John Deere 9660 STS – specifications
Series: Other models
Build year not documented · Data origin: Directory data · sources
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John Deere combine harvesters – other models: from the 1450 CWS through the STS to the WTS range from East Moline and Zweibrücken, six-cylinders of 133 to 328 kW
This page gathers the John Deere combine harvesters the register could not assign to a named range – from the older 1450 CWS and 1550 CWS to the STS and WTS combines of the 9500 to 9800 series. John Deere builds its combines in East Moline, Illinois, and, for the European market, in Zweibrücken, Germany. The STS technology introduced in 1999 replaced the classic straw walkers with a single rotor (Single Tine Separator) for threshing and separation; WTS marks the version with wider track undercarriage for softer ground.
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The register lists here 11 versions with 133 to 328.1 kW from six-cylinders of 6,800.6 to 13,501.3 cm³, fitted among others with the PowerTech engines 6068H and 6081H, at rated speeds of 2,200 to 2,400 rpm.
The STS range was among the best-selling big combines of Europe and North America for over two decades, and its rotor technology became the basis of the later S and T series; the WTS versions additionally opened up wet and sloping ground. In Europe John Deere sold the STS combines through a dealer network reaching both large arable farms and contracting businesses.
On used combines, the condition of the threshing and separating rotor, sieves and chopper, header mounting and hydraulics count, on WTS models additionally the track undercarriage, plus operating hours and service history; parts run through the Deere network.
Sources: SpecCodex register, model data: John Deere Mähdrescher (weitere Modelle), John Deere (manufacturer)
Versions of this model in the register
Each row is a separate entry with its own data. The figures on this page belong to the row marked ●.
| Version | Built | kW | EU type approval | Origin |
|---|---|---|---|---|
| 9660 STS | — | 227 | — | Reference work (Wikipedia/Wikibooks) |
| ● 9660 STS | — | 227.1 | — | Directory data |
Technical data
Engine
| Power | 227.1 kWcorrect |
|---|---|
| Rated speed | 2,200 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 8,100.1 cm³correct |
Working data
| Fuel tank capacity | 945.2 lcorrect |
|---|
Frequently asked questions
How much power does the John Deere 9660 STS have?
The John Deere 9660 STS delivers 227 kW.
What engine does the John Deere 9660 STS have?
6 cylinders, 8,100 cm³ displacement.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 5 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Sources: RitchieSpecs equipment specifications (retrieved August 2026) · Data sources and cross-checks
Combine harvester in 3D section
Turn the model, look inside and click an assembly — each one is explained.
