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

Perfect! Fixed my own door via watching a YouTube video.

Worked great easy to install

Still works more than 1 year

Easy to install

Came fast and is the perfect part! Fixed a friends when he didnt think it could be!

By replacing my broken gears with this, I was able to save the cost of a new garage opener. Now my opener works like it did when new. Perfect.

Parts came fast and fit well ! Question ? Why is gear plastic ? (engineered to fail ?) Also back screw in gear removal so difficult to get out what if it went from outside top down ? All things considered it still saved me a bunch of money for very little of my time. It is working just a well and one I had previously paid to have installed by profession serviceman at considerable expense.

Fits perfectly. Easily installed. Saved us from having to buy a whole new garage door opener.

I watched an 11 minute video on YouTube and felt confident enough to install in myself. Definitely saved me a few hundreds bucks since I didn’t have to replace the entire unit.

Perfect. Mine had a worn out bushing right below the sprocket. A few you tube video and the job was done in 1 hour.