Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears, Craftsman and LiftMaster 1/3 and 1/2 HP Chain Drive Models
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.