Wille GERW-Diesel-Stier
2 models in this series
Wille GERW-Diesel-Stier: the diesel version of the Hamburg-Bergedorf motor plough Stier, Type 20 and Type 21 with single- and twin-cylinder diesel engine, 1.0 to 2.0 litres displacement, 1,400 to 1,650 kg unladen weight
This page lists the diesel version of the Stier motor plough from the Hamburg farm-machinery maker Georg R. Wille, built in Hamburg-Bergedorf between the 1920s and 1950s. The GERW-Diesel-Stier was a single-axle motor plough for tillage in agriculture and horticulture, offered in two versions: the Type 20 with a single-cylinder diesel engine and the Type 21 with a twin-cylinder engine whose displacement is exactly double that of the Type 20.
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The register lists here 2 versions with 1,020 to 2,040 cm³ displacement from one to two cylinders, unladen weights of 1,400 to 1,650 kg, lengths of 2,400 to 2,600 mm, a width of 1,500 mm and heights of 1,550 to 1,585 mm; the engines run at 1,300 or 1,500 revolutions per minute.
Motor ploughs such as the Stier replaced the working horse on smaller and medium-sized farms across much of the first half of the twentieth century, before standard tractors increasingly displaced them from the 1950s; north German makers such as Wille served mainly the regional market in agriculture and horticulture with robust, simply built motor ploughs.
When buying one of these historic machines used, the condition of engine and injection pump, rust on the frame and sheet metal, the function of clutch and gearbox, and the completeness of plough and attachments count; spare parts today can only be sourced through specialist collectors and restorers of historic farm machinery.
Sources: SpecCodex register, model data: Wille GERW-Diesel-Stier
Models
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
