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

works really well and was not that difficult to do

Save your original parts. Most of the kit worked just fine, but there were a couple smaller pieces that were different and did not work with my model. But overall the kit worked and garage door opener fixed.

Bought this as a replacement for worn gears in current opener. Within a few months of normal use these gears just shredded. Wasted time and money.

Perfect fit and good instructions

Product came as expected fits perfectly works great

Great price. Fast delivery

An exact replacement for our Liftmaster opener. Did the job.

Easy install great directions.would buy again

The gear already wore out again. I think I may just need a new opener period. May be just old and worn out.

Worked like a charm!!