International Deering D-Serie
2 models in this series
International-Deering D-20 and D-25 – heavy single-cylinder paraffin tractors from 1930s Neuss, 290 rpm, unladen weight from 6,441 to 7,643 kg
The Deering name goes back to the Deering Harvester Company, which merged with McCormick in 1902 to form International Harvester; in Europe, and especially at the Neuss plant, International kept the Deering name on part of its tractor line into the 1930s and 1950s before the brand merged fully into the International name. The D-20 and D-25 are heavy, single-cylinder paraffin tractors from this transitional period, running at very low speed as was typical of engine design in the 1920s and 1930s. After the merger with Case in 1985, the Neuss site remained a plant for combine harvesters, while tractor production moved to other Case IH locations.
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The register lists 2 versions of 14.9 to 18.6 kW from a single cylinder at 290 rpm, unladen weights from 6,441 to 7,643 kg and widths from 2,210 to 2,438 mm; both run on paraffin.
Such slow-running single-cylinder paraffin tractors were common between the wars on large arable farms and for driving stationary machinery, such as threshers, via a belt pulley, before lighter, faster-running multi-cylinder engines displaced them from the 1930s.
Surviving D-20 and D-25 tractors are collectors' pieces today; on a used example what counts is the condition of cylinder and piston, tightness of the cooling system, the state of the belt pulley and ignition magneto, and rust on the massive cast chassis.
Sources: SpecCodex register, model data: International-Deering D-Serie
Models
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
