Yes sir, it certainly is! Once you get your model number and type located you can do a search on engine specs by model number also. And... once you get there you'll find they have a parts break down by group, typically the first 4 digits of the model number followed by 2 zeroes.
i.e. The 441577 Model engine falls in the 441500 model group. Complete parts break down in .pdf file for that model group is available on the site, as are most of them.
Definitely a keeper!!