Farmall 1066

Name: Farmall 1066
Brand: Farmall

Power

140 hp[P] hp

Production

1971-1976

Engine

Turbocharged diesel, 6-cylinder

Transmission

Gear

Drive

2WD/4WD

140–200 HP 1970s

From the same series:

Hydro 100

1468

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."

Introduction

Production Information of Farmall, 1066

The production information of the tractor (1066) includes details about its manufacturing.

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

This section sums up the dimension and tires information of the tractor.


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

Get the specifications for the engine and if different options are available.

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
	2600 (after 1973)
Air cleaner	Dual stage dry

Transmission Information of Farmall, 1066Y

Discover all variants of transmission available for this tractor model.

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, 1066Y

This section summarizes all mechanical information such as the brake system and other specifications.

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, 1066Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent
Rear PTO Type	540/1000

Hydraulics Specifications of Farmall, 1066

Hydraulic system type, pressure, pump flow and valves.


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

Hitch category and rear/front lift capacity.


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

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.

More Farmall models

1456144 HP · 1969 - 1971 1466147 HP · 1971 - 1976 1468147 HP · 1971 - 1974 1026127 HP · 1970 - 1971 1206125 HP · 1965 - 1967 1256125 HP · 1967 - 1969 Hydro 100115 HP · 1973 - 1976 806110 HP · 1963 - 1967

View all 74 Farmall models →

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