Zetor 5911/5945
Built: 1977–1980 · Series: Serie-9 (UR-1)
More machines from model year 1977
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Zetor 5911/5945 (Series 9, UR-1) – Czech tractor built 1977 to 1980: four-cylinder diesel of 3,456 cc, 58 hp and 42.7 kW, 190 Nm torque, 2,810 kg weight, top speed of 25 km/h
Zetor is a Czech tractor maker based in Brno. The 5911/5945 belongs to Series 9, also known as the UR-1 generation, built between 1977 and 1980 and ranking among the most widespread Zetor lines across Central and Eastern Europe.
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The water-cooled four-cylinder diesel engine has a displacement of 3,456 cc and produces 58 hp, or 42.7 kW, at 2,200 rpm, with 190 Nm of torque. At 3,555 mm long, 1,853 mm wide, 2,445 mm high, with a 2,220 mm wheelbase and 2,810 kg weight, the tractor reaches a design top speed of 25 km/h.
Series 9 was designed as a versatile standard tractor for medium-sized farms and, at around 58 hp, covered a broad range of tasks from tillage to haulage. This line's wide distribution in the late 1970s made it one of the defining tractors of its era across many Eastern Bloc countries.
When buying a Series 9 Zetor, the condition of the clutch, the tightness of the hydraulic system and corrosion on the load-bearing sheet-metal parts, common after decades of use, matter most. As this line was built in large numbers, parts for the engine, gearbox and axles remain comparatively easy to source today. A test run under load also shows whether the hydraulic pump still builds enough pressure for the three-point hitch, and whether the clutch engages smoothly across its full travel.
Sources: SpecCodex-Register: Kennwerte des Modells Zetor 5911/5945 (Serie 9, UR-1)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 58 hp (42.7 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 190 Nmcorrect |
| Speed at max. torque | 1,577 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 3,456 cm³correct |
| Bore | 100 mmcorrect |
| Stroke | 110 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,555 mmcorrect |
|---|---|
| Width | 1,853 mmcorrect |
| Height | 2,445 mmcorrect |
| Wheelbase | 2,220 mmcorrect |
| Ground clearance | 480 mmcorrect |
| Unladen weight | 2,810 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 10 V/2 R or 20 V/4 Rcorrect |
| Front tyres | 7.50-16 ASF (A: 11.2-24 AS)correct |
| Rear tyres | 16.9-30 AScorrect |
| Top speed | 25 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Where this model stands
Power-to-weight ratio: 15.2 kW/t (43 kW / 2.8 t)
Power class: Universal (40–100 hp)
Stronger than 40% 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 5911/5945 have?
The Zetor 5911/5945 delivers 58 hp.
How much does the Zetor 5911/5945 weigh?
The unladen weight is 2,810 kg.
What engine does the Zetor 5911/5945 have?
4 cylinders, 3,456 cm³ displacement, Diesel.
How fast does the Zetor 5911/5945 go?
Top speed is 25 km/h.
What are the dimensions of the Zetor 5911/5945?
3,555 mm × 1,853 mm × 2,445 mm.
When was the Zetor 5911/5945 built?
Production years: 1977–1980.
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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Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (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.
