International Harvester 4568
The International Harvester 4568 is a tractor produced by International Harvester. It is equipped with a 798 ci 13.1 L engine. The listed engine power is Diesel (listed): 300 hp / 223.7 kW. Transmission: 10 forward and 2 reverse. Operating weight: 21900 lbs 9933 kg.
Overview
![]() | 1975 - 1976
66 SeriesFour-wheel Drive (4WD) tractorSteiger built
66 Series
Four-wheel Drive (4WD) tractor
Steiger built |
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Production | |
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Distributor | International Harvester |
Manufacturer | Steiger |
Four-wheel Drive (4WD) tractor | |
Built in Fargo, North Dakota, USA | |
Total built | 858 |
Original price was $48,500 in 1976 | |
International Harvester 4568 Engine | |
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International Harvester 13.1L 8-cyl diesel | |
Engine details ... |
International Harvester 4568 Transmission | |
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10-speed continuous mesh | |
Transmission details ... |
International Harvester 4568 Power | |
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Engine | 300 hp
223.7 kW |
Drawbar (claimed) | 235 hp
175.2 kW |
Drawbar (tested) | 228.01 hp
170.0 kW |
Performance test details ... | |
Mechanical | |
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Four-wheel drive | |
Articulated power steering | |
Hydraulic disc brakes | |
Cab standard with air-conditioning. |
Hydraulics | |
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Type | open center |
Pump flow | 17 gpm
64.3 lpm |
Steering flow | 22 gpm
83.3 lpm |
Dimensions & Tires | |
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Wheelbase | 118 inches
299 cm |
Weight | 21900 lbs
9933 kg |
Front tire | 24.5-32 |
Rear tire | 24.5-32 |
Full dimensions and tires ... | |
Electrical | |
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Charging system | alternator |
Batteries | 2 |
Battery volts | 12 |
References | |
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![]() | |
New 4568 Turo Tractor published in 1975, by International Harvester |
Engine
Engine Detail — 798 ci / 13.1 L Diesel
Manufacturer | International Harvester DVT-800 |
Configuration | turbocharged diesel, 8-cylinder, liquid-cooled V8 |
Displacement | 798 ci
13.1 L |
Bore/Stroke | 5.31x4.50 inches
135 x 114 mm |
Power | 300 hp
223.7 kW |
Rated RPM | 2600 |
Torque | 825 lb-ft
1118.7 Nm |
Torque RPM | 1800 |
Starter volts | 12 |
Transmission
Transmission — 10 forward and 2 reverse continuous mesh
Type | continuous mesh |
Gears | 10 forward and 2 reverse |
Clutch | 355.6mm dry discs |
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Dimensions
International Harvester 4568 Tires | |
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Ag front | 24.5-32 |
Ag rear | 24.5-32 |
Dimensions | |
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Wheelbase | 118 inches
299 cm |
Length | 241 inches
612 cm |
Width | 116 inches
294 cm |
Shipping weight | 21900 lbs
9933 kg |
Ground clearance | 17.3 inches
43 cm |
Front axle | Bar: 3.5 inch diameter
88 mm |
Bar rear axle | 3.5 inch diameter
88 mm |
Front tread | 68 to 128 inches
172 to 325 cm |
Rear tread | 68 to 128 inches
172 to 325 cm |
International Harvester 4568 Height | |
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Hood | 94 inches
238 cm |
Cab | 132.5 inches
336 cm |
Exhaust | 143.2 inches
363 cm |
Tests
Nebraska Tractor Test 1216 | |
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Diesel 10-speed 4WD
June 11 - 19, 1976
Link: Nebraska Tractor Test 1216 file | |
Drawbar performance | |
Max power | 228.01 hp
170.0 kW |
Fuel use | 17.7 gal/hour
67.0 l/hour |
Max pull | 27995 lbs
12698 kg |
Photos
Recommended Implements & Sizing Guide
Engineering recommendations for International Harvester 4568 based on its 300 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁 | Commercial / Field Scale | High horsepower articulated/4WD field plowing. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙 | Commercial / Field Scale | Broad-acre grain tillage for high-drawbar tractors. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for International Harvester 4568.
Estimated Continuous Field Runtime: 1.1 hrs
Approximately 1.1 hours of continuous field operation at ~75% rated power on a full tank (17.7 gal / 67 L).
Engine Crankcase Oil
Transmission & Hydraulic System
Engine Cooling System
International Harvester 4568 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for International Harvester 4568.
Converted Equivalents:
Direct Competitor Comparison
Compare International Harvester 4568 against same-era industry alternatives in the same horsepower class.
International Harvester 4568
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