The Bolens QT-16 1666 is a garden tractor produced from 1973 to 1978 as part of the Q Series. It features a 16 hp Onan BF-MS 659cc 2-cylinder air-cooled gasoline engine with a shaft-driven hydrostatic transmission providing infinite forward and reverse speeds. The tractor has a wheelbase of 48.5 inches and weighs 850 lbs. It includes manual steering, disc brakes, and an open operator station with an optional soft-side cab. Electrical system includes a 12-volt battery and flywheel alternator charging system. Optional features include a rear sleeve hitch and independent rear PTO. Attachments available include a 48-inch mid-mount mower deck, snowblowers, blades, front-end loader, and a rear tiller with extension options.