Steyr Daimler Puch 8140 (a)
Built: 1977–1982 · Series: 80er Baureihe
More machines from model year 1977
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Steyr 8000 series: the backbone of Austrian farms, from the 8035a to the 8100 (a), 22.1 to 110.4 kW, two- to six-cylinder engines with water cooling
From 1976 the 8000 series, also known as the 80 series, replaced the Plus series and over nearly two decades became Steyr's most widely built tractor — models such as the Steyr 8090 and 8100 still shape the picture of many Austrian and Central European farms today.
Read on 4 more paragraphs
The register lists 18 live models, from the 8035a to the 8100 (a), built between 1976 and 1993. Output ranges from 22.1 to 110.4 kW, weight from 1,900 to 6,024 kg, displacement from 1,992 to 6,596 cm3, across two- to six-cylinder engines.
Typical of the 8000 series are a rugged turbodiesel four-cylinder in the mid-power classes, a synchronised gearbox with several range groups, and the comfort cab Steyr is known for.
Many examples of the 8090 and 8100 remain in everyday use today among part-time farmers, mountain farms, and as second tractors on mid-sized operations.
The wide weight range from 1.9 to just over 6 tonnes shows the 8000 series spans Category I through to Category II/III of the ISO 730 three-point linkage; the smaller 8035 to 8060 usually carry Category I, the large 8090 and 8100 already Category II. Beyond the 540 rpm PTO, the stronger models often additionally offer 1,000 rpm for implements with high power demand, such as wide-area spreaders or field sprayers. Checking which speed is actually engaged before hitching up prevents damage to an implement's own gearbox.
Sources: SpecCodex register, model data: Steyr 8000er-Baureihe, Steyr
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 120 hp (88.3 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 451 Nmcorrect |
| Speed at max. torque | 1,500 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 6,592 cm³correct |
| Bore | 108 mmcorrect |
| Stroke | 120 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,470 mmcorrect |
|---|---|
| Width | 2,267 mmcorrect |
| Height | 2,770 mmcorrect |
| Wheelbase | 2,682 mmcorrect |
| Ground clearance | 500 mmcorrect |
| Unladen weight | 4,650 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 12V/4Rcorrect |
| Front tyres | 11.00-16 ASF (A: 13.6-24 AS)correct |
| Rear tyres | 18.4-38 AScorrect |
| Top speed | 30 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Where this model stands
Power-to-weight ratio: 19 kW/t (88 kW / 4.7 t)
Power class: Large (100–180 hp)
Stronger than 74% 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 Steyr Daimler Puch 8140 (a) have?
The Steyr Daimler Puch 8140 (a) delivers 120 hp.
How much does the Steyr Daimler Puch 8140 (a) weigh?
The unladen weight is 4,650 kg.
What engine does the Steyr Daimler Puch 8140 (a) have?
6 cylinders, 6,592 cm³ displacement, Diesel.
How fast does the Steyr Daimler Puch 8140 (a) go?
Top speed is 30 km/h.
What are the dimensions of the Steyr Daimler Puch 8140 (a)?
4,470 mm × 2,267 mm × 2,770 mm.
When was the Steyr Daimler Puch 8140 (a) built?
Production years: 1977–1982.
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 23 individual figures for this model. They come from 1 recorded source; 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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Other models in this series
8035a
8045 (a)
8055 (a)
8055 a Turbo
8060 (a)
8065 (a)
8070 (a)
8075 (a)
8080 (a)
8085 a RS-2
8090 (a)
8100 (a)
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · How we check the data
Tractor in 3D section
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