International Harvester FARMALL-LETTERS-Baureihe

The register lists 6 versions with 14 to 27.2 kW from four-cylinder engines of 1,853 to 4,059 cm³ at 1,400 to 1,650 rpm, kerb weights of 830 to 2,404 kg, lengths of 2,699 to 3,381 mm, widths of 1,419 to 2,146 mm and heights of 1,607 to 1,988 mm; the models mostly ran on distillate, kerosene or petrol, one on diesel.

With the Farmall Letters series, IH set the standard for the post-war row-crop tractor in North America - the letter in the model name became synonymous with an entire tractor generation that replaced pre-war narrow-front designs. The A and B were found on smaller farms and in orchards and vineyards, while the H and especially the M ranked among the most widely built American tractors of their era.

On a used example of these petrol/kerosene engines, check the cylinder head and carburettor; on the MD, also the starting system with its petrol pony motor and changeover valve; the belt pulley, steering gear and brakes; and corrosion on sheet metal and the seat mount. Parts supply through collectors and reproduction makers is as good for the Farmall Letters as for almost any other tractor series.