John Deere CTS, 9780 CTS, 9880 STS

In the CTS, similar to the Claas Lexion 480, there are 2 longitudinal separation drums instead of rasp bars, whereas the STS features one longitudinal cylinder as the threshing mechanism. The cylinder is divided longitudinally into three zones. The first handles the feeding of the straw mass, the middle one replaces the threshing drum, and the last one corresponds to the rasp bars.

In the 1998 model CTS, the nominal power was 260 hp, the maximum power at 2100 rpm was 278 hp, and the additional power feature (291 hp) was available during unloading. In the following year's model, the grain tank was enlarged and engine power increased: the corresponding figures were now 305/331/365 hp. After the 2001 updates, the model was renamed 9780 CTS, and at the same time, the 9880 STS was introduced to Europe.

In autumn 2004, the i-models were introduced, which optionally featured HarvestSmart and AutoTrac (see WTSi). The drivetrain was more robust. The CTS engine had more power and electronic engine control.

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