Liftmaster 41c4220a Gear and Sprocket Kit for Chamberlain, Sears, Craftsman and LiftMaster 1/3 and 1/2 HP Chain Drive Models

Cheap Chinese knockoff. Do not buy from 365 garage door parts. False advertising.

Seem to be like the original. Took about an hour to change the main sprocket out. Saved me from getting and installing a new garage door opener.

Perfect fit and performant

Great product. Fixed my garage door for peanuts vs buying a new one.

The product was easy to install and the results was comparable to a professional repair job !!

Super !

Prompt shipping and easy to Install

Installed and worked perfectly in my M55 Liftmaster. Easy to adjust door travel to seal when it closes. Would recommend to anyone with good handyman and electronic skills. Saved me over $300.00 installing this part myself.

Saved me over 150.00 by doing myself over getting dealer to do it. Quick delivery.

Worked very well to fix my garage door opener. Price was very reasonable.