Power: 41 hp[B] Date of manufacture : 1953 - 1957
Production Manufacturer: International Harvester Factory: Geelong, Australia Variants OS-6: US-build variant International Harvester AOS-6 Power Belt (claimed): 37 hp 27.6 kW International Harvester AOS-6 Engine Mechanical Chassis: 4x2 2WD Dimensions & Tires Weight: 6,500 lbs 2948 kg Full dimensions and tires ... AOS-6 Serial Numbers 1953: 501 1954: 3544 1955: 6667 1956: 8055 1957: 9040 how to read serial numbers...

International Harvester A-414	Power: 40 hp	Date of manufacture : 1962 - 1966

International Harvester A-564	Power: 61 hp	Date of manufacture : 1966 - 1973

International Harvester A-766	Power: 0	Date of manufacture : 1972 - 1978

International Harvester A-866	Power: 121 hp	Date of manufacture : 1973 - 1978

International Harvester AOS-6	Power: 41 hp[B]	Date of manufacture : 1953 - 1957

International Harvester B-250	Power: 30 hp	Date of manufacture : 1956 - 1961

International Harvester B-275	Power: 38 hp	Date of manufacture : 1958 - 1968

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

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