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

Great replacement part for my Craftsman door opener

The instruction is easy to follow. The parts fit perfectly without any modification. The gear set is installed for over a week now. Everything is working as expected.

It was an exact replacement for the gear and shaft that I needed to fix my garage door. The parts seemed identical to the OEM part that was in the opener. The only reason I gave this 4 stars instead of 5 was because I could see someone having a little bit of difficulty with the directions. There are no pictures / diagrams. If you read the directions and just look at the unit you are able to put 2 and 2 together with just a little bit of common sense, but I could see some being confused by just using those directions. I had no issues with the install and was able to take the unit apart, replace the part, and have it closed up and running in just over 2 hours (I certainly wasnt rushing - but Id allow about 2 - 2.5 hours for the repair). The cost of the part certainly justified my time rather than replace the entire garage door opener!

Instructions are decent but our existing Liftmaster opener was somewhere in between the two types listed in the instructions. A little improvising and assumption needed, but all un assembled and reassembled well. Works good too. One thing to watch out for is make sure the top-most ring around that bearing is aligned to the screw holes properly such that the top plastic piece dust cover will snap back in properly. Did take about five hours to install, but I’m inexperienced and it was very hot here. Plus I’m a perfectionist :)

Assemble well and still working at 6 months of use.

Great replacement part.

easy to install. works like a champ!

Great kit. Got me up and running again.

Excellent product delivered timely. Probably saved $400 in repair bill

If like a charm