At the larger end of the 90 series, there was more newness compared to the smaller models. The 6-cylinder 1690 was an entirely new model. It featured the more powerful hydraulics known from the earlier 1410, equipped with two external hydraulic control valves and a lift auxiliary cylinder, as well as a new free-breathing engine. The 1690 was the best-selling tractor over 100 hp in Finland. The 1490 was less turbocharged than the earlier 1410 but was characterized by a more durable transmission.

For some reason, the 1490 had hydraulics that were quite modest in power compared to the smaller models. However, unlike the smaller models, its brakes were oil-immersed disc brakes. The cab noise of the 90 series approached 85 decibels, but otherwise, the cab with its curved glass was more modern than before. The rear-wheel drive models could be equipped with the Hydra Shift transmission. There is quite a variety of information regarding the top speeds from the Finnish importer and international sources, as well as in other DB series.

From the beginning of 1983, the brand of the tractors was Case. At the same time, the 1690 received a turbo and draft sensing on the lift arms.

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