In 1979, Hürlimann celebrated its 50th anniversary, and the event was commemorated by renewing the entire product range and changing the products' color from red to light green. The engines were also an entirely new series. The development of the range had begun before the Swiss factory was transferred to the ownership of Same in 1977, so there were still few technical similarities. However, the front axles of the four-wheel-drive models were manufactured by Same.

The H-480 and H-490 were largely similar to each other. The 4.6-liter engine was equipped with a turbo only in the more powerful model. The engines were water-cooled, and torque increased by 20%. The gearbox was fully synchronized with 12+3 speeds, and in the base version, the road speed was limited to 25 km/h. The H-490 was also available with a fast-shift option. Unlike the smaller models, the brakes were oil-bath type, and the lifting power was significantly greater. The lifting device was equipped with draft sensing on the lift arms. These models came standard with a high De Luxe cab.

In 1980, the world's perhaps only 5-cylinder turbocharged tractor, the Hürlimann H-5110, was introduced. Its 5.7-liter engine had 115 horsepower. Otherwise, the tractor was mostly similar to the H-490.

The H-480 was initially a four-wheel-drive model with a long wheelbase, but in 1984, the wheelbase was shortened, and the road speed was increased.

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