"My serial # is 0920050005532. Is this a 2006 model?"
Your model is actually a 2005 model. The first 6 digits of the serial number mean Sep 20, 2005 as the date of manufacture. I would check Sears Parts and use your model # to look at a parts list to verify the belt you need. I have seen cases where the sticker info under the hood was different than the parts list online. Good luck!
- Adam