Whenever I go to lookup parts I get a bunch of numbers that I don't see what they correlate to. For example when I go to Husqvarna's site and put in 359 it gives me like 12 choices that range from 20031400001-20041800000 to 20031400001-20041800000. I'm not sure I'm reading the data tag from the saw right. Here is a pic of the tag: