John Deere S685 Combine Parts
S685 parts and accessories
The John Deere S685 combine, produced from approximately 2012 to 2017, was a popular choice for farmers needing a high-capacity machine. Sporting a powerful engine around 431 HP and available with header widths ranging from 30 to 40 feet, the S685 excelled in diverse harvesting conditions. Its rotary separator design made it particularly effective for handling high-yielding crops.
The John Deere S685 combine was introduced as part of the S600 series, known for its enhanced productivity and advanced technology. Production years ranged roughly from 2012 to 2017. Powering the S685 is a John Deere PowerTech 9.0L engine, producing approximately 431 horsepower with a displacement of 549 cubic inches (9.0L). This engine delivers the necessary power for demanding harvesting operations. The S685 utilizes a single rotor separator system designed for high-capacity threshing and separating. The grain tank holds around 330 bushels, and the unloading auger boasts a rate of approximately 3.3 bushels per second (198 bu/min). Available header widths ranged from 30 to 40 feet, accommodating various field sizes and crop types. Chopper and spreader options were available to manage residue efficiently. The cab features advanced technology for operator comfort and control, including a touch screen display and automated harvesting settings. The S685 is well-suited for harvesting corn, soybeans, wheat, and other small grains.
Specifications
| Engine | John Deere PowerTech 9.0L 431 HP Diesel |
|---|---|
| Separator Type | Rotary - Single Rotor |
| Grain Tank | 330 bushels |
| Unloading Rate | 198 bu/min |
| Header Widths | 30-40 ft |
| Fuel Capacity | 250 gallons |
| Weight | Approximately 36,000 lbs |
| Years Produced | 2012-2017 (approximate) |
Maintenance Tips
- Concave Adjustment: Regularly check and adjust concave clearance according to the crop being harvested. Proper concave settings minimize grain loss and damage.
- Belt and Chain Tension: Inspect belt and chain tension regularly, especially before and during harvest. Loose belts and chains can lead to slippage, reduced performance, and premature wear.
- Sieve and Chaffer Cleaning: Clean sieves and chaffers daily to prevent clogging and ensure optimal grain cleaning. Remove any accumulated debris and adjust settings as needed.
- Bearing Greasing: Grease all bearings according to the manufacturer's recommendations. Proper lubrication prevents bearing failure and extends the lifespan of critical components.
History & Background
The John Deere S685 was a significant addition to the S600 series combine harvesters. Introduced in the early 2010s, it offered increased capacity and efficiency compared to previous models. It represented John Deere's commitment to innovation in rotary combine technology.
Frequently Asked Questions
What engine is in the John Deere S685?
The John Deere S685 is powered by a John Deere PowerTech 9.0L diesel engine, producing approximately 431 horsepower and having a displacement of 549 cubic inches.
What is the grain tank capacity on a S685?
The grain tank capacity on the John Deere S685 is approximately 330 bushels, with an unloading rate of around 198 bushels per minute (3.3 bu/sec).
What type of separator does the S685 have?
The John Deere S685 utilizes a single rotor separator system, known for its high-capacity threshing and separating capabilities.
What are common parts needed for the S685?
Common parts needed for the John Deere S685 include concaves, rasp bars, belts (drive, header, feederhouse), chains (feederhouse, elevator), bearings (various locations), auger fingers, and sickle sections for the header.

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

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

R21722 - Durometer 90 (5/Pack) .139" Thick O-Ring; .796" ID X 1.074" OD
SKU: R21722
135 in stock

R163559 - Durometer 75 (5/Pack) .070" Thick O-Ring; .739" ID X .879" OD
SKU: R163559
655 in stock

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

P50883 - Durometer 70 (10/Pack) .070" Thick O-Ring; .676" ID X .816" OD
SKU: P50883
100 in stock

HXE52669 - .244" X .800" Rivet
SKU: HXE52669
10699 in stock

H81330 - Seal Isolator
SKU: H81330
223 in stock

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

51M7090 - Durometer 75 O-Ring; .528" ID X .716" OD X .094" Thick
SKU: 51M7090
861 in stock

40M5099 - Internal Snap; 10/Pack Ring
SKU: 40M5099
1990 in stock

38H5035 - Elbow Fitting
SKU: 38H5035
94 in stock

R503312 - Engine Fan Drive Belt
SKU: R503312
142 in stock

HXE99294 - Cleaning Fan Drive Belt
SKU: HXE99294
33 in stock

HXE95935 - Header & Reel Pump Belt
SKU: HXE95935
83 in stock

HXE95511 - Feed Beater Drive Belt
SKU: HXE95511
361 in stock

HXE88564 - RH Front High Capacity Separator Jackshaft Drives Belt
SKU: HXE88564
277 in stock

HXE82335 - Shoe Fan Drive Conveyor Auger Belt
SKU: HXE82335
45 in stock

HXE69281 - After Treatment Blower Drive Belt
SKU: HXE69281
24 in stock

HXE54503 - Feed Accelerator Stone Trap Drive (High Capacity) Belt
SKU: HXE54503
36 in stock

HXE47152 - Feeder House Drive (5 Speed w/ Fore/Aft Tilt) Belt
SKU: HXE47152
24 in stock
