Power: 7 hp Date of manufacture : 1972 - 0000
Production Manufacturer Simplicity (a part of Allis Chalmers) Simplicity Yeoman 637 Transmission Mechanical Two-wheel drive Manual steering Mechanical band brakes Open operator station. Power Take-off (PTO) Mid PTO independent Clutch manual Dimensions & Tires Wheelbase 36.5 inches 92 cm Weight 268 to 288 pounds Front tire 4.10/3.50x6 Rear tire 16-6.50x8 Full dimensions and tires ... Electrical Ground negative Battery volts 12

Simplicity lawn tractors Wonder Boy	Power: 3 hp	Date of manufacture : 1957 - 0000

Simplicity lawn tractors Wonder Boy II	Power: 4 hp	Date of manufacture : 1958 - 0000

Simplicity lawn tractors Yeoman 616	Power: 6 hp	Date of manufacture : 1968 - 0000

Simplicity lawn tractors Yeoman 627	Power: 7 hp	Date of manufacture : 1969 - 1971

Simplicity lawn tractors Yeoman 637	Power: 7 hp	Date of manufacture : 1972 - 0000

Simplicity lawn tractors Yeoman 648	Power: 8 hp	Date of manufacture : 1973 - 0000

Snapper lawn tractors 8HP36	Power: 8 hp	Date of manufacture : 1954 - 1962

Snapper lawn tractors 264R	Power: 4 hp	Date of manufacture : 1966 - 0000