If you hit the garage door opener and the motor runs but the chain doesn?t turn and the door doesn?t open then this is likely what you?re looking for. Buy this nylon drive gear and install it yourself in 20 minutes.

The door opener manufacturers want to sell you a $40 repair kit containing parts you don?t need. The local overhead door repair shop wants to replace this gear and charge you $120-150 for parts and a service call.

You can do it yourself for $10 and 20 minutes of your time by buying this brand new American-made nylon replacement gear.

For directions on replacing the gear yourself, click the link below. You will need gear grease which is required during installation. An inexpensive small tube of all-weather lithium grease from your local hardware store is perfect. White lithium grease is best; it doesn?t solidify in the winter cold or melt in the summer heat. A small tube (1oz or 1.5 oz) is enough to cover the gear. Check our other items, we have the ideal size tubes of Permatex brand White Lithium Grease and it?s a lot cheaper than the big box stores.

Open this link for the simple instructions:

http://www.gdcorp.com/instructions/liftmaster/repair/GEAR2817.pdf

YOU MUST USE GREASE ON THE GEAR!!!

WITHOUT GREASE THE GEAR WILL QUICKLY STRIP AGAIN!!!

This gear is new and compatible with ALL chain-drive and belt-drive garage door openers from Liftmaster, Chamberlain, Craftsman, Sears, Master Mechanic, Wayne Dalton, Garage Master, Access Master, Security Plus, Estate Series, Raynor, Formula I, Whisper Drive, and Power Drive. This gear fits essentially any garage door opener manufactured since 1984.

This is the same nylon gear sold in Sears or Craftsman repair kits 41A2817 & 41C4220A.

Below is a partial list of compatible garage door openers:

Liftmaster, Chamberlain, Craftsman, Sears, Master Mechanic, Wayne Dalton belt drive models/series: 1140, 1145, 1146, 1150, 1155, 1156, 1160, 1200, 1240, 1245-266, 1246, 1250, 1250-266, 1255, 1255-166, 1255-266, 1256, 1260, 1260-166, 1260-266, 1265, 1265-267, 1270, 2245, 2255, 2265, 2265-267, 2280, 2280-267, 2280-976, 2580, PD210, PD212, PD610, PD612K, ATS211R, ATS211, WD822K, and many more.

Liftmaster or Chamberlain chain drive models/series: 1040, 1045, 1046, 1050, 1055, 1056, 1060, 100WD, 200WD, 300WD, 110WD, 210WD, 310WD,  1260LK, 1245LK, 215WD, 220ED, 315WD, 320WD, 1240R, 1245R, 1246R, 1255R, 1256R, 985, 2565, 2575, 2595, 140, 150, 240, 350, 450, 550, 700WHC, 701WHC, 1000, 2000, 4000, 4001, 5000, 710WHC, 711WHC, 1100, 2100, 4100, 5100, 7200, 1200, 2200, 4200, 6200, 7220, CG40, 7420, PD752, PD758S and many more.

Gear Specifications:

Drive Gear Bore Size: 1/2"

Drive Gear Outside Diameter: 2 3/4"

Drive Gear Number of Teeth: 32

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Will ship to lower 48 states & Canada.

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