Lamborghini / Slh R-1256 (DT)
Built: 1978–1984 · Series: 56 er-Baureihe
More machines from model year 1978
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Lamborghini SLH 56 Series – large tractors from Pieve di Cento, R-1156 DT to R-1556 DT, six-cylinder engines from 6.2 to 6.8 litres, 85 to 114 kW, DT denoting four-wheel drive
Lamborghini Trattori built the SLH 56 Series at its Pieve di Cento plant near Bologna; the four models R-1156, R-1256, R-1356 and R-1556 all carry the DT (Doppia Trazione) designation for the four-wheel-drive version. All versions run six-cylinder diesel engines between 6.2 and 6.8 litres displacement. Ferruccio Lamborghini sold the tractor division to SAME in 1972, which continued production at Pieve di Cento and still assembles Lamborghini tractors there today.
Read on 3 more paragraphs
The register lists here 4 versions with 84.6 to 114 kW rated output at 2,200 to 2,300 rpm. Unladen weights range from 4,340 to 6,300 kg, maximum torque from 404 to 588 Nm. Length, width and height fall between 4,240 and 4,525 mm, 2,275 and 2,420 mm, and 2,720 and 2,800 mm.
As large six-cylinder tractors, the SLH 56 Series occupied Lamborghini's upper power segment; the marque has belonged to the SAME Group since the 1970s and later to the SDF Group, sharing the same engine and transmission technology as Same and Hürlimann. Within the SDF Group, Lamborghini shares engines, transmissions and axles with its sister brands, while retaining its own cab and body styling.
When buying used, check the hours and service history of the six-cylinder, the condition of clutch and gearbox, the tightness of the hydraulics, and the drive hub and front axle on DT versions. Parts run through the SDF Group dealer network. as well as the brakes, steering and cab-suspension seals.
Sources: SpecCodex register, model data: Lamborghini SLH 56er-Baureihe, Lamborghini Trattori (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 125 hp (91.9 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 420 Nmcorrect |
| Speed at max. torque | 1,510 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 6,234 cm³correct |
| Bore | 105 mmcorrect |
| Stroke | 120 mmcorrect |
| Compression ratio | 17.5correct |
| Injection pressure | 185 barcorrect |
| Cooling | air-cooledcorrect |
Dimensions and weights
| Length | 4,240 mmcorrect |
|---|---|
| Width | 2,350 mmcorrect |
| Height | 2,720 mmcorrect |
| Wheelbase | 2,725 mmcorrect |
| Ground clearance | 540 mmcorrect |
| Unladen weight | 4,620 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 12 V/3 R or 16 V/4 Rcorrect |
| Front tyres | 9.50-20 ASF (DT: 14.9-28 AS)correct |
| Rear tyres | 18.4-38 AScorrect |
| Top speed | 25 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Where this model stands
Power-to-weight ratio: 19.9 kW/t (92 kW / 4.6 t)
Power class: Large (100–180 hp)
Stronger than 76% 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 Lamborghini / Slh R-1256 (DT) have?
The Lamborghini / Slh R-1256 (DT) delivers 125 hp.
How much does the Lamborghini / Slh R-1256 (DT) weigh?
The unladen weight is 4,620 kg.
What engine does the Lamborghini / Slh R-1256 (DT) have?
6 cylinders, 6,234 cm³ displacement, Diesel.
How fast does the Lamborghini / Slh R-1256 (DT) go?
Top speed is 25 km/h.
What are the dimensions of the Lamborghini / Slh R-1256 (DT)?
4,240 mm × 2,350 mm × 2,720 mm.
When was the Lamborghini / Slh R-1256 (DT) built?
Production years: 1978–1984.
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) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
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