I just purchased a 2005 Toro Z Master Model 74413 (leftover) with a 19hp Kawasaki Model # FH580V-AS29-R motor with only 4 hrs on it. The mower now has 10 hrs on it. I'm considering selling the motor from this mower and upgrading to a 23hp or 25hp. Nothing is wrong with this motor works great but I'm thinking of upgrading to a larger motor because I want to use the spindle mounted blower/bagger. Price: $800 PM me if you are interested. I'll post pics soon.