The 40-series European tractors were introduced at the end of 1979. The engine range had been rationalized, but the power classes remained roughly the same. The transmission was the familiar 8+4 (with a Hi-Lo quick-shift option, making it 16+8), but it was now synchronized. The quick-shift had been developed so that the tractor could now be started by towing and parked with the gear engaged.

The four-wheel drive was now mechanically implemented with better efficiency, like other brands. The front axle was a ZF-made central driveshaft version, and a limited-slip differential was an optional extra. Hydraulic pressure was increased from 16 MPa to 18.6 MPa, but hydraulic output was slightly reduced. John Deere reported lifting forces with the lift in the raised position, in which case the figures are about 15% higher than in the horizontal position. Draft sensing was a rather rare feature in this size category.

The cab was still the Sekura product used by many brands, and the gear levers were placed in the center.

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