Fahr D90
Series: Other models
Fahr – other models: German tractors outside the named ranges, from the D 17 and D 25 to the D 30 and D 270 B, 8.8 to 123 kW, Deutz and Mercedes-Benz engines from Gottmadingen before the Deutz-Fahr merger
This page gathers the Fahr tractors the register could not assign to a named range – tractors of the brand from Gottmadingen on Lake Constance, founded in 1870 by Johann Georg Fahr as a maker of mowers and threshers, which entered tractor manufacture in the 1930s. In 1968 Fahr merged with Deutz to form Deutz-Fahr; the D types gathered here date from before that merger. The type logic is simple: D stands for diesel, the following number gives roughly the power class (D 17 around 17 hp, D 25 around 25 hp, D 30 around 30 hp), N and NA mark standard-track and four-wheel-drive versions, H the row-crop tractor with high ground clearance and narrow track, W the vineyard tractor. Early on, Fahr also sourced engines from Mercedes-Benz – the OM 636 series appears alongside the company's own Deutz engines – before the brand switched entirely to air-cooled Deutz diesels after the merger.
Read on 3 more paragraphs
The register lists here 29 versions with 8.8 to 123 kW from one- to six-cylinders of 815 to 2,660 cm³, unladen weights from 1,050 to 2,130 kg, lengths from 2,470 to 3,070 mm, widths from 1,515 to 1,800 mm and rated speeds from 1,550 to 2,000 rpm.
Alongside Deutz, Hanomag and Eicher, Fahr was one of the defining West German tractor brands of the post-war decades, with strongholds in southern Germany and exports to southern Europe; the air-cooled Deutz engines that became standard after the merger shaped the brand's technical legacy into the Deutz-Fahr era.
On used tractors, the early Mercedes-engined models call for checking the cooling system and injection pump, the air-cooled Deutz engines the condition of the blower and cooling fins, plus the state of clutch, gearbox and hydraulics and rust on sheet metal and mudguards; parts for the Deutz engines run through today's Deutz-Fahr network, for the Mercedes units only through specialists.
Sources: SpecCodex register, model data: Fahr (weitere Modelle), Deutz-Fahr
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 12 hp (8.8 kW)correct |
| Rated speed | 2,000 rpmcorrect |
| Cylinders | 1correct |
| Displacement | 905 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 2,490 mmcorrect |
|---|---|
| Width | 1,540 mmcorrect |
| Height | 1,450 mmcorrect |
| Wheelbase | 1,520 mmcorrect |
| Unladen weight | 1,050 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel driveWDcorrect |
|---|---|
| Gearbox | 5V/1R or 10V/2Rcorrect |
| Top speed | 17.8 km/hcorrect |
Working data
| Fuel tank capacity | 19 lcorrect |
|---|
Origin and approval
| Plant | Germanycorrect |
|---|
Where this model stands
Power-to-weight ratio: 8.4 kW/t (9 kW / 1.1 t)
Power class: Compact (< 40 hp)
Stronger than 2% 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 Fahr D90 have?
The Fahr D90 delivers 12 hp.
How much does the Fahr D90 weigh?
The unladen weight is 1,050 kg.
What engine does the Fahr D90 have?
1 cylinders, 905 cm³ displacement, Diesel.
How fast does the Fahr D90 go?
Top speed is 17.8 km/h.
What are the dimensions of the Fahr D90?
2,490 mm × 1,540 mm × 1,450 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 21 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
Sources: Tractor & Construction Plant Wiki (CC BY-SA 3.0) (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.
