KIPA Pack-3 Drive Gear for Sears Crafsman Liftmaster Chamberlain Garage Door Openers 1984 up, 41A2817 41C4220A 81B0045 Drive Gear, 32 Teeth, Bore Size 1/2", Durable

Worked great on my lift master ATS211 door opener.

I bought this to replace the worn out gear in my Sears belt driven garage door opener. Thankfully they came 3 in a pack because it doesn't come with lubricant so the first one I installed was destroyed within a week. You MUST lubricate this part with a quality lithium lubricant such as https://www.amazon.com/gp/product/B00283XW0C/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1I had to install another one and this time I made sure I used a good coating of the aforementioned lubricant. At the same time I lubricated the gear in my other opener. It is recommended you do this once a year, by the way. As for this part, it was a good fit and not a very difficult installation. You can find plenty of how to videos on youtube. To make it easier just mark the position of your chain or belt prior to removal so you can match it up upon reassembly. It will help save time because you won't have to make any major limit adjustments, if any at all.

Good quality, price was great, and it did the job. Still in place and working.

Fit well but not as sturdy as the original ones. Had to replace them pretty quick after installing but our pulley system may need realignment

Buen producto, los pedí para Ecuador y me indicaron que trabajan muy bien.

This gear fit perfectly on my LiftMaster 1/3 HP opener that was probably installed in 1999. I will say it is a pain to get the old gear off without a proper "punch" tool. That's not the fault of this product though, just be prepared to fight with wrestling the old gear off. Aside from that, install was a simple job. An extra set of hands was very helpful to getting the motor out of the housing while it was still installed, though you could always take the whole thing down if needed. It's only been installed for a short time, and I'll report back if there are any longevity/durability issues.

Had the parts in less than 24 hours and they worked perfect, saved replacing the entire garage door opener.

I have used these in craftsman and chamberlain and they seem to work fine. Much cheaper than buying a new opener but not too bad to install if you’re handy. If you pull the cover and you see very small plastic shavings this is the problem most of the time

Las ranuras en donde se asienta el pasador no están alineadas en ninguna de las tres piezas. Fue necesario limar el material para que quedara. Está instalado y funcionando, habrá que ver con el tiempo durabilidad. Bueno precio y entrega rápida