The Toro Z420 is a zero-turn mower produced from 2005 to 2006 as part of the TimeCutter Z Series. It features a 16 hp Briggs & Stratton 465cc single-cylinder gasoline engine, hydrostatic transmission by Hydro-Gear with infinite forward and reverse speeds, and a 42-inch mid-mount mower deck with manual lift. The mower has two-wheel drive, power steering, and an open operator station. Tires are sized 10x4 front and 18x7.5 rear with a caster front axle. Electrical system includes a 12-volt battery with negative ground. The PTO is mid-mounted, independent, and electrically clutched. Original price was $3,199 in 2005.