Uzina Tractorul 420 (DT)
Built: 1974–1981 · Series: 400
More machines from model year 1974
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Uzina Tractorul 400 – the Fiat-licence range from Brașov: 420 (DT) and R-450 (DT), 30.8 to 33.8 kW, 2,338 cc three-cylinder, four-wheel-drive versions marked DT
Uzina Tractorul Brașov (UTB) began tractor production in 1946 in Brașov, Romania, and built its Universal range on a Fiat licence; the three-cylinder diesel of this 400 series traces back to that Fiat technology. The DT suffix in the designations 420 (DT) and R-450 (DT) stands for dublă tracțiune, i.e. four-wheel drive, as distinct from the more simply driven base versions.
Read on 3 more paragraphs
The register lists 2 variants at 30.8 to 33.8 kW from a three-cylinder diesel of 2,338 cc, kerb weights of 1,640 to 1,800 kg, lengths of 3,110 to 3,140 mm, widths of 1,666 to 1,730 mm, heights of 1,455 to 2,200 mm, torque of 143 to 147 Nm and rated speeds of 2,200 to 2,400 rpm.
From Brașov, UTB exported its tractors on a large scale to the Eastern Bloc, Africa, Asia and Latin America; simple engineering and four-wheel-drive versions such as the DT models listed here made the range usable on unpaved and hilly ground too.
Buying one of these three-cylinder tractors, the condition of the injection pump and compression matter, along with wear on the clutch and gearbox and, on the four-wheel-drive version, the front axle and transfer case, plus rust on the frame and sheet metal; parts are found mainly through Eastern European farm-machinery dealers and forums, where owners of these widely exported tractors regularly trade spares.
Sources: SpecCodex register, model data: Uzina Tractorul 400
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 42 hp (30.8 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 147 Nmcorrect |
| Speed at max. torque | 1,400 rpmcorrect |
| Cylinders | 3correct |
| Displacement | 2,338 cm³correct |
| Bore | 95 mmcorrect |
| Stroke | 110 mmcorrect |
| Compression ratio | 17correct |
| Injection pressure | 225 barcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,110 mmcorrect |
|---|---|
| Width | 1,730 mmcorrect |
| Height | 2,200 mmcorrect |
| Wheelbase | 1,900 mmcorrect |
| Ground clearance | 530 mmcorrect |
| Unladen weight | 1,640 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 6 V/2 R or 9 V/3 Rcorrect |
| Front tyres | 6.00-16 ASF (DT: 7.50-20 AS)correct |
| Rear tyres | 14.9-28 AScorrect |
| Top speed | 25 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Where this model stands
Power-to-weight ratio: 18.8 kW/t (31 kW / 1.6 t)
Power class: Universal (40–100 hp)
Stronger than 27% 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 Uzina Tractorul 420 (DT) have?
The Uzina Tractorul 420 (DT) delivers 42 hp.
How much does the Uzina Tractorul 420 (DT) weigh?
The unladen weight is 1,640 kg.
What engine does the Uzina Tractorul 420 (DT) have?
3 cylinders, 2,338 cm³ displacement, Diesel.
How fast does the Uzina Tractorul 420 (DT) go?
Top speed is 25 km/h.
What are the dimensions of the Uzina Tractorul 420 (DT)?
3,110 mm × 1,730 mm × 2,200 mm.
When was the Uzina Tractorul 420 (DT) built?
Production years: 1974–1981.
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 25 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
Turn the model, look inside and click an assembly — each one is explained.
