International Harvester 1066
Power
140 hp[P] hp
Production
1971-1976
Engine
Turbocharged diesel, 6-cylinder
Transmission
Gear
Drive
2WD/4WD
From the same series:
Introduction
International Harvester 1066 Row-Crop Tractor
The International Harvester 1066 is a row-crop tractor produced between 1971 and 1976 in Rock Island, Illinois. Part of the manufacturer's heavy-duty tractor lineup, it was designed to provide significant power for demanding field operations.
Engine and Performance
The tractor is powered by the International Harvester DT414, a 6.8-liter, 6-cylinder turbocharged diesel engine. This liquid-cooled unit features a bore and stroke of 109 x 121 mm and operates at a rated speed of 2400 RPM. It includes a dual-stage dry air cleaner to maintain engine longevity in dusty agricultural environments.
Transmission and Drivetrain
The 1066 offers three distinct transmission configurations to suit varying operational requirements: a standard 8-speed gear transmission, a 16-speed transmission featuring a two-speed Torque Amplifier power shift, and an infinite-speed hydrostatic drive. All versions utilize a dry disc clutch mechanism. The tractor is available in both two-wheel and four-wheel drive variants.
Hydraulics and Hitch
Equipped with an open-center hydraulic system, the tractor provides a total flow of 21 gpm (79.5 lpm), with 12 gpm dedicated to implement functions and 9 gpm to the power steering. The rear hitch is a Category III/II type, capable of a lift capacity of 5,600 lbs (2,540 kg) measured at 24 inches behind the lift point.
Dimensions and Operator Environment
The chassis features a 105-inch (266 cm) wheelbase and a total length of 165 inches (419 cm). The operator station is an open-platform design, which could be fitted with a two-post fixed ROPS or an optional cab equipped with air-conditioning. Standard agricultural tires are specified as 11L-15 at the front and 18.4-38 at the rear.
Conclusion
The International Harvester 1066 serves as a robust row-crop tractor suited for large-scale farming applications requiring high drawbar and PTO performance. Its variety of transmission options and heavy-duty construction make it a versatile asset for primary tillage and heavy field work.
Videos
Production Information of International Harvester, 1066
- Original price was $21,100 in 1976
- Row-Crop tractor
- 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.
- Built in Rock Island, Illinois, USA
| Manufacturer | International Harvester |
|---|---|
| Total built | 54,947 |
Dimension and Tires Information of International Harvester, 1066
| Wheelbase | 105 inches [266 cm] |
|---|---|
| Clearance (drawbar) | 16 inches [40 cm] |
| Height (exhaust) | 111 inches [281 cm] |
| Length | 165 inches [419 cm] |
| Bar rear axle | 3.25 inch diameter [82 mm] |
| Width | 98 inches [248 cm] |
| Ag front | 11L-15 |
|---|---|
| Ag rear | 18.4-38 |
Engine Specifications of International Harvester, 1066
- International Harvester DT414
- Liquid-cooled
- Turbocharged diesel
- 6-cylinder
| Oil capacity | 18 qts [17.0 L] |
|---|---|
| Displacement | 414 ci [6.8 L] |
| Rated RPM | 2400 |
| Bore/Stroke | 4.30x4.75 inches [109 x 121 mm] |
| Coolant capacity | 25 qts [23.7 L] |
| Starter volts | 12 |
| Starter volts(optional) | 2600 (after 1973) |
| Air cleaner | Dual stage dry |
Transmission Information of International Harvester, 1066
Transmission variants 1
- Four gears each in high, low, and reverse ranges.
| Type | Gear |
|---|---|
| Gears | 8 forward and 4 reverse |
| Clutch | Dry disc |
Transmission variants 2
- Four gears (1-4) in two ranges (Low/High) with the two-speed Torque Amplifier power shift (TA/direct).
| Transmission | Torque Amplifier |
|---|---|
| Clutch | Dry disc |
| Type | Two-speed power shift |
| Gears | 16 forward and 8 reverse |
Transmission variants 3
| Type | Hydrostatic |
|---|---|
| Gears | Infinite forward and reverse (two-range) |
- 8-speed gear
- 16-speed two-speed power shift
- Hydrostatic
Mechanical Specs of International Harvester, 1066
- Two- or four-wheel drive
- Open operator station. Two-post fixed ROPS available. Cab available with optional air-conditioning.
- Power steering
- Hydraulic dry disc brakes
Power Information of International Harvester, 1066
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of International Harvester, 1066
| Type | Open center |
|---|---|
| Steering flow | 9 gpm [34.1 lpm] |
| Pump flow | 12 gpm [45.4 lpm] |
| Total flow | 21 gpm [79.5 lpm] |
Three-Point Hitch of International Harvester, 1066
| Rear Type | III/II |
|---|---|
| Rear lift (at 24"/610mm) | 5600 lbs [2540 kg] |
Where it sits
With 140 hp[P] HP, the International Harvester 1066 sits between Hydro 100 (115 HP) and 1086 (144 HP) in International Harvester's range. Its power puts it in the 80th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the International Harvester 1066 have?
The International Harvester 1066 delivers 140 hp[P] HP.
What years was the International Harvester 1066 produced?
The International Harvester 1066 was produced in 1971-1976.
What engine does the International Harvester 1066 have?
The International Harvester 1066 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the International Harvester 1066 use?
The International Harvester 1066 uses a Gear transmission.
Is the International Harvester 1066 4WD?
The International Harvester 1066 is available in 2WD/4WD.