Farmall 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
Produced between 1971 and 1976 in Rock Island, Illinois, the International Harvester 1066 is a row-crop tractor belonging to the manufacturer's heavy-duty lineup. It served as a primary power unit for large-scale agricultural operations during the 1970s.
Engine and Performance
The tractor is powered by the International Harvester DT414, a 6.8-liter (414 cubic inch) turbocharged diesel engine. This 6-cylinder liquid-cooled power plant delivers 140 horsepower. It features a dual-stage dry air cleaner to protect the engine components during field operations and operates at a rated engine speed of 2400 RPM (2600 RPM for models produced after 1973).
Transmission and Drivetrain
The 1066 offers three transmission configurations to suit varying operational requirements: a standard 8-speed gear transmission, a 16-speed power shift transmission with a two-speed Torque Amplifier, and a hydrostatic transmission. These options allow for precise speed control in both forward and reverse. The tractor is available in either two-wheel or four-wheel drive variants.
Hydraulics and Hitch
Equipped with an open-center hydraulic system, the tractor provides a total flow of 21 gallons per minute (79.5 liters per minute), with 9 gallons per minute dedicated to steering. The rear hitch is a category II/III system capable of lifting 5600 lbs (2540 kg) at 24 inches behind the lift point, facilitating the use of heavy mounted implements.
Operator Environment and Dimensions
The operator station is designed as an open platform, with the option for a two-post fixed ROPS (Roll-Over Protective Structure) or a fully enclosed cab featuring optional air-conditioning. With a wheelbase of 105 inches and a width of 98 inches, the machine provides a stable footprint for field work. It utilizes 11L-15 front tires and 18.4-38 rear agricultural tires.
Conclusion
The International Harvester 1066 is a high-horsepower row-crop tractor built for demanding traction and heavy implement management. Its combination of robust engine output, versatile transmission choices, and significant hydraulic capacity positions it as a workhorse suitable for primary tillage and large-acreage farming tasks.
Production Information of Farmall, 1066
- Original price was $21,100 in 1976
- Row-Crop tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | Farmall (a part of International Harvester) |
|---|---|
| Total built | 54,947 |
Dimension and Tires Information of Farmall, 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 Farmall, 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 Farmall, 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 Farmall, 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 Farmall, 1066
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of Farmall, 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 Farmall, 1066
| Rear Type | III/II |
|---|---|
| Rear lift (at 24"/610mm) | 5600 lbs [2540 kg] |
Where it sits
With 140 hp[P] HP, the Farmall 1066 sits between Hydro 100 (115 HP) and 1468 (147 HP) in Farmall'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 Farmall 1066 have?
The Farmall 1066 delivers 140 hp[P] HP.
What years was the Farmall 1066 produced?
The Farmall 1066 was produced in 1971-1976.
What engine does the Farmall 1066 have?
The Farmall 1066 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the Farmall 1066 use?
The Farmall 1066 uses a Gear transmission.
Is the Farmall 1066 4WD?
The Farmall 1066 is available in 2WD/4WD.