Power: 66 hp Date of manufacture : 1964 - 1976
Production Manufacturer: International Harvester Factory: Doncaster, England Total built: 3,848 International Harvester B-634 Power Engine: 66 hp 49.2 kW PTO (claimed): 59.3 hp 44.2 kW International Harvester B-634 Engine Mechanical Chassis: 4x2 2WD   4x4 4WD*Four-wheel drive conversion by County 2WD Steering: manual 4WD Steering: power Brakes: mechanical disc Cab: Open operator station. Cab optional. Transmission: 8-speed Hydraulics Pressure: 2500 psi 172.4 bar Pump flow: 10.4 gpm 39.4 lpm Steering flow: 4.8 gpm 18.2 lpm Steering press.: 1500 psi 103.4 bar Tractor hitch Rear Type: II Control: position and draft control Rear lift: 3360 lbs 1524 kg Power Take-off (PTO) Rear PTO: independent Rear RPM: 540 (1.375) Engine RPM: 540@1458 Dimensions & Tires 2WD Wheelbase: 86.8 inches 220 cm 4WD Wheelbase: 86.8 inches 220 cm AWD Wheelbase: 75 inches 190 cm Weight: 6546 to 9574 pounds Front tire: 7.50-16 2WD Rear tire: 11-38 Full dimensions and tires ... Electrical Charging system: generator Battery volts: 12 Battery AH: 95

International Harvester B-276	Power: 37 hp	Date of manufacture : 1966 - 1971

International Harvester B-414	Power: 43 hp	Date of manufacture : 1961 - 1966

International Harvester B-434	Power: 43 hp	Date of manufacture : 1966 - 1971

International Harvester B-614	Power: 62 hp	Date of manufacture : 1963 - 1968

International Harvester B-634	Power: 66 hp	Date of manufacture : 1964 - 1976

International Harvester BTD-6	Power: 55 hp	Date of manufacture : 1955 - 1975

International Harvester BTD-8	Power: 60 hp	Date of manufacture : 1960 - 1966

International Harvester BTD-20	Power: 135 hp	Date of manufacture : 1959 - 1974

International Harvester Cub	Power: 13 hp	Date of manufacture : 1964 - 1979