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The drive gear has shredded and I need a new one. It is a 1991 Chamberlain 1/2 HP Heavy Duty Model 5000. I cannot find the manual to explain what the part is to replace it.

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Hi and welcome to FixYa, I am Kelly

The manual can be found here:
http://homeappliance.manualsonline.com/manuals/mfg/chamberlain/5000.html

This is usually the parts that fail:
http://www.wholesalegaragedoorparts.com/Gear_Kits.htm

PN: 41A2817 For the worm gear drive parts
PN: 41A2827 For the Sprocket and Gear Drive assembly that includes the worm drive.

Chamberlan customer support phone: (800) 528-5880
Thanks for choosing FixYa,
Kelly

Posted on Mar 23, 2011

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