Farmall

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.
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 rear18.4-38
Ag front11L-15
Engine
Typeturbocharged diesel
ModelInternational Harvester DT414
Coolingliquid-cooled
Cylinders6-cylinder
Fuel tank42 gal (159.0 L)
Rated RPM2400, 2600 (after 1973)
Air cleanerdual stage dry
Bore/Stroke4.30x4.75 inches (109 x 121 mm)
Displacement414 ci (6.8 L)
Oil capacity18 qts (17.0 L)
Starter volts12
Coolant capacity25 qts (23.7 L)
Weight
Ballasted15,260 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
Width98 inches (248 cm)
Length165 inches (419 cm)
Wheelbase105 inches (266 cm)
Bar rear axle3.25 inch diameter (82 mm)
Height (exhaust)111 inches (281 cm)
Clearance (drawbar)16 inches (40 cm)
Hydraulics
Typeopen center
Pump flow12 gpm (45.4 lpm)
Total flow21 gpm (79.5 lpm)
Steering flow9 gpm (34.1 lpm)
Mechanical
DriveTwo- or four-wheel drive
BrakesHydraulic dry disc brakes
SteeringPower steering
Operator stationOpen operator station. Two-post fixed ROPS available. Cab available with optional air-conditioning.
Production
Built inRock Island, Illinois, USA
Total built54,947
ManufacturerFarmall (a part of International Harvester)
Original price$21,100 in 1976
Transmission
Gears8 forward and 4 reverse
Clutchdry disc
Gear typegear
DescriptionFour gears each in high, low, and reverse ranges.
Hydrostatic typehydrostatic
Torque Amplifiertwo-speed power shift
Hydrostatic gearsinfinite forward and reverse (two-range)
Transmission options8-speed gear, 16-speed two-speed power shift, hydrostatic
Torque Amplifier gears16 forward and 8 reverse
Torque Amplifier clutchdry disc
Torque Amplifier descriptionFour gears (1-4) in two ranges (Low/High) with the two-speed Torque Amplifier power shift (TA/direct).
Tractor hitch
Rear TypeIII/II
Rear lift (at 24"/610mm)5600 lbs (2540 kg)
Serial Numbers
19717101
197212677
197324205
197434949
197546855
197656672
Power Take-off (PTO)
Rear PTOindependent
Rear PTO Type540/1000