Let's have a little fun here. What model saw is this piston for?

Let's have a little fun here. What model saw is this piston for?
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281 - 13mm pin
PS9000
046/460 - 12mm pin
064 - 12mm pin
038 Mag - 12mm pin
051 - 13mm pin
Not a 7900![]()
Now how did you figure that out?...LOL
That circlip style I have seen on some Huskys. Brad woulda close the windows its gettin drafty in here! Wow those are wide open!