The Yard-Man 3100 250 is a lawn tractor produced from 1964 to 1967 by Yard-Man in Jackson, Michigan, USA. It features a front-mount mower and was originally priced at $330 in 1966. It is powered by a 4 hp Briggs & Stratton 170cc 1-cylinder gasoline engine with manual recoil start. The transmission is a 2-speed with 2 forward and reverse gears. The tractor has two-wheel drive, manual steering, and an open operator station. Attachments include a 25-inch front-mount mower deck with manual lift.