John Deere 9880-STS Combine Parts
9880 STS parts and accessories
The John Deere 9880 STS combine, produced from 2003-2006, offered farmers a powerful harvesting solution with its approximately 375 HP engine. Known for its innovative Single Tine Separator (STS) rotary system, it delivered efficient grain separation across various crops. Available header widths ranged significantly, making it a versatile choice for diverse field conditions and farming operations.
The John Deere 9880 STS was a significant step in combine technology, manufactured between 2003 and 2006. Powering this machine was a John Deere 9.0L PowerTech engine, delivering around 375 horsepower with a displacement of 549 cubic inches. The standout feature was its Single Tine Separator (STS) rotary system, which provided enhanced threshing and separation capabilities compared to conventional cylinder combines. The grain tank held approximately 300 bushels, and unloading was quick, thanks to an unloading auger rate of around 3.0 bushels per second (180 bu/min). It could accommodate a range of header widths, from 20 to 36 feet, catering to different row spacings and field sizes. Optional features included a fine-cut chopper and adjustable spreaders for residue management. The cab was designed for operator comfort, featuring air conditioning, adjustable seating, and intuitive controls. The 9880 STS excelled in harvesting corn, soybeans, wheat, and other small grains, providing high throughput and reduced grain loss.
Specifications
| Engine | John Deere 9.0L PowerTech 375 HP Diesel |
|---|---|
| Separator Type | Rotary - Single Tine Separator (STS) |
| Grain Tank | 300 bushels |
| Unloading Rate | 180 bu/min |
| Header Widths | 20-36 ft |
| Fuel Capacity | 200 gallons |
| Weight | 32,000 lbs |
| Years Produced | 2003-2006 |
Maintenance Tips
- Concave Adjustment: Regularly inspect and adjust concave clearance based on the crop being harvested to optimize threshing and minimize grain damage.
- Belt and Chain Tension: Check and maintain proper tension on all belts and chains to prevent slippage and ensure efficient power transmission.
- Sieve and Chaffer Cleaning: Regularly clean sieves and chaffers to prevent plugging and maintain optimal cleaning performance, especially when transitioning between crops.
- Bearing Greasing: Follow the recommended greasing schedule for all bearings to prevent premature wear and failure. Pay close attention to the bearings in the header, separator, and unloading auger.
History & Background
Introduced in 2003, the John Deere 9880 STS was part of the evolution of John Deere's rotary combine technology, building upon the successes of earlier STS models. While it didn't receive any major redesigns during its production run, it solidified the STS system as a highly efficient and reliable grain harvesting solution. Its impact is still felt today as a benchmark for rotary combine performance.
Frequently Asked Questions
What engine is in the John Deere 9880 STS?
The John Deere 9880 STS is equipped with a John Deere 9.0L PowerTech diesel engine, producing approximately 375 horsepower.
What is the grain tank capacity on a 9880 STS?
The grain tank capacity of the John Deere 9880 STS is approximately 300 bushels, and the unloading rate is around 180 bushels per minute (3 bushels per second).
What type of separator does the 9880 STS have?
The John Deere 9880 STS utilizes a Single Tine Separator (STS) rotary system for threshing and separating grain from the crop material. This system is known for its efficient and gentle handling of grain.
What are common parts needed for the 9880 STS?
Common wear parts for the John Deere 9880 STS include concaves, rasp bars, feeder house chains, belts (drive, separator, header), bearings, auger flighting and fingers, and sickle sections for the header.

RE61812 - Air Intake Temperature Sensor
SKU: RE61812
148 in stock

RE506352 - Belt Tensioner
SKU: RE506352
55 in stock

RE249801 - Belt; Fan Tensioner
SKU: RE249801
61 in stock

T70309 - Clutch Drive Plate
SKU: T70309
10 in stock

H163561 - Final Drive Mounting Spacer
SKU: H163561
59 in stock

AH208684 - Ball Joint
SKU: AH208684
49 in stock

AH147263 - Hydrostatic Drive Control Cable
SKU: AH147263
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AH128391 - Pinion Seal Assy
SKU: AH128391
16 in stock

AL68253 - Tie Rod End
SKU: AL68253
182 in stock

T75984 - Durometer 90 (2/Pack) .070" Thick O-Ring; .801" ID X .941" OD
SKU: T75984
430 in stock

T42302 - Durometer 70 (1/Pack) .103" Thick O-Ring; 3.987" ID X 4.193" OD
SKU: T42302
385 in stock

R72328 - Durometer 75 (5/Pack) .103" Thick O-Ring; .737" ID X .943" OD
SKU: R72328
695 in stock

R63185 - Durometer 70 (1/Pack) .139" Thick O-Ring; 1.171" ID X 1.449" OD
SKU: R63185
271 in stock

R56757 - Durometer 75 (2/Pack) .139" Thick O-Ring; 3.609" ID X 3.887" OD
SKU: R56757
256 in stock

R56465 - Durometer 75 (1/Pack) .103" Thick O-Ring; .674" ID X .880" OD
SKU: R56465
184 in stock

R56464 - Durometer 75 (5/Pack) .103" Thick O-Ring; .549" ID X .755" OD
SKU: R56464
660 in stock

R56461 - Durometer 75 (5/Pack) .139" Thick O-Ring; 1.109" ID X 1.387" OD
SKU: R56461
455 in stock

R27564 - Durometer 70 (10/Pack) .070" Thick O-Ring; .739" ID X .879" OD
SKU: R27564
250 in stock

R27149 - Durometer 75 (5/Pack) .139" Thick O-Ring; .921" ID X 1.199" OD
SKU: R27149
235 in stock

R26871 - Snap Ring
SKU: R26871
801 in stock

R1225R - Durometer 75 (5/ Pack) O-Ring; 1.171" ID X 1.449" OD X .139" Thick
SKU: R1225R
565 in stock

H81330 - Seal Isolator
SKU: H81330
223 in stock

H133106 - Snap (1/Pack) Ring
SKU: H133106
684 in stock

B3690R - Durometer 75 (5/Pack) O-Ring; 1.859" ID X 2.137" OD X .139" Thick
SKU: B3690R
425 in stock
