B10x3/4' 5L Belt Motor Pulley Spring Clutch Disk Shim Washers Castle Nut Flatwashers Cotter Pin Roll Pins and Push on Fastener