I have needed one of these for years and when someone threw the engine/fan in the scrap metal hopper at the Cat dealership where I worked I couldn't resist the temptation to grab it. The engine had no compression and it turned out to be a stuck valve. After removing the head and cleaning everything it runs great. The body is almost all aluminum and the under carriage is steel with a widened MTD tractor front axle. The blower chute sides are made from excavator plexiglass windows, which is 1/4 in. or so thick and is tough stuff. It works great and will make the fall cleanup a lot easier.