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Years in Production / 1974–1976
International Harvester
1566
Explore the specifications, hardware, and original references for the International Harvester 1566.
183hp
Source index power
2WD Only
Drive
1974–1976
Production years
International Harvester
Manufacturer
1566 / 01
At a glance
Overview
1974 - 1976
66 Series
Row-Crop tractor
Production
Row-Crop tractor
Built in Rock Island, Illinois, USA
Original price was $26,250 in 1976
- Manufacturer
- International Harvester
- Total Built
- 7,417
Mechanical
Two-wheel drive
Power steering
Hydraulic wet disc brakes
Open operator station. Cab available with air-conditioning.
- Final Drives
- planetary
Hydraulics
- Type
- open center
- Rear Valves
- 2 OptOptional
- Front Valves
- 2 OptOptional
- Pump Flow
- 12 gpm45.4 lpm
Hitch
- Rear Type
- III/II
- Control
- lower-link draft sensing
Pto
- Rear Pto
- independent
- Rear Type
- 1000
- Engine Rpm
- 1000@2300
Electrical
- Charging System
- alternator
1566 / 02
Under the hood
Engine Detail
International Harvester DT-436
turbocharged diesel
6-cylinder
liquid-cooled
- Displacement
- 436 ci7.1 L
- Bore Stroke
- 4.30x5.00 inches109 x 127 mm
- Power
- 183 hp136.5 kW
- Compression Ratio
- 16:1
- Rated Rpm
- 2600
- Idle Rpm
- 900-2600
- Oil Capacity
- 20 qts18.9 L
- Coolant Capacity
- 26 qts24.6 L
- Cylinders
- 6
- Cooling
- liquid-cooled
Engine Options
International Harvester 7.1L 6-cyl diesel
- Fuel Tank
- 42 gal159.0 L
- Fuel Tank
- 82 galOptOptional310.4 L
1566 / 03
Gears & controls
Transmission
- Transmission
- Torque Amplifier
- Transmission Type
- two-speed power shift
- Gears
- 12 forward and 6 reverse
- Speeds Description
- With 20.8-38 rear tires.
International Harvester1566 Transmission
12-speed two-speed power shift
1566 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 168 in426 cm
- Width
- 112 in284 cm
- Height (cab)
- 117 in297 cm
- Wheelbase
- 105 in266 cm
- Front tread
- 62 in157 cm
- Rear tread
- 66 in167 cm
Dimensions And Tires
- Wheelbase
- 105 inches266 cm
- Weight
- 13200 to 15195 pounds
- Front Tire
- 11L-15
- Rear Tire
- 20.8-38
Tires And Tracks
- Front Ag
- 11L-15
- Rear Ag
- 20.8-38
1566 / 05
Tractor Photos
See it in action
Videos
Watch International Harvester 1566 videos from their original YouTube creators.
1566 / 07
Tests (NTTL)
Nebraska Tractor Test 1174Nebraska test report ↗
Diesel Torque Amplifier 2WDMay 3 - 15, 1975
PTO performance
Drawbar performance
- Id
- 1174
- Power At Rated Engine Speed
- 161.01 hp120.1 kW
- Fuel Use
- 11.1 gal/hour42.0 l/hour
- Fuel Use
- 10.0 gal/hour37.9 l/hour
- Fuel Use
- 10.9 gal/hour41.3 l/hour
- Power At Rated Pto Speed
- 162.31 hp121.0 kW
- Max Power
- 137.00 hp102.2 kW
- Max Pull
- 15774 lbs7155 kg