International Harvester 1066
| | 1971 - 1976 |
| 66 Series | | Row-Crop tractor |
|
Series map:
Hydro 100
1066
1466
115.7hp*
140.0hp*
147.8hp*
*Estimated engine power for comparison only.
| Production |
| 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 |
| 1066 Hi-Clear | high-crop
|
| International Harvester 1066 Power |
| 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 |
| 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. |
| Hydraulics |
| 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 |
| Rear Type | III/II
|
| Rear lift (at 24"/610mm) | 5600 lbs
2540 kg
|
| Power Take-off (PTO) |
| Rear PTO | independent
|
| Rear PTO Type | 540/1000
|
| 1066 Serial Number Location |
 |
| Serial number plate on the left side of the tractor's clutch housing. |
| References |
 |
| 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 |
| Page information |
 |
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| Peter Easterlund - owner/author |
| Email: Peter@TractorData.com |
| Updated on August 8, 2023 |
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Engine details ...
Transmission details ...
Full dimensions and tires ...