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Years in Production / 1972–1978

International Harvester

A-766

Explore the specifications, hardware, and original references for the International Harvester A-766.

Generic tractor; no model photo available
No photo

98hp

Source index power

2WD Only

Drive

1972–1978

Production years

International Harvester

Manufacturer

A-766 / 01

At a glance

Overview

1972 - 1978

66A Series

Row-Crop tractor

Production

Row-Crop tractor

Built in Geelong, Australia

Manufacturer
International Harvester

Mechanical

Two-wheel drive

Power steering

Hydraulic dry disc brakes

Open operator station. Cab optional.

Final Drives
spur gear

Hydraulics

Type
open center
Pump Flow
12 gpm45.4 lpm

Hitch

Rear Type
II

Pto

Rear Pto
independent
Rear Type
540/1000

A-766 / 02

Under the hood

Engine Detail

International Harvester D-310

diesel

6-cylinder

liquid-cooled inline

Displacement
310 ci5.1 L
Bore Stroke
3.875x4.375 inches98 x 111 mm
Power
98 hp73.1 kW
Air Cleaner
dual stage dry
Compression Ratio
16:1
Rated Rpm
2300
Torque
248 lb-ft336.3 Nm
Torque Rpm
1600
Starter
electric
Starter Volts
12
Fuel Type
diesel
Cylinders
6
Cooling
liquid-cooled inline

Engine Options

International Harvester 5.1L 6-cyl diesel

Fuel Tank
37 gal140.0 L

A-766 / 03

Gears & controls

Transmission (Option 1)

Four gears (1-4) in low and high ranges.

Transmission Type
sliding gear
Gears
8 forward and 4 reverse
Clutch
dry disc

Transmission (Option 2)

Four gears (1-4) in two ranges (low/high) with the Torque Amplifier (TA) power shift. The TA allows a shift-on-the-move between direct drive and a lower speed.

Transmission
Torque Amplifier
Transmission Type
two-speed power shift
Gears
16 forward and 8 reverse
Clutch
dry disc

Transmission Options

8-speed sliding gear

16-speed two-speed power shift

A-766 / 04

Size. Stance. Footprint.

Dimensions

Length
155.8 in395 cm
Width
91 in231 cm
Height
84.7 in215 cm
Wheelbase
104.8 in266 cm
Front tread
60 in152 cm
Rear tread
56 in142 cm

Dimensions And Tires

Wheelbase
104.8 inches266 cm
Weight
10300 lbs4672 kg
Front Tire
9.5L-15
Rear Tire
18.4-34

Tires And Tracks

Front Ag
9.5L-15
Rear Ag
18.4-34