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

Just when I thought I would have to buy a whole new garage opener this worked great.

Never got to use it

My original gear and socket kit failed after 9 years. This one installed just fine and has been working smoothly for over a month. Total time of the repair was roughly 2 hours (including removing the old pieces). 2 tips: 1) An electric/battery operated screwdriver/drill with a long phillips head bit is incredibly helpful. 2) Be sure to correctly align the top metal piece (just above the gears) so that the chain guard that protects the sprocket/chain correctly fits. Getting this wrong caused me 20 minutes of rework.

Fits perfectly the 18 year old Craftsman 1/2 HP opener I have.

Everything was as sold. Completely satisfied

Good instructions

Perfect fit, worked right after install , and has been working for a few months now without any issues. For the price, its a great buy.

Worked great to convert a belt driven opener to an existing chain setup and door. Opener was free, so 25 dollars was not bad

I bought this to fix my garage door. I fixed it! And it works! Saved me hundreds of dollars.

Just the fix I needed. Resurrected my grandmothers garage door opener.