Power: 95 hp Date of manufacture : 1959 - 1963
Production Manufacturer: International Harvester Type: Standard-tread tractor Total built: 6,945 Original price: $6,000 (1963) International Harvester 660 Power Engine: 95 hp 70.8 kW Plows: 6 Drawbar (tested): 70.21 hp 52.4 kW PTO (tested): 81.39 hp 60.7 kW International Harvester 660 Engines Mechanical Chassis: 4x2 2WD Steering: manual   hydrostatic power optional Brakes: independent mechanical disc Cab: Open operator station. Transmissions: 5-speed   10-speed Photos International Harvester 660 photos... Hydraulics Valves: 1 Total flow: 12 gpm 45.4 lpm   17 gpm 64.3 lpm (optional) Steering flow: 2.5 gpm 9.5 lpm Power Take-off (PTO) Rear PTO: independent Rear RPM: 540 Dimensions & Tires Wheelbase: 85.5 inches 217 cm Weight: 9635 to 9875 pounds Front tire: 7.50-18 Rear tire: 18.4/15-34 660 Serial Numbers Location: Right side of clutch housing photo of 660 serial number 1959: 501 1960: 3398 1961: 4259 1962: 5883 1963: 6995 Final: ? how to read serial numbers...

International Harvester 650	Power: 63 hp[P]	Date of manufacture : 1956 - 1958

International Harvester 654	Power: 60 hp	Date of manufacture : 1972 - 1974

International Harvester 654-S	Power: 0	Date of manufacture : 0000 - 0000

International Harvester 656	Power: 70 hp[P]	Date of manufacture : 1965 - 1973

International Harvester 660	Power: 95 hp	Date of manufacture : 1959 - 1963

International Harvester 664	Power: 68 hp[P]	Date of manufacture : 1972 - 1973

International Harvester 666	Power: 73 hp[P]	Date of manufacture : 1972 - 1976

International Harvester 674	Power: 65 hp[P]	Date of manufacture : 1973 - 1977

International Harvester 684	Power: 69 hp	Date of manufacture : 1977 - 1984