International Harvester 1568

International Harvester 1568 tractor photo
1974 - 1976
66 Series
Row-Crop tractor
Series map:
ManufacturerInternational Harvester
Row-Crop tractor
Built in Rock Island, Illinois, USA
Total built862
Original price was $26,980 in 1976
The 1568 was a 1566 with a International V8 truck engine.
International Harvester 1568 Engine
International 9.0L 8-cyl diesel
Fuel tank42 gal
159.0 L
Engine details ...
International Harvester 1568 Power
Engine (gross)172 hp
128.3 kW
PTO (claimed)150 hp
111.9 kW
Drawbar (tested)130.17 hp
97.1 kW
PTO (tested)150.70 hp
112.4 kW
Performance test details ...
Two-wheel drive
Power steering
Hydraulic wet disc brakes
Cab standard with air-conditioning.
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Typeopen center
Rear valves1 or 2
Front valves2 OptOptional
Pump flow12 gpm
45.4 lpm
Tractor hitch
Rear TypeIII/II
Power Take-off (PTO)
Rear PTOindependent
Rear RPM1000
Dimensions & Tires
Wheelbase105 inches
266 cm
Weight12,960 lbs
5878 kg
Front tire11L-15
Rear tire20.8-38
Full dimensions and tires ...
1568 Serial Numbers

FAQ: How to read a serial number table.
IH V-8 Tractor Engines: article on the V8s from
1568 references literature
Farm Equipment Reference Catalog published in 1973, by International Harvester
Page information
Contact: Peter Easterlund
Updated on January 3, 2023
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