Compatible with chain drive units from liftmaster, chamberlain, craftsman, sears, master mechanic and Wayne Dalton. Compatible with 2245, 2255, 2265,, pd210, pd212, pd610, pd612k, 1200 series, 1240, 1245,, 1246, 1250,, 1255,, , 1256, 1260,, , 1265 and more. Not all models listed.
This kit 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. The 41C4220A assembly also includes the worm gear, and a new bushing under the sprocket which is another common wear item. Fits most chain drive openers manufactured since 1984 by: Liftmaster, Chamberlain, Sears Craftsman, Master Mechanic, and some units from Wayne Dalton.
Also fits openers labeled under various names such as: Sears Craftsman, True Value, Master Mechanic, and some units from Wayne Dalton. Liftmaster also "private labeled" openers for regional suppliers and dealers - usually it is very easy to see that it is a Liftmaster opener with a different name on the cover. Compare your parts to the picture above. The Large Gear is 2 3/4" x 1/2" wide, with a 1/2" bore. The worm gear is 1 1/8" OD, and the teeth are 1 1/4" wide (all sizes are approximate).
Includes: Gear and sprocket, worm gear, grease, motor shaft bearings, sprocket bearings, instructions
Compatible with chain drive chamberlain sears craftsman manufactured operators 1984-current
Compatible with chamberlain, sears, craftsman and lift master 1/3 and 1/2 HP chain drive models
Verified 100% authentic OEM lift master product- new production dates
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