Zetor 10111/10145
Built: 1984–1990 · Series: 1 er-CRYSTAL (UR 2)
More machines from model year 1984
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The Zetor Crystal — what defines this series
The Zetor 8111 delivers 82 hp (60.3 kW) from 4.6 litres across four cylinders. Its peak torque of 257 Nm arrives at just 1,200 rpm — very low, and that is what makes the machine forgiving in the field: it pulls through instead of having to be revved. Rated power comes at 2,200 rpm.
Read on 4 more paragraphs
The numbering is not arbitrary. Across the Crystal range the second-to-last digit marks the drivetrain: an 8111 is rear-wheel drive, an 8145 the same tractor with four-wheel drive. Anyone searching for one usually means both — technically only the front axle separates them. The same scheme runs through the whole series, from the 9111/9145 to the 12111/12145.
The Crystal range was not built in Brno but at the Slovak plant in Martin, where the heavier Zetor models ran from 1981. In 1984 the series was reworked into what became the 1st series: a new bonnet with a bevelled front, a revised cab with five work lamps, a larger clutch (350 mm on the four-cylinder models, 380 mm on the six-cylinder ones) and a reworked injection pump that lightened the clutch pedal. Four-wheel drive works through a hydraulically actuated multi-plate clutch.
In 1987 the 2nd series followed with a synchronised gearbox. Anyone buying a Crystal today should therefore check the year: the unsynchronised 1st series asks for more feel when shifting. As standard the 8111 has sixteen forward and eight reverse gears; creeper gears were available at extra cost.
Durability remains an open question. Even in its day the 8145 was considered less robust than the older 8011 models it grew out of — a verdict that persists in owner forums to this day. Hard figures do not exist, but parts supply does: several suppliers still serve the Crystal range with new components.
Sources: Traktorenlexikon (Wikibooks), TractorData, Zetor Club
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 100 hp (73.5 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 308 Nmcorrect |
| Speed at max. torque | 1,740 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 4,561 cm³correct |
| Bore | 110 mmcorrect |
| Stroke | 110 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,140 mmcorrect |
|---|---|
| Width | 1,940 mmcorrect |
| Height | 2,655 mmcorrect |
| Wheelbase | 2,385 mmcorrect |
| Ground clearance | 300 mmcorrect |
| Unladen weight | 4,270 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 16 V/8 Rcorrect |
| Forward gears | 16correct |
| Reverse gears | 8correct |
| Front tyres | 7.50-20 ASF (A: 12.4-24 AS)correct |
| Rear tyres | 16.9-38 AScorrect |
| Top speed | 30 km/hcorrect |
Working data
| Fuel tank capacity | 125 lcorrect |
|---|
Origin and approval
| Construction | semi-frame constructioncorrect |
|---|
Other data
| Linkage category | Cat IIcorrect |
|---|---|
| PTO speed | 540/1000 rpmcorrect |
Where this model stands
Power-to-weight ratio: 17.2 kW/t (74 kW / 4.3 t)
Power class: Universal (40–100 hp)
Stronger than 66% 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 Zetor 10111/10145 have?
The Zetor 10111/10145 delivers 100 hp.
How much does the Zetor 10111/10145 weigh?
The unladen weight is 4,270 kg.
What engine does the Zetor 10111/10145 have?
4 cylinders, 4,561 cm³ displacement, Diesel.
How fast does the Zetor 10111/10145 go?
Top speed is 30 km/h.
What are the dimensions of the Zetor 10111/10145?
4,140 mm × 1,940 mm × 2,655 mm.
When was the Zetor 10111/10145 built?
Production years: 1984–1990.
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 29 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
Sources: [1]
Tractor in 3D section
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