I'm looking for replacement parts for my mower, but I can't seem to find a parts diagram to know I'm getting the right parts for my model. On the back of my model is "PR550Y22R3" and "961420140 01". Searching for PR550Y22R3, I can find a lot of places selling the mower (all out of stock), but no parts or parts diagram. I get the same thing searching for 961420140. One thing I did find is that the Pouplan website lists part # 961420140 as being PR550N22RH3:
I have located the exact parts diagram for your mower but it is buried inside of a dealer only site. It is the exact diagram for the PR550Y22R3-96142014001 2016 mower.
What parts are you exactly looking for and I may be able to post the part numbers of what you need.