Technical register for agricultural, construction and commercial machinery · sourced data
Start › Tractors › Utb/universal › Other models › U-643 DT

Utb/universal U-643 DT

Built: 1988–2004 · Series: Other models

More machines from model year 1988

Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required

The Utb/universal U-643 DT is a model in the Pozostałe modele series. Production: 1988–2004. The engine delivers 64 hp (47.1 kW), has 4 cylinders, with a displacement of 3,595 cm³. Torque is 214 Nm. Rated speed is 2,400 rpm. The machine is 3,770 mm long, 1,839 mm wide and 2,500 mm high. The unladen weight is 3,125 kg. The wheelbase measures 2,270 mm. Ground clearance is 320 mm. Top speed is 25 km/h. Transmission: 12 V/3 R. The engine is water-cooled. Tyres: front 9.50-24 AS, rear 16.9-30 AS. The fuel is diesel. The bore measures 102 mm. The stroke is 110 mm. The compression ratio is 17:1. Maximum torque is reached at 1,200 rpm. Construction: unit construction (no separate frame). Rated output across the Utb/universal range ranges from 27 to 105 hp; the U-643 DT sits in the middle of that range with 64 hp. Its immediate neighbours are the U-553 DT below it with 55 hp and the U-650/651 M above it with 65 hp. Rated output across the Utb/universal range ranges from 19.9 to 77.2 kW; here the U-643 DT sits in the middle of that range with 47.1 kW. 19 Utb/universal models across 7 series are on record.

UTB Universal – other models: the collective page of the Romanian Fiat licensee Tractorul Braşov, U-300 to U-703 DT, 20 to 52 kW

This page gathers the UTB Universal tractors the register could not assign to a named range – the tractors of the Romanian maker Tractorul Braşov, which built under licence from Fiat and sold worldwide under the export brand Universal, or UTB. The types 445 DTC, U-300, U-643 DT, U-650/651 M and U-703 DT give the power class roughly in the number, DT marks four-wheel drive, M an equipment variant.

Read on 3 more paragraphs

The register lists here 5 versions with 19.9 to 51.5 kW from two- to four-cylinders of 1,559 to 4,764 cc, unladen weights from 1,591 to 3,380 kg, lengths from 2,805 to 3,970 mm, widths from 1,545 to 1,939 mm and heights from 1,490 to 2,500 mm, torque from 77 to 289 Nm at rated speeds of 1,800 to 2,400 rpm.

Tractorul Braşov was one of the biggest tractor makers of the Eastern Bloc and exported the Universal tractors in large numbers to Western Europe too, where they were sold under the UTB name as an affordable alternative to Western brands; the Fiat-licence origin shows in the design and engine layout of many models.

On the UTB Universal tractors, what counts is the condition and compression of the diesel engine, the condition of the four-wheel-drive clutch and axle on the DT models, the tightness of the hydraulics and lift, and rust on bodywork and cab; parts for these once mass-produced tractors are partly still available through Eastern European dealers.

Sources: SpecCodex register, model data: UTB Universal (weitere Modelle)

Technical data

Engine

Fueldieselcorrect
Power64 hp (47.1 kW)correct
Rated speed2,400 rpmcorrect
Torque214 Nmcorrect
Speed at max. torque1,200 rpmcorrect
Cylinders4correct
Displacement3,595 cm³correct
Bore102 mmcorrect
Stroke110 mmcorrect
Compression ratio17correct
Coolingwater-cooledcorrect

Dimensions and weights

Length3,770 mmcorrect
Width1,839 mmcorrect
Height2,500 mmcorrect
Wheelbase2,270 mmcorrect
Ground clearance320 mmcorrect
Unladen weight3,125 kgcorrect

Drivetrain and chassis

Drivefour-wheel drivecorrect
Gearbox12 V/3 Rcorrect
Front tyres9.50-24 AScorrect
Rear tyres16.9-30 AScorrect
Top speed25 km/hcorrect

Origin and approval

Constructionunit construction (no separate frame)correct

Where this model stands

Power-to-weight ratio: 15.1 kW/t (47 kW / 3.1 t)

Power class: Universal (40–100 hp)

Stronger than 44% 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 Utb/universal U-643 DT have?

The Utb/universal U-643 DT delivers 64 hp.

How much does the Utb/universal U-643 DT weigh?

The unladen weight is 3,125 kg.

What engine does the Utb/universal U-643 DT have?

4 cylinders, 3,595 cm³ displacement, Diesel.

How fast does the Utb/universal U-643 DT go?

Top speed is 25 km/h.

What are the dimensions of the Utb/universal U-643 DT?

3,770 mm × 1,839 mm × 2,500 mm.

When was the Utb/universal U-643 DT built?

Production years: 1988–2004.

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.

Looking for this machine?
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
Request a quote →
Need parts for this model?
We ask the suppliers and come back with price and lead time.
Request spare parts →

This page carries 24 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.

Missing a figure you were looking for? Report it →

Know this machine better? Have a photo, a manual, or know that a figure is wrong? Add it to the register →

Other models in this series

Sources: [1]

Tractor in 3D section

Turn the model, look inside and click an assembly — each one is explained.

Compare