I purchased a Toro #20056, 21" 6.5 hp with a Briggs engine on it. It decided to seize and bend the crank with oil still on the dipstick. Dealer said no warranty for that. Had dealer put a "rebuilt" engine on, it may run but it is a far cry from what it had been. it will does not even have enough power to fill the clippings bag but about 1/2 full. Also it now blows oil out of every crevice of the mower. Anyone with recomendations for going to Honda, Kawasaki or Kohler vertical shaft replacement engine please let me know. Good mower, should have bought any other brand with a good engine.