The Simplicity 606 is a riding lawn mower produced from 1964 to 1967 as part of the Wonder Boy Series. It features a 6 hp Briggs & Stratton 231cc 1-cylinder gasoline engine, a 2-speed belt-driven gear transmission with 2 forward and 1 reverse gears, and two-wheel drive with manual steering. The mower was built in Port Washington, Wisconsin, USA, and originally sold for $463 in 1967. It has front tires sized 11x4.00-5 (Super) or 4.80x4.00-8 (Special) and rear tires sized 16x6.50-8. Attachments include a 32" mid-mount mower deck and a 36" front-mount blade. Variants include the 606 Super and 606 Special models.