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Gear Sprocket Kit 1/3-1/2HP Liftmaster Sears Craftsman Garage Door Opener Part

Complete kit includes: Helical gear and top hat assembly, worm gear, wear bushings, grease, and

hardware needed to replace the chain drive gears.

Our Chain Drive Gear and Sprocket Kit is a complete chain drive gear and sprocket replacement

Compatible 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.

Replacement Gear and Sprocket assembly compatible with chain drive LiftMaster, Chamberlain Brand Sears Craftsman, Master Mechanic and Wayne Dalton garage door openers 1984 thru current
Compatible with LiftMaster Chamberlain garage door opener models 1040, 1045,1050, 1055, 1060, 100WD, 200WD, 300 WD, 1140, 1145, 1150, 1155, 1160, 110WD, 210WD, 310WD, 1240, 1245, , 1250, 1255, 1260, 1260LK, 1245LK, 215WD, 220ED, 315WD, 320WD, 1240R, 1245R, 1255R, 1265, 985, 2265, 2565, 2245, 2255, 140, 150, 240, 350, 450, 550, 700WHC, 1000, 2000, 4000, 5000, 710WHC, 1100, 2100, 4100, 5100, 7200, 1200, 2200, 4200, 6200, 7220, CG40, PD210, PD610, PD612K, 7420
Partial list of Craftsman 139.xxx models that this kit would work for:
139.18847 139.18857 139.53225SRT 139.53225SRT1 139.53325SRT 139.53325SRT1
139.53335SRT3 139.53425SRT 139.53425SRT1 139.53525SRT 139.53535SRT1 139.53627SRT
139.53628SRT 139.53628SRT1 139.53629SRT 139.53629SRT1 139.53635SRT 139.53635SRT1
139.53636SRT 139.53637SRT 139.53637SRT1 139.53640SRT 139.53641SRT 139.53644SRT
139.53645SRT3 139.53646SRT2 139.53647SRT1 139.5364812 139.53648D 139.53648SRT2
139.53650SRT 139.53660SRT1 139.53661SRT1 139.53661SRT3 139.53662SRT 139.53662SRT1
139.53662SRT2 139.53670SRT 139.53670SRT1 139.53671SRT 139.53671SRT1 139.53671SRT2
139.53671SRT3 139.53672SRT1 139.53672SRT2 139.53672SRT3 139.53673SRT 139.53673SRT1
139.53673SRT2 139.53673SRT3 139.53674SRT1 139.53674SRT2 139.53675SRT 139.53675SRT1
139.53675SRT2 139.53677SRT 139.53677SRT1 139.53677SRT2 139.53677SRT3 139.53824SRT
139.53824SRT1 139.53834SRT3 139.53901DM 139.53903DM 139.53905DM 139.53910
139.53910D 139.53920D 139.53920DM 139.53930D 139.53930DM 139.539511
139.53959SRT 139.53960SRT 139.53962SRT 139.53970SRT 139.53971SRT 139.53973SRT
139.53974 139.53975SRT 139.53975SRT1 139.53976SRT 139.53977SRT 139.53978SRT
139.53982SRT 139.53985 139.5398511 139.53985D 139.53985DM 139.53989
139.53995SRT