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International Harvester 1568

International Harvester 1568 tractor
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The International Harvester 1568 is a row-crop tractor produced from 1974 to 1976 as part of the 66 Series. It was built in Rock Island, Illinois, USA, with a total of 862 units made. The 1568 model is essentially a 1566 equipped with an International V8 truck engine. It features a powerful 9.0L 8-cylinder diesel engine delivering 172 hp gross, coupled with a 12-speed two-speed power shift transmission. The tractor includes standard cab air-conditioning, hydraulic wet disc brakes, and power steering. It has a 42-gallon fuel tank and an independent rear PTO rated at 150 hp. The 1568 is designed for heavy-duty farm work with a weight of 12,960 lbs and a wheelbase of 105 inches. Its hydraulics system is open center type with optional front valves and a draft control hitch.
International Harvester 1568IH 1568tractor specsfarm tractor66 Seriesdiesel enginepower shift transmissionrow-crop tractor
Power172 hp
Founded1974 - 1976
Model1568

Technical Specifications

Detailed specifications and technical data for International Harvester 1568

Power

PTO (tested):150.70 hp (112.4 kW)
PTO (claimed):150 hp (111.9 kW)
Engine (gross):172 hp (128.3 kW)
Drawbar (tested):130.17 hp (97.1 kW)

Tires

Rear tire:20.8-38
Front tire:11L-15

Engine

Type:diesel
Model:International DV-550
Idle RPM:900-2600
Cylinders:8-cylinder
Fuel tank:42 gal (159.0 L)
Rated RPM:2600
Air cleaner:two-stage dry with unloader
Bore/Stroke:4.312x4.50 inches (110 x 114 mm)
Displacement:548.7 ci (9.0 L)
Oil capacity:16 qts (15.1 L)
Configuration:liquid-cooled V-8
Power (gross):172 hp (128.3 kW)
Starter volts:12
Coolant capacity:30 qts (28.4 L)
Compression ratio:16.6:1

Dimensions

Length:168 inches (426 cm)
Weight:12,960 lbs (5878 kg)
Wheelbase:105 inches (266 cm)
Rear tread:66 to 120 inches (167 to 304 cm)
Front tread:52 to 86 inches (132 to 218 cm)
Height (cab):117 inches (297 cm)
Height (exhaust):128 inches (325 cm)
Clearance (drawbar):17 inches (43 cm)

Electrical

Battery volts:6
Charging system:alternator

Hydraulics

Type:open center
Pump flow:12 gpm (45.4 lpm)
Total flow:21 gpm (79.5 lpm)
Rear valves:1 or 2
Front valves:2 (Optional)

Mechanical

Cab:standard with air-conditioning
Drive:Two-wheel drive
Brakes:Hydraulic wet disc brakes
Final drives:planetary
Power steering:Yes

Production

Type:Row-Crop tractor
Notes:The 1568 was a 1566 with a International V8 truck engine.
Series:66 Series
Built in:Rock Island, Illinois, USA
Years made:1974 - 1976
Total built:862
Original price:$26,980 in 1976

Transmission

Type:two-speed power shift
Gears:12 forward and 6 reverse
Transmission:Torque Amplifier

Tractor hitch

Control:draft control
Rear Type:III/II

Power Take-off (PTO)

Rear PTO:independent
Engine RPM:1000@2300
Rear PTO Type:1000 (1.375)

Related Models

International Harvester 1566

Model:1566