Deutz D 40 – D 80

The largest model of the new Deutz lineup introduced in 1958 was initially the D 40, which had a 35-horsepower 712-series engine. The front axle was suspended. There was also an S version of the D 40, which featured, among other things, larger wheels, an 8+2 gearbox, and a power take-off independent of the driving clutch. The model topped the sales charts in Germany.

In 1960, the D 50 was launched, with a power output of 46 hp and 7+3 gears. Two years later, it was replaced by the D 55 with 52 horsepower, featuring a stronger 8+4 gearbox, a new rear axle and hydraulics, and a redesigned dashboard. In 1962, a lightweight D 40 S was also introduced, based on the technology of the D 30 and the engine of the D 40.

In 1964, the 6-cylinder D 80 was introduced, with a new 812-series engine. The technical innovation of the D 80 was hydrostatic steering. The other 1964 models also featured new engines. The 65-horsepower F 4 L 514/7 was never updated to the D series; instead, it was sold until 1965 under the name Deutz 65 PS.

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