chainsaw engine

Hello I'm having trouble finding an after market piston for and echo cs341. I don't have the saw physical in hand but I bought it online and am trying to get parts ordered before it arrives. Does anyone have a clue what size piston It is or what saws share the same piston?

Hi guys, I'm New on the forum, I'm an italian boy who's beginning to appreciate the world of arborists. Here I am with a little big issue: some months ago I was gifted a Husky 550xp MY '13 (one of the first ones, know they had some carb issues and other stuff) that wouldn't start. The old owner...