Production years
2000-2003
John Deere combine ยท 2000-2003
John Deere 9750 STS Combine Harvester
The John Deere 9750 STS is a large Class 7 rotary combine from the early STS era, widely regarded as a high-capacity machine for its time. Its 325 hp Deere engine, 300-bushel tank, and single-tine rotor made it a popular choice for maize, soybeans, and small grains.
Engine
John Deere 6081H 8.1 L, 325 hp rated
Grain tank capacity
10,550 litres
Header compatibility
John Deere 600/900 Series grain, maize, and pickup headers; 6.1-11 m grain platforms commonly used
John Deere 9750 STS specifications
| Production years | 2000-2003 |
|---|---|
| Threshing system | STS single-rotor, axial-flow rotary separation |
| Engine | John Deere 6081H 8.1 L, 325 hp rated |
| Grain tank capacity | 10,550 litres |
| Header compatibility | John Deere 600/900 Series grain, maize, and pickup headers; 6.1-11 m grain platforms commonly used |
| Weight | Approx. 13,455 kg without header, maize configuration |
| Rotor | Single Tine Separation rotor with 15 threshing elements |
| Unloading rate | Approx. 4,650 litres/min |
What the 9750 STS is used for
The 9750 STS was designed for large grain and maize operations that needed more throughput than conventional-walker combines could provide. It was commonly paired with wide grain platforms or maize heads in soybeans, wheat, maize, and similar crops.
Today, it remains a capable used rotary combine for moderate-acreage farms, custom work, or as a second machine. Its value depends heavily on separator hours, maintenance history, header package, and local John Deere support.
Why the John Deere 9750 STS stands out
The 9750 STS helped establish Deere's STS rotary line as a serious high-capacity alternative to conventional combines. It is valued for its simple single-rotor crop flow, large tank, familiar Deere controls, and strong parts availability. Exact specifications can vary by configuration, so confirm serial-number details with Deere and TractorData.com/manufacturer records.
Buying a used John Deere 9750 STS
Inspect the rotor, concaves, grates, feederhouse chain and sprockets, feederhouse reverser, unloading-auger flighting, chopper, belts, and hydrostatic drive carefully. Review engine and separator hours separately, look for evidence of clean-grain-elevator or shoe wear, and run all header, unloading, and monitor functions before purchase.
John Deere 9750 STS frequently asked questions
How much horsepower does a John Deere 9750 STS have?
It is commonly cited at 325 rated engine hp, with higher power available through power bulge and boost functions.
What is the grain tank size on a 9750 STS?
The standard grain tank capacity is 300 bushels.
Is the 9750 STS still a good used combine?
Yes, if it has sound rotor, feederhouse, drive, and cleaning-system components and local parts support.
Specifications are commonly cited figures for general reference; exact figures vary by year, header and configuration, so confirm against the manufacturer's records and the machine's serial number. Weights, capacities and dimensions are converted to metric and rounded. Used combine values vary by condition and hours. Page updated 19 Sep 2026.