Ursus 1634 4WD
Series: Other models
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Ursus — one brand, two licences, many relatives
Anyone looking at an Ursus rarely sees a purely in-house design. The brand's history is a history of licences — and that is precisely why parts are often easier to find than the production figures would suggest.
Read on 4 more paragraphs
In 1965 the Warsaw plant began building the C-4011 under a licence agreement with Zetor in Brno. At its heart sat the S-4001 engine, the Polish version of Zetor's Z-4001. That kinship runs through the ranges: the later C-360, built from 1976 and in the programme until the end of 1994, used the S-4003, the strongest engine of that family.
In 1974 a second licence followed — the British one from Massey Ferguson, together with the associated production plant. Models such as the MF 235, MF 255 and MF 265 were then built in Poland with Perkins engines and became a fixture on many farms. The higher Ursus ranges with four-digit numbers descend from this line.
One remarkable long-runner stands out: the C-325 and its revised versions C-328 and C-330 — popularly the "thirties" — plus the C-335 export version, ran without interruption for 34 years until 1993.
When buying used it is therefore worth establishing the range's ancestry first. An Ursus from the Zetor line shares engine parts with Czech machines, one from the Massey Ferguson line with British ones. That decides where to look for components.
Sources: warzywa.pl, Wiadomości Rolnicze Polska, ursus.info.pl
Technical data
Engine
| Engine model | Z 8602.12 TURBOcorrect |
|---|---|
| Power | 157.1 hp (115.6 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 376 Nmcorrect |
| Cylinders | 6correct |
| Displacement | 6,843.2 cm³correct |
| Aspiration | turbochargedcorrect |
| Coolant capacity | 29.1 lcorrect |
| Engine oil capacity | 24.2 lcorrect |
Dimensions and weights
| Length | 4,500 mmcorrect |
|---|---|
| Width | 2,267 mmcorrect |
| Height | 3,030 mmcorrect |
| Wheelbase | 2,706 mmcorrect |
| Unladen weight | 5,190 kgcorrect |
Drivetrain and chassis
| Gearbox | 12 V/ 6 R or 16 V/8 Rcorrect |
|---|---|
| Gearbox type | mechanical gearbox, synchromesh with reductorcorrect |
| Forward gears | 16correct |
| Reverse gears | 8correct |
| Tyre size | front 14.9R28 rear 20.8R38correct |
| Top speed | 31.4 km/hcorrect |
Working data
| Lifting capacity | 5,500 kgcorrect |
|---|---|
| Pump flow | 55.3 l/mincorrect |
| Hydraulic oil capacity | 46.2 lcorrect |
| Hydraulic pressure | 160 barcorrect |
| Fuel tank capacity | 170.3 lcorrect |
Other data
| Cab height | 2,984 mmcorrect |
|---|---|
| Linkage category | Cat II/IIIcorrect |
| PTO output | 140 hpcorrect |
| PTO speed | 540/1000 rpmcorrect |
| System voltage | 14 Vcorrect |
Where this model stands
Power-to-weight ratio: 22.3 kW/t (116 kW / 5.2 t)
Power class: Large (100–180 hp)
Stronger than 85% 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 Ursus 1634 have?
The Ursus 1634 delivers 157 hp.
How much does the Ursus 1634 weigh?
The unladen weight is 5,190 kg.
What engine does the Ursus 1634 have?
6 cylinders, 6,843 cm³ displacement.
How fast does the Ursus 1634 go?
Top speed is 31.4 km/h.
What is the PTO output of the Ursus 1634?
PTO output is 140 hp. PTO speeds: 540/1000 rpm.
How much does the rear linkage of the Ursus 1634 lift?
The rear linkage lifts 5,500 kg.
What are the dimensions of the Ursus 1634?
4,500 mm × 2,267 mm × 3,030 mm.
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.
- 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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 32 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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Other models in this series
(FarmAll Technology) 2812
(FarmAll Technology) 3512
(FarmAll Technology) 4512
1.002 / 1.004
1.012 / 1.014
1.201 / 1.204
1.604
1012
1014
1014 de luxe
1044
1122 / 1124
Sources: RitchieSpecs equipment specifications (retrieved August 2026) · Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved September 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
