The CX5080-6090 models were replaced at the end of 2017 by the CX5.80-6.90 series. The engines complied with Stage 4B standards and the power output remained the same. The largest model still featured an 8.7-liter Cursor 9 engine, while the smaller ones had a 6.7-liter engine. The fuel tank was larger than before. The most significant change was the Harvest Suite Deluxe cab, which was 20 cm wider than previously and had a reduced noise level of 73 decibels. The controls were also updated. Standard equipment included the IntelliView IV touchscreen and electric sieve adjustment. A new feature was a cleaning program that fully opened the sieves and set the fan to the highest speed.

In the six-rope models, the grain elevator feeding auger and the drive system of the straw spreader were updated. A new optional feature was OptiSpeed, which adjusted the speed of the ropes on uphill and downhill slopes. Automation that adjusted the fan in those same situations was standard. Laterale models, which keep the machine level, were also available for the 5.90 and 6.90 models. Header height automation, automatic speed control for the unloading auger, and header tilt adjustment were now standard on all models. The grain tank emptying rate was 100 liters per second.

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