Zetor 6320/6340
Built: 1993–2007 · Series: 92 er-Serie (UR-1)
More machines from model year 1993
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Zetor 92 series (UR I) – five Czechoslovak tractors from the 1980s, 3320/3340 to 7320/7340: 37.5 to 59.6 kW (51 to 81 hp), three- and four-cylinder diesels, 2,880 to 3,200 kg
The Unified Range I (UR I) was the Czechoslovak brand's standard range, built in the 1980s at the then Zetor plant in Brno, and it is also where the types gathered here, 3320/3340, 4320/4340, 5320/5340, 6320/6340 and 7320/7340, come from. The first digit of the type designation orders the size in ascending order, while the four-digit pairs denote closely related versions of the same base types. The engines are three- and four-cylinder diesels.
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The register lists here 5 versions with 37.5 to 59.6 kW (51 to 81 hp) from three- and four-cylinder engines of 2,696 to 3,922 cm³ and torque from 158 to 281 Nm at a rated speed of 2,200 rpm. Unladen weights range from 2,880 to 3,200 kg, length from 3,605 to 3,755 mm, width from 1,800 to 1,875 mm and height from 2,615 to 2,675 mm.
For decades the UR I range was the backbone of agriculture across the former Eastern Bloc and was also exported in large numbers to Western markets, where its low price and simple, repair-friendly technology found buyers. Its rugged mechanics without elaborate electronics also made the range attractive for self-service workshops.
Buying used Zetor UR I models calls for checking the clutch and gearbox, the tightness of the hydraulics and corrosion on the wings and cab after decades of service. Thanks to the large numbers built and the simple construction, parts remain well available today through Zetor specialists and aftermarket suppliers.
Sources: SpecCodex register, model data: Zetor 92er-Serie (UR I), Zetor (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 73 hp (53.7 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 247 Nmcorrect |
| Speed at max. torque | 1,600 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 3,922 cm³correct |
| Bore | 102 mmcorrect |
| Stroke | 110 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,605 mmcorrect |
|---|---|
| Width | 1,854 mmcorrect |
| Height | 2,675 mmcorrect |
| Wheelbase | 2,257 mmcorrect |
| Ground clearance | 571 mmcorrect |
| Unladen weight | 3,025 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 10 V/2 R, 20 V/4 R or 10 V/10 Rcorrect |
| Front tyres | 7.50-20 ASF (A: 12.4-24 AS)correct |
| Rear tyres | 16.9-34 AScorrect |
| Top speed | 25 km/hcorrect |
Working data
| Fuel tank capacity | 70 lcorrect |
|---|
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Other data
| Linkage category | Cat IIcorrect |
|---|---|
| PTO speed | 540/1000 rpmcorrect |
Where this model stands
Power-to-weight ratio: 17.8 kW/t (54 kW / 3 t)
Power class: Universal (40–100 hp)
Stronger than 50% 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 6320/6340 have?
The Zetor 6320/6340 delivers 73 hp.
How much does the Zetor 6320/6340 weigh?
The unladen weight is 3,025 kg.
What engine does the Zetor 6320/6340 have?
4 cylinders, 3,922 cm³ displacement, Diesel.
How fast does the Zetor 6320/6340 go?
Top speed is 25 km/h.
What are the dimensions of the Zetor 6320/6340?
3,605 mm × 1,854 mm × 2,675 mm.
When was the Zetor 6320/6340 built?
Production years: 1993–2007.
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 27 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: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · How we check the data
Tractor in 3D section
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