1 ? LiftMaster compatible gear with grease same as gear in repair kit: 41A2817 & 41C4220A 

 2?we can provide detailed instruction on how to replace the film. For ENVIRONMENT PROTECTION, we send this manual via email.

Details: 

If your operator ?runs? when you press the button, but the door won?t open, this is likely the part that needs replacing.

This is the replacement gear only. You will need to provide gear grease. [Important: failure to grease, will result in the gear stripping out again]

Drive Gear Bore Size: 1/2"

Drive Gear Outside Diameter: 2 3/4"

Drive Gear Number of Teeth: 32

Works with: 

 LIFTMASTER, CHAMBERLAIN, CRAFTSMAN, SEARS, MASTER MECHANIC AND WAYNE DALTON garage door operators.

Compatible  with: 

1984  current Liftmaster, Craftsman chain drive and belt drive operators including the following: Chamberlain, Sears, Craftsman  , Garage master, Access master, Master Mechanic, Security +, Estate series, Raynor, Formula I, Whisper drive, Power Drive, Billion Code garage door opener models

 Compatible with these model: 

  LiftMaster, Chamberlain CHAIN DRIVE garage door opener models:          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

Compatible with these belt drive models:

1280, 1280R,  2580, 2585, 8100, 8100M, 8200, 9200,  WD922K, WD912KS, WD822KS

 Fits over 170 Craftsman garage door openers, including the following models: 

13918315SR, 13918415SR, 13918616SR, 13918847, 13918857, 13918869, 13918880, 13953100, 139531006, 13953110, 13953200, 139532006, 13953210, 13953225SRT, 13953225SRT1, 13953300, 139533006, 13953310, 13953315SR, 13953325, 13953325SRT,

13953325SRT1, 13953335SRT3, 13953400, 13953403, 13953413, 13953415SR, 13953425, 13953425SRT, 13953425SRT1, 13953500, 139535006, 13953513, 13953515SR, 13953525, 13953525SRT, 13953535SRT1, 13953600, 139536006, 13953602,

13953603, 139536036, 13953605, 13953606, 13953607, 13953608, 13953609, 13953610, 13953611, 13953612, 13953613, 139536141SR, 13953614SR, 139536151SR, 13953615SR, 139536181SR, 13953618SR, 139536191SR, 13953619SR, 13953622, 139536251SR,

13953625SR, 139536261SR, 13953626SR, 13953627SRT, 13953628SRT, 13953628SRT1, 13953629SRT, 13953629SRT1, 13953632SR, 13953635SRT, 13953635SRT1, 13953636SRT, 13953637SRT, 13953637SRT1, 13953638SRT, 13953639SR, 13953640SRT,

13953641SRT, 13953644SRT, 13953645SRT3, 13953646SRT2, 13953647SRT1, 1395364812, 13953648D, 13953648SRT2, 13953650SRT, 13953651SR, 13953660SRT1, 13953661SRT1, 13953661SRT3, 13953662SRT, 13953662SRT1, 13953662SRT2,

13953664SRT, 13953664SRT2, 13953669SRT, 13953670SRT, 13953670SRT1, 13953671SRT, 13953671SRT1, 13953671SRT2, 13953671SRT3, 13953672SRT1, 13953672SRT2, 13953672SRT3, 13953673SRT, 13953673SRT1, 13953673SRT2, 13953673SRT3,

13953674SRT1, 13953674SRT2, 13953675SRT, 13953675SRT1, 13953675SRT2, 13953677SRT, 13953677SRT1, 13953677SRT2, 13953677SRT3, 13953678SRT, 13953699SR, 139538000SRT1,13953800SRT, 13953800SRT1, 13953824SRT, 13953824SRT1,

13953834SRT3, 13953901DM, 13953903DM, 13953904D, 13953905DM, 13953910, 13953910D, 13953913SRT, 13953914, 13953914D, 13953914SRT, 13953915D, 13953915SRT, 13953916D, 13953920D, 13953920DM, 13953930D, 13953930DM, 139539511,

13953954, 13953959SRT, 

Not all models listed, please email us to check compatibility if you?re unsure.