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Farmall 1066

The Farmall 1066 is a row-crop tractor built by Farmall, a part of International Harvester, in Rock Island, Illinois, USA. It was produced in the 66 Series with a total of 54,947 units built. The original price was $21,100 in 1976. It features an International Harvester 6.8L 6-cylinder turbocharged diesel engine, with a fuel tank capacity of 42 gallons (159.0 L). The tractor offers multiple transmission options including an 8-speed gear, 16-speed two-speed power shift, and hydrostatic. It has a drawbar power of 108 hp (claimed) and PTO power of 126 hp (claimed). The tractor supports two- or four-wheel drive, power steering, hydraulic dry disc brakes, and an open operator station with optional cab and air-conditioning. The Farmall 1066 is equipped with a rear hitch type III/II and an independent rear PTO with 540/1000 rpm options. It has a wheelbase of 105 inches (266 cm), weighs between 12,148 to 13,345 lbs depending on configuration, and uses 11L-15 front tires and 18.4-38 rear tires.
Farmall 1066Farmall tractorInternational Harvester 1066row-crop tractortractor specifications6.8L diesel engine8-speed gear transmission16-speed power shifthydrostatic transmission
Power140 hp[P]
Founded1971 - 1976
Model1066

Technical Specifications

Detailed specifications and technical data for Farmall 1066

Power

PTO (tested):125.68 hp (93.7 kW)
PTO (claimed):126 hp (94.0 kW)
Drawbar (tested):105.95 hp (79.0 kW)
Drawbar (claimed):108 hp (80.5 kW)

Tires

Ag rear:18.4-38
Ag front:11L-15

Engine

Type:turbocharged diesel
Model:International Harvester DT414
Cooling:liquid-cooled
Cylinders:6-cylinder
Fuel tank:42 gal (159.0 L)
Rated RPM:2400, 2600 (after 1973)
Air cleaner:dual stage dry
Bore/Stroke:4.30x4.75 inches (109 x 121 mm)
Displacement:414 ci (6.8 L)
Oil capacity:18 qts (17.0 L)
Starter volts:12
Coolant capacity:25 qts (23.7 L)

Weight

Ballasted:15,260 lbs (6921 kg)
Operating (gear):12,148 lbs (5510 kg)
Operating (duals):13,345 lbs (6053 kg)
Operating (hydro):12,320 lbs (5588 kg)

Dimensions

Width:98 inches (248 cm)
Length:165 inches (419 cm)
Wheelbase:105 inches (266 cm)
Bar rear axle:3.25 inch diameter (82 mm)
Height (exhaust):111 inches (281 cm)
Clearance (drawbar):16 inches (40 cm)

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)

Mechanical

Drive:Two- or four-wheel drive
Brakes:Hydraulic dry disc brakes
Steering:Power steering
Operator station:Open operator station. Two-post fixed ROPS available. Cab available with optional air-conditioning.

Production

Built in:Rock Island, Illinois, USA
Total built:54,947
Manufacturer:Farmall (a part of International Harvester)
Original price:$21,100 in 1976

Transmission

Gears:8 forward and 4 reverse
Clutch:dry disc
Gear type:gear
Description:Four gears each in high, low, and reverse ranges.
Hydrostatic type:hydrostatic
Torque Amplifier:two-speed power shift
Hydrostatic gears:infinite forward and reverse (two-range)
Transmission options:8-speed gear, 16-speed two-speed power shift, hydrostatic
Torque Amplifier gears:16 forward and 8 reverse
Torque Amplifier clutch:dry disc
Torque Amplifier description:Four gears (1-4) in two ranges (Low/High) with the two-speed Torque Amplifier power shift (TA/direct).

Tractor hitch

Rear Type:III/II
Rear lift (at 24"/610mm):5600 lbs (2540 kg)

Serial Numbers

1971:7101
1972:12677
1973:24205
1974:34949
1975:46855
1976:56672

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:540/1000

Related Models

Farmall Hydro 100

Model:Hydro 100

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Model:1066

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Model:1468