international harvester 1066
 | 1971 - 1976
66 SeriesRow-Crop tractor | 1971 - 1976 | 66 Series | Row-Crop tractor |
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1971 - 1976 | ||||
66 Series | ||||
Row-Crop tractor | ||||
1971 - 1976 | |
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66 Series | |
Row-Crop tractor |
Production | |
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Manufacturer | International Harvester |
Row-Crop tractor | |
Built in Rock Island, Illinois, USA | |
Total built | 54,947 |
Original price was $21,100 in 1976 | |
The hydrostatic drive 1066 Hydro was later renamed the Hydro 100. This was due to confusion over drawbar horsepower. The hydrostatic drive took a lot of power to operate, and the 1066 Hydro had much less power than a gear-driven 1066. Torque Amplifer (TA) was optional. The 1066 engine was altered in 1973 to increase horsepower. | |
Variants | |
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1066 Hi-Clear | high-crop |
International Harvester 1066 Engine | |
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International Harvester 6.8L 6-cyl diesel | |
Fuel tank | 42 gal
159.0 L |
Engine details ...  | |
International Harvester 1066 Transmissions | |
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8-speed gear | |
16-speed two-speed power shift | |
hydrostatic | |
Transmission details ...  |
International Harvester 1066 Power | |
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Drawbar (claimed) | 108 hp
80.5 kW |
PTO (claimed) | 126 hp
94.0 kW |
Drawbar (tested) | 105.95 hp
79.0 kW |
PTO (tested) | 125.68 hp
93.7 kW |
Performance test details ...  | |
Mechanical | |
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Two- or four-wheel drive | |
Power steering | |
Hydraulic dry disc brakes | |
Open operator station. Two-post fixed ROPS available. Cab available with optional air-conditioning. |
Photos | |
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 | |
International Harvester 1066 photos...  |
Hydraulics | |
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Type | open center |
Pump flow | 12 gpm
45.4 lpm |
Total flow | 21 gpm
79.5 lpm |
Steering flow | 9 gpm
34.1 lpm |
Tractor hitch | |
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Rear Type | III/II |
Rear lift (at 24"/610mm) | 5600 lbs
2540 kg |
Power Take-off (PTO) | |
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Rear PTO | independent |
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
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Wheelbase | 105 inches
266 cm |
Weight | 12148 to 13345 pounds |
Front tire | 11L-15 |
Rear tire | 18.4-38 |
Full dimensions and tires ...  | |
1066 Serial Number Location | |
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 | |
Serial number plate on the left side of the tractor's clutch housing. |
1066 Serial Numbers | |
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1971 | 7101 |
1972 | 12677 |
1973 | 24205 |
1974 | 34949 |
1975 | 46855 |
1976 | 56672 |
FAQ: How to read a serial number table. | |
References | |
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 | |
1066 Turbo Tractor published in 1971, by International Harvester | |
1066 Hydrostatic Tractor published in 1971, by International Harvester | |
766, 966, 1066 and 1466 Tractors published in 1972, by International Harvester | |
766, 966, 1066 and 1466 Tractors published in 1973, by International Harvester |