Bührer M/N Standard
1 model in this series
Bührer MS 12: four-cylinder diesel of the M/N Standard range, 38 hp, about 1,480 units built, 1,540 kg unladen weight, built 1960 to 1963
Bührer, a Swiss tractor maker based in Hinwil in the canton of Zurich, ran the M/N 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 MS 12 was built from 1960 to 1963 and, with around 1,480 units produced, ranks among the marque's most-built models.
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The MS 12 carries a water-cooled four-cylinder diesel engine of 2,260 cm³ displacement with rear-wheel drive, producing 38 hp; a choice of gearbox was offered, with 10 speeds (Tryplex) or 15 speeds (a revision gearbox). With an unladen weight of 1,540 kg, it reaches a top speed of 25 km/h.
At 25 km/h the MS 12 falls within driving licence category L up to 40 km/h. As a Standard version, the MS 12 was built for simple, rugged technology rather than comfort or peak output, aimed at smaller to medium Swiss farms for which a four-cylinder diesel of this size covered everyday field and transport work rather than heavy tillage.
When buying second-hand, the operating hours and the condition of the injection pump, wear on the clutch and the chosen gearbox (Tryplex or revision), and rust on the chassis and sheet-metal parts matter. Because the MS 12 was built in comparatively large numbers, spare parts are somewhat easier to find despite its age than for rarer Bührer models, though still mostly through specialist collectors.
Sources: SpecCodex-Register: Kennwerte des Modells Bührer MS 12
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