International Harvester 4568
Built: 1975–1976 · Series: 68 er-Serie
More machines from model year 1975
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International Harvester 4568: water-cooled eight-cylinder diesel engine with 13,077 cc displacement, 231 hp (169.9 kW), 983 Nm torque as a heavy articulated tractor
The 4568 belonged to International Harvester's series of heavy, articulated four-wheel-drive tractors, built for the vast agricultural acreages of North America and going well beyond the size of classic standard tractors.
Read on 3 more paragraphs
The water-cooled eight-cylinder diesel engine of 13,077 cc produces 231 hp (169.9 kW) at 2,600 rpm and 983 Nm of torque. At an unladen weight of 11,680 kilograms, a wheelbase of 2,997 millimetres and a width of 2,946 millimetres, the 4568 is among the heaviest and widest of the series considered here.
An eight-cylinder engine of over 13 litres belongs to an entirely different world of work than the smaller four- and six-cylinder models of the same brand: such machines were designed for large-scale tillage with heavy trailed implements, not for use on small and medium-sized farms. Articulated steering — turning through a joint in the frame rather than through front-axle knuckles — is common on tractors of this size, as it allows large driven wheels on both axles without a knuckle-steering system.
When buying an articulated tractor of this size, the condition of the articulation joint and its bearings should be checked, along with the tightness of the hydraulics and axle drives. On an eight-cylinder engine of this displacement, compression in each cylinder and the condition of the injection pump also matter, since repairs to an engine of this size are correspondingly costly.
Sources: SpecCodex-Register: Kennwerte des Modells 4568
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 231 hp (169.9 kW)correct |
| Rated speed | 2,600 rpmcorrect |
| Torque | 983 Nmcorrect |
| Speed at max. torque | 1,800 rpmcorrect |
| Cylinders | 8correct |
| Displacement | 13,077 cm³correct |
| Bore | 134.94 mmcorrect |
| Stroke | 114.3 mmcorrect |
| Compression ratio | 15.6correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 6,121 mmcorrect |
|---|---|
| Width | 2,946 mmcorrect |
| Height | 3,251 mmcorrect |
| Wheelbase | 2,997 mmcorrect |
| Ground clearance | 439 mmcorrect |
| Unladen weight | 11,680 kgcorrect |
Drivetrain and chassis
| Drive | four-wheel drivecorrect |
|---|---|
| Gearbox | 10 V/2 Rcorrect |
| Front tyres | 20.8-38correct |
| Rear tyres | 20.8-38correct |
| Top speed | 35 km/hcorrect |
Origin and approval
| Construction | articulated framecorrect |
|---|---|
| Units built | 858correct |
Where this model stands
Power-to-weight ratio: 14.5 kW/t (170 kW / 11.7 t)
Power class: Heavy (> 180 hp)
Stronger than 94% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the International Harvester 4568 have?
The International Harvester 4568 delivers 231 hp.
How much does the International Harvester 4568 weigh?
The unladen weight is 11,680 kg.
What engine does the International Harvester 4568 have?
8 cylinders, 13,077 cm³ displacement, Diesel.
How fast does the International Harvester 4568 go?
Top speed is 35 km/h.
What are the dimensions of the International Harvester 4568?
6,121 mm × 2,946 mm × 3,251 mm.
When was the International Harvester 4568 built?
Production years: 1975–1976.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 25 individual figures for this model. They come from 2 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Wikipedia (retrieved August 2026) · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
