International Harvester 1066 Specs ( 1971-1976 )
Production
| Description | Row-Crop tractor / Built in Rock Island, Illinois, USA / Original price was $21,100 in 1976 |
|---|---|
| Manufacturer | International Harvester |
| Total built | 54,947 |
Engine
| Engine type | International Harvester 6.8L 6-cyl diesel |
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| Fuel tank | 42 gal (159.0 L) |
| Air cleaner | dual stage dry |
| Bore/Stroke | 4.30x4.75 inches (109 x 121 mm) |
| Coolant capacity | 25 qts (23.7 L) |
| Description | International Harvester DT414 / turbocharged diesel / 6-cylinder / liquid-cooled |
| Displacement | 414 ci (6.8 L) |
| Oil capacity | 18 qts (17.0 L) |
| Rated RPM | 2400 |
| Starter volts | 12 |
| Drawbar (claimed) | 108 hp (80.5 kW) |
| Drawbar (tested) | 105.95 hp (79.0 kW) |
| PTO (claimed) | 126 hp (94.0 kW) |
| PTO (tested) | 125.68 hp (93.7 kW) |
Transmission
| Clutch | dry disc / dry disc |
|---|---|
| Description | Four gears each in high, low, and reverse ranges. / Four gears (1-4) in two ranges (Low/High) with the two-speed Torque Amplifier power shift (TA/direct). |
| Gears | 8 forward and 4 reverse / 16 forward and 8 reverse / infinite forward and reverse (two-range) |
| Transmission | Torque Amplifier |
| Type | gear / two-speed power shift / hydrostatic |
| Description | hydrostatic |
| Transmission type | 8-speed gear / 16-speed two-speed power shift |
| Description | hydrostatic |
| Transmission type | 8-speed gear / 16-speed two-speed power shift |
Mechanical
| Cab | Open operator station. Two-post fixed ROPS available. Cab available with optional air-conditioning. |
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| Description | Power steering / Hydraulic dry disc brakes |
| Drive type | Two- or four-wheel drive |
Hydraulics
| Pump flow | 12 gpm (45.4 lpm) |
|---|---|
| Steering flow | 9 gpm (34.1 lpm) |
| Total flow | 21 gpm (79.5 lpm) |
| Type | open center |
Hitch
| Rear lift (at 24"/610mm) | 5600 lbs (2540 kg) |
|---|---|
| Rear Type | III/II |
PTO
| Rear PTO | independent |
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| Rear PTO Type | 540/1000 |
Dimensions & Tires
| Bar rear axle | 3.25 inch diameter (82 mm) |
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| Clearance (drawbar) | 16 inches (40 cm) |
| Height (exhaust) | 111 inches (281 cm) |
| Length | 165 inches (419 cm) |
| Wheelbase | 105 inches (266 cm) |
| Width | 98 inches (248 cm) |
| Front tire | 11L-15 |
| Rear tire | 18.4-38 |
| Weight | 12148 to 13345 pounds |
| Wheelbase | 105 inches (266 cm) |
| Ag front | 11L-15 |
| Ag rear | 18.4-38 |
1066 Serial Number Location
| Description | Serial number plate on the left side of the tractor's clutch housing. |
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1066 Serial Numbers
| 1971 | 7101 |
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| 1972 | 12677 |
| 1973 | 24205 |
| 1974 | 34949 |
| 1975 | 46855 |
| 1976 | 56672 |
| Description | FAQ: How to read a serial number table. |
International Harvester 1066 Weight
| Ballasted | 15,260 lbs (6921 kg) |
|---|---|
| Operating | 12,148 lbs (gear) (5510 kg) |
Nebraska Tractor Test 1081
| Description | Diesel Torque Amplifier 2WDOctober 1 - 21, 1971Link: Nebraska Tractor Test 1081 file / PTO performance / Drawbar performance / Gear 1-Hi-TA used for power test. / Gear 3-Lo-TA used for pull test. |
|---|---|
| Fuel use | 7.7 gal/hour (29.1 l/hour) / 6.8 gal/hour (25.7 l/hour) / 7.6 gal/hour (28.8 l/hour) |
| Max power | 100.5 hp (74.9 kW) |
| Max pull | 11625 lbs (5273 kg) |
| Power at rated engine speed | 116.23 hp (86.7 kW) |
| Power at rated PTO speed | 112.18 hp (83.7 kW) |
Nebraska Tractor Test 1083
| Description | Diesel hydrostatic 2WDOctober 7 - 25, 1971Link: Nebraska Tractor Test 1083 file / PTO performance / Drawbar performance / Gear 5.4 MPH used for power test. / Gear 3.1 MPH used for pull test. |
|---|---|
| Fuel use | 7.9 gal/hour (29.9 l/hour) / 7.0 gal/hour (26.5 l/hour) / 8.0 gal/hour (30.3 l/hour) |
| Max power | 84.88 hp (63.3 kW) |
| Max pull | 9576 lbs (4343 kg) |
| Power at rated engine speed | 113.58 hp (84.7 kW) |
| Power at rated PTO speed | 109.32 hp (81.5 kW) |
Nebraska Tractor Test 1124
| Description | Diesel gear 2WDApril 17 - 27, 1973Link: Nebraska Tractor Test 1124 file / PTO performance / Drawbar performance / Gear 1-Hi-TA used for power test. / Gear 2-Lo-Direct used for pull test. |
|---|---|
| Fuel use | 8.4 gal/hour (31.8 l/hour) / 7.3 gal/hour (27.6 l/hour) / 8.3 gal/hour (31.4 l/hour) |
| Max power | 105.95 hp (79.0 kW) |
| Max pull | 13000 lbs (5896 kg) |
| Power at rated engine speed | 125.68 hp (93.7 kW) |
| Power at rated PTO speed | 119.2 hp (88.9 kW) |
References
| Description | 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 |
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Speeds
| Description | With 18.4-38 rear tires. / With 18.4-38 rear tires. |
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Tractor Tests
| Description | NTTL 1081: diesel Torque Amplifier 2WD / NTTL 1083: diesel hydrostatic 2WD / NTTL 1124: diesel gear 2WD |
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Variants
| 1066 Hi-Clear | high-crop |
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