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Garage Door Gear Replacement

After years of use and normal wear and tear it is common to need to replace your gears and sprockets. Always in stock at www.liftmasterpartsonline.com, the gear kit you need is available and shipped quickly. Our 41A2817 Drive / Worm Gear Kit fits many brands and models of garage doors manufactured in 1984 or later, including over two dozen Chamberlain and Liftmaster models and several others such as True Value and Master Mechanic. The gears in the kit are sold as a set to make sure the gears fit together properly for long life.

Help Finding Opener Model #: <Click Here>

If you can't find your opener model number listed below, please see the link above (you may have your logic board model number like 41A4252-XX, 41A5021-XX are logic board model numbers).

41C4220A Gear and Sprocket Assembly:

The 41C4220A Gear and Sprocket Assembly is the preferred way to "refurbish" your garage door opener as it quickly replaces all of the common wear parts in the opener drive system. This kit includes all of the 41A2817 Drive / Worm Gear kit, and is easier to install because you do not have to disassemble the output shaft assembly - the spur gear is already mounted on the new output shaft. The 41C4220A assembly also includes the worm gear, and a new bushing under the sprocket which is another common wear item. Fits most chain drive openers manufactured since 1984 by: Liftmaster, Chamberlain, Sears Craftsman, Master Mechanic, and some units from Wayne Dalton. Replaces part 41A2827. Gears are not available for openers manufactured prior to 1984. Instructions are included in the package.

Fits these Liftmaster Models: 985, 1040, 1045, 1055, 1140, 1160, 1240, 1240R, 1245, 1245R, 1245LM, 1250, 1255, 1255R, 1260, 1260LM, 1265, 1265LM, 215WD, 220WD, 315WD, 320WD, 1345, 2245, 2255, 2265, 2565, 3245, 3255, 3265. Do not use for openers with dual sprockets on the output shaft.

Fits these Chamberlain Models: 1100, 1200, 2100, 2200, 4100, 4200, CG40, CG40D, CG42D, PD100, PD200, PD210, PD210D, PD212, PD212D, PD600, PD610, PD610D, PD612KLD, PD612K, 5100, 6200, 7200, 7220, 7320, 7420, 7520D, 4893OD, HD200D. Do not use for openers with dual sprockets on the output shaft.

Fits these Sears Craftsman Models: (and more)
139.18847 139.53661SRT1 139.953325SRT 139.953628SRT1 139.953646SRT2 139.953670SRT1 139.953673SRT3 139.953824SRT1 139.953962SRT 139.953985DM
139.18857 139.53673SRT2 139.953325SRT 139.953629SRT 139.953647SRT1 139.953671SRT 139.953674SRT1 139.953834SRT3 139.953970SRT 139.953995SRT
139.5364812 139.53903DM 139.953325SRT1 139.953629SRT1 139.953648D 139.953671SRT1 139.953674SRT2 139.953901DM 139.953971SRT
139.53910 139.53976SRT 139.953335SRT3 139.953635SRT1 139.953648SRT2 139.953671SRT2 139.953675SRT1 139.953905DM 139.953973SRT
139.539511 139.953225SRT 139.953425SRT 139.953636SRT 139.953650SRT 139.953671SRT3 139.953675SRT2 139.953910D 139.953975SRT
139.53974 139.953225SRT1 139.953425SRT1 139.953637SRT 139.953660SRT1 139.953672SRT1 139.953677SRT 139.953920DM 139.953975SRT1
139.5398511 139.953325SRT 139.953525SRT 139.953640SRT 139.953661SRT3 139.953672SRT2 139.953677SRT1 139.953930D 139.953977SRT
139.53989 139.953325SRT 139.953535SRT1 139.953641SRT 139.953662SRT 139.953672SRT3 139.953677SRT2 139.953930DM 139.953978SRT
139.53635SRT 139.953325SRT 139.953627SRT 139.953644SRT 139.953662SRT1 139.953673SRT 139.953677SRT3 139.953959SRT 139.953982SRT
139.53661SRT1 139.953325SRT 139.953628SRT 139.953645SRT3 139.953670SRT 139.953673SRT1 139.953824SRT 139.953960SRT 139.953985D

Note: Also fits openers labeled under various names such as: Sears Craftsman, True Value, Master Mechanic, and some units from Wayne Dalton. Liftmaster also "private labeled" openers for regional suppliers and dealers - usually it is very easy to see that it is a Liftmaster opener with a different name on the cover. Compare your parts to the picture above. The Large Gear is 2 3/4" x 1/2" wide, with a 1/2" bore. The worm gear is 1 1/8" OD, and the teeth are 1 1/4" wide (all sizes are approximate).

Click Here - to download installation instructions for this product.

This is one of our most popular items and is always kept in Stock !

Part Number

Description

Price

41C4220A 41C4220A Gear and Sprocket Assembly
$21.99
* SALE *

41A2817 Drive / Worm Gear Kit:

Drive/Worm Gear Kit 41A2817. The kit comes with Spur and worm gears, grease, bushings, pins, washers, and retaining rings / clips. Some vendors are selling cheap "knock off" Spur gears on the internet - Liftmaster only distributes their gears as a set. If you only replace the large spur gear it will only last a short time as it will not mesh properly with the worn worm gear. Always replace both gears together and lubricate them with the supplied grease. Gears are not available for openers manufactured prior to 1984. Installation instructions are included by the manufacturer.

Fits these Liftmaster Models: 985, 1040, 1045, 1055, 1140, 1160, 1240, 1240R, 1245, 1245R, 1245LM, 1246, 1246R, 1250, 1255, 1255R, 1256, 1256R, 1260, 1260LM, 1265, 1270, 1280, 1280R, 1345, 1346, 1356, 215WD, 220WD, 2245, 2255, 2265, 2565, 2280, 2575, 2580, 2585, 2595, 315WD, 320WD, 3245, 3255, 3265, 3280, 3575, 3585, 3595, ATS211, ATS211R, ATS211X, ATS2113X.

Fits these Chamberlain Models: 1100, 1200, 2100, 2200, 4100, 4200, 4893OD, 5100, 6200, 710WHC, 711WHC, 7200, 7220, 7320, 7420, 7520D, 8100, 8100M, 8200, 9200, CG40, CG40D, CG42D, CSO, HD200D, HD600, PD100, PD200, PD210, PD210D, PD212, PD212D, PD600, PD610, PD610D, PD612K, PD612KLD, PD752, PD752D, PD758D, PD758S, WD822K, WD822KD, WD822KS, WD912K, WD912KS, WD922K.

Note: Also fits openers labeled under various names such as: Sears Craftsman, True Value, Master Mechanic, and some units from Wayne Dalton. Liftmaster also "private labeled" openers for regional suppliers and dealers - usually it is very easy to see that it is a Liftmaster opener with a different name on the cover. Compare your parts to the picture above. The Large Gear is 2 3/4" x 1/2" wide, with a 1/2" bore. The worm gear is 1 1/8" OD, and the teeth are 1 1/4" wide (all sizes are approximate).

Click Here - to download installation instructions for this product.

This is one of our most popular items and is always kept in Stock !

Part Number

Description

Price

41A2817 Drive/Worm Gear Kit 41A2817

$18.99

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