I know this is not a chainsaw but is close and some parts are shared with chainsaws. This saw is not very old and is just how I found it. I hate cleaning off the concrete so if you don't mind here it is for $100 plus actual shipping. At that price fixing is a good option or if you have to part it out it should still make you some money. I am pretty sure on the model number but not positive. Look at the pictures. The piston does not look to bad. No guarantees with these parts but any questions will be answered. Mike