Description
Compatiblity: Work with chain drive chamberlain sears craftsman manufactured operators 1984-current and lift master 1/3 and 1/2 HP chain drive models Kit Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings Easy DIY- Complete Assembly: This kit 041c4220a includes all of the 41A2817 Drive / Worm Gear kit, and is easier to install because you do not have to disassemble the output shaft assembly - the spur gear is already mounted on the new output shaft Safe and Reliable: Achieve low noise and smooth door opening