Husqvarna YTH18542 18.5 HP Hydro Transmission Riding Lawn Mower, 42-Inch 18.5HP 540cc Briggs & Stratton Intek engine Hydrostatic transmission; lever operated drive method 42-Inch Steel Stamped Deck 2 Cutting Blades 15X6-6 inch front tires & 20X8-8 inch rear tires