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41A2817 LiftMaster Chamberlain Sears Craftsman Replacement Gear Kit w/lube


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  • Lubriplate Low Temp Specialty Grease 1 3/4oz. Tube
  • 41A2817 LiftMaster Drive Gear only
  • 41C4220A Gear and sprocket kit Liftmaster

If your Garage Door Opener is a 1/2hp or 1/3hp chain drive model produced from 1984 to present and manufactured by: LiftMaster, Chamberlain, Sears,Craftsman, Master Mechanic, True Value, Wayne Dalton and others this kit will be compatible. This is a great inexpensive and easy way to refurbish your chain drive door opener. Always disconnect the power supply first and carefully follow instruction guide.

Manufacture production date will be located on the back of the operator motor head. For maximum performance, the entire door assembly must be properly balanced, adjusted and lubricated for smooth operation. Door should open manually with reasonable effort. Low temp lubricant must be applied or the gear will shred (low temp lube is included with this kit)

This is a manufacturer-approved drive and worm gear kit (part number 41A2817) is for garage door openers.

Drive and worm gear kit 41A2817 contains the gears and related parts that spin the sprocket to drive the chain and move the door.

Shut off the electrical power before installing this part. Wear work gloves to protect your hands.

This small drive gear replacement kit 41A2817 is for all Chamberlain Group chain and belt drive openers manufactured from 1984 to the present. Also used for Wayne Dalton opener models 100 - 320.

Compatible replacement for Chamberlain Drive Gear part number 81B0045

Also compatible with the following garage door openers:

  • Sears Item# SPM3274613402
  • Model# 41A2817-CA Chamberlain replacement number 081B0045 
  • Lift-Master Sears Craftsman Chamberlain Master Mechanic Garage Master

Repair Instructions detail: (click) 41A2817 Drive Gear Worm Gear Replacement 41C4220A

Please contact us prior to purchase if you are unsure about compatibility

Write Review

  1. Next time I would- 5 Star Review

    Posted by on Jan 18th 2018

    Good price, works good and fit, but next time I would order the complete gear and spocket assy.

  2. A quality fix for a quality product 5 Star Review

    Posted by on Jan 14th 2018

    Open Door Discount Remotes made the repair of my Liftmaster easy and stress free. From the search of the parts I needed to the installation, I didn't find but one issue with my experience and that was my old eyes couldn't read the included Install Instructions. Even that was an easy fix with the downloadable set of instructions.

  3. Garage door opener working again 5 Star Review

    Posted by on Sep 14th 2017

    Sears Craftsman 1/2 HP chain driven garage door opener manufactured 1995. Drive gears that this item replaces were literally chewed up when garage door got jammed. Parts took less than a week to arrive and installation took approximately two hours because I took my time and familiarized myself with the unit which I just inherited with my "new" house.

  4. 5 Stars all the way!!! 5 Star Review

    Posted by on Aug 20th 2017

    The parts arrived quickly (4 days) and included everything I needed (gears and associated parts)to get my 26 year old Craftsman garage door opener running like new. Identical replacement parts of high quality. Good instructions too! Many thanks!

  5. Great Repair Kit - Great Price 5 Star Review

    Posted by on Aug 7th 2017

    Order arrived very fast and the gear was mostly all we needed to replace (along with using some of the grease included and the pin that holds the gear in place).

    Garage door opener works again! One suggestion would be to NOT just offer a roll pin to keep the gear in place but a plastic clip? Almost impossible to remove and insert unless you have a special tool. We had to use a hacksaw to get the gear off and then tap out the roll pin. That was the worst part of the job.

  6. OEM factory parts kit for your craftsman opener 5 Star Review

    Posted by on Aug 2nd 2017

    this kit has everything you need. I skeptical of the quality of parts at first but once I received the kit, the parts are OEM, not some cheap knock off.

  7. Perfect 5 Star Review

    Posted by on Jul 12th 2017

    This did the trick, and came with well-written instructions in English.

  8. Worked Great on my old Craftsman opener 5 Star Review

    Posted by on Jul 11th 2017

    Great price. Fast shipping. Easy install. I only needed to replace the planetary gear, not the worm gear, so the install only took about 15 minutes..

  9. Fast and friendly 5 Star Review

    Posted by on Apr 14th 2017

    Perfect fit. Quick shipping.