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This genuine LiftMaster® 41C4220A heavy duty gear and 8 tooth sprocket assembly works with most Sears Craftsman, Chamberlain, or LiftMaster® chain drive electric garage door openers manufactured from 1984 to present and comes complete with the following: 8 tooth chain sprocket & shaft, with main drive gear attached, spring and thrust washer, replacement bronze bushings, stop collar & set screws, retaining ring, bearing plate, 2 roll pins, worm gear, helical gear with retainer, grease and instructions.
This is a genuine LiftMaster OEM part.
Drive Gear Bore Size: 1/2"
Drive Gear Outside Diameter: 2 3/4"
Drive Gear Number of Teeth: 32
**Please note that the 3 holes in the top bearing plate are not intended to have threads tapped. You will need to re-use the 3 self tapping screws from your old gear to cut the new threads.
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Features
This Genuine LiftMaster®/Sears Craftsman/Chamberlain OEM heavy duty gear and sprocket assembly is the preferred and most economical way to fix your garage door opener. It quickly replaces all of the common wear parts in the opener drive system. This replacement gear and sprocket assembly is for ALL 1984-current garage door chain operated openers. Repair gear sets for openers made before 1984 are no longer available.
This is a DIY project that can be done in an afternoon and save you a couple hundred dollars over a new opener. Click here to read our How To Article with pictures and step-by-step instructions how to replace your garage door opener mail drive gear/sprocket.
Compatible with ALL fail safe units from LiftMaster®, Chamberlain, Sears Craftsman, Master Mechanic and Wayne Dalton.
Specifically compatible with the following LiftMaster® garage door opener LM models:
**Please Note; your model # does NOT begin with 41Axxxx, that is the p/n for the motor control board, please check the opposite end of the opener under the light cover.
1040, 1045,1050, 1055, 1060, 100WD, 200WD, 300 WD, 1140, 1145, 1150, 1155, 1160, 110WD, 210WD, 310WD, 1240, 1245, , 1250, 1255, 1256, 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 and 7420. Not all models listed. NOT for opener models 2575, 2595, PD752 and PD758S.
Fits chain drive models only! If you have a belt drive garage door opener you must use replacement gear kits 41A4885-2 or 41A4885-5.
Compatible with most all Sears Craftsman chain drive garage door opener models that include:
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. If
you don't see your Sears Craftsman garage door opener model listed
here, please click here for our Sears Craftsman Garage Door Opener Gear
Compatibility Chart. If you still don't see your model listed here, please email us and we will let you know which gear is compatible with your opener.
Compatible with the following 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 and 7420.
Also works with the following opener models (not all models may be listed):
- Ultra 2595RGD
- Navigator 2245RGD
-
Access Master model: M385
- Raynor Pilot 2265RGD
- Master Mechanic models: 601MM, 621MM and 622MM
- Do It models: 4500DIDM and 4500DI-2DM
- Master Mechanic 601MM, 621MM and 622MM
- Do It Models: 4500DIDM and 4500DI-SDM
- Wayne Dalton; 100WD, 110WD, 115WD, 200WD, 210WD, 220WD, 300WD, 310WD, 315WD, 320WD, WD100, WD110, WD115, WD200, WD210, WD220, WD300, WD310, WD320. Replaces old part number 41A2827. Access Master model: M385
Includes: One (1) LiftMaster® heavy duty gear and
sprocket assembly kit (with all parts pictured above), installation
instructions (also see our link below for installation instructions),
and one year manufacturer warranty. Price includes USPS Priority Mail 2-3 Day Expedited Shipping!
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