Bührer 6105
Built: 1975–1978 · Series: 6
More machines from model year 1975
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
Bührer 6105: the six-cylinder tractor of the 6 range, 73.5 kW (100 hp) at 2,550 rpm, 3,730 kg unladen weight, built 1975 to 1978
Bührer, a Swiss tractor maker based in Hinwil in the canton of Zurich, built field tractors for the country's farms from the 1930s into the late 1970s, competing with brands such as Hürlimann and Meili. With the 6105 in the 6 range, the firm placed its strongest six-cylinder model in the programme from 1975 to 1978.
Read on 3 more paragraphs
The 6105 carries a water-cooled six-cylinder diesel engine of 5,675 cm³ displacement, producing 73.5 kW (100 hp) at 2,550 rpm – a comparatively large engine for a Swiss maker of this size. With an unladen weight of 3,730 kg, it reaches a top speed of 25 km/h.
At 25 km/h the 6105 falls within driving licence category L up to 40 km/h. A six-cylinder of over 5.6 litres displacement belonged in the second half of the 1970s to the top class of Swiss-built field tractors and was designed for heavy tillage and draft work with high power demands, not for light farmyard use on smaller holdings.
When buying such a heavy six-cylinder second-hand, the operating hours and the condition of the injection pump, the tightness of the engine and cooling system, and wear on the clutch and gearbox after years with heavy implements matter most. Rust on the chassis and sheet-metal parts, together with the availability of engine spare parts for this rare Swiss model, further decide the scope of work needed, and finding one can take time.
Sources: SpecCodex-Register: Kennwerte des Modells Bührer 6105
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 100 hp (73.5 kW)correct |
| Rated speed | 2,550 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 5,675 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Unladen weight | 3,730 kgcorrect |
|---|
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 15/3correct |
| Forward gears | 15correct |
| Reverse gears | 3correct |
| Top speed | 25 km/hcorrect |
Origin and approval
| Units built | 27correct |
|---|
Where this model stands
Power-to-weight ratio: 19.7 kW/t (74 kW / 3.7 t)
Power class: Universal (40–100 hp)
Stronger than 66% 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 Bührer 6105 have?
The Bührer 6105 delivers 100 hp.
How much does the Bührer 6105 weigh?
The unladen weight is 3,730 kg.
What engine does the Bührer 6105 have?
6 cylinders, 5,675 cm³ displacement, Diesel.
How fast does the Bührer 6105 go?
Top speed is 25 km/h.
When was the Bührer 6105 built?
Production years: 1975–1978.
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.
Request a quote →
We ask the suppliers and come back with price and lead time.
Request spare parts →
This page carries 15 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.