I just replaced my push mower last week. It is 12 years old. The only reason that I replaced it is because I was faced with a transmission replacement as well as engine power loss problems. I probably could have handled putting the new transmission in but just didn't want to go down the road of a possible engine rebuild. I expect to get at least 12 years out of the new one, although it has more "gadgets" that can nickel and dime me after it gets a few years on it.