Bührer OP-17 STANDARD (A)
Built: 1969–1975 · Series: O-STANDARD
More machines from model year 1969
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Bührer OP-17 Standard: four-cylinder diesel of the O-Standard range, 33.8 kW (46 hp), 208 Nm torque, 2,110 kg unladen weight, built 1969 to 1975
Bührer, a Swiss tractor maker based in Hinwil in the canton of Zurich, ran the O range as a simpler Standard line alongside more elaborate Super ranges such as G-Super or P-Super, competing with brands such as Hürlimann and Meili. The OP-17 STANDARD (A) was built from 1969 to 1975, alongside the marque's more powerful Super models.
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The OP-17 carries a water-cooled four-cylinder diesel engine of 3,325 cm³ displacement, producing 33.8 kW (46 hp) at 1,800 rpm and developing 208 Nm of torque. With an unladen weight of 2,110 kg, a length of 3,220 mm, a width of 1,640 mm, a height of 1,650 mm and a wheelbase of 2,030 mm, it reaches a top speed of 25 km/h.
At 25 km/h the OP-17 falls within driving licence category L up to 40 km/h. As a Standard version, the OP-17 at 46 hp covered the lower mid class of Bührer's programme at the time, well below the six-cylinder models built in the same years, such as the 100 hp GM-29 Super-Six, and was built for everyday field and yard work on smaller farms rather than heavy tillage.
When buying 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 matter. Rust on the chassis and sheet-metal parts, together with the supply of spare parts for this rarer Standard model, further decide the scope of repair work, and the search usually takes longer than for more common models.
Sources: SpecCodex-Register: Kennwerte des Modells Bührer OP-17 STANDARD (A)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 46 hp (33.8 kW)correct |
| Rated speed | 1,800 rpmcorrect |
| Torque | 208 Nmcorrect |
| Speed at max. torque | 1,200 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 3,325 cm³correct |
| Bore | 91.44 mmcorrect |
| Stroke | 127 mmcorrect |
| Compression ratio | 18.5correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,220 mmcorrect |
|---|---|
| Width | 1,640 mmcorrect |
| Height | 1,650 mmcorrect |
| Wheelbase | 2,030 mmcorrect |
| Unladen weight | 2,110 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 15 V/3 Rcorrect |
| Forward gears | 15correct |
| Reverse gears | 3correct |
| Front tyres | 6.50-16 ASF (A: 7.50-18 AS)correct |
| Rear tyres | 12-28 AS (A: 11-32)correct |
| Top speed | 25 km/hcorrect |
Origin and approval
| Construction | combined frame and unit constructioncorrect |
|---|---|
| Units built | 917 (A: 49)correct |
Other data
| Linkage category | Cat Icorrect |
|---|
Where this model stands
Power-to-weight ratio: 16 kW/t (34 kW / 2.1 t)
Power class: Universal (40–100 hp)
Stronger than 30% 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 OP-17 STANDARD (A) have?
The Bührer OP-17 STANDARD (A) delivers 46 hp.
How much does the Bührer OP-17 STANDARD (A) weigh?
The unladen weight is 2,110 kg.
What engine does the Bührer OP-17 STANDARD (A) have?
4 cylinders, 3,325 cm³ displacement, Diesel.
How fast does the Bührer OP-17 STANDARD (A) go?
Top speed is 25 km/h.
What are the dimensions of the Bührer OP-17 STANDARD (A)?
3,220 mm × 1,640 mm × 1,650 mm.
When was the Bührer OP-17 STANDARD (A) built?
Production years: 1969–1975.
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 28 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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