John Deere 985 Combine Parts
985 parts and accessories
The John Deere 985 Combine, produced in the late 1970s and early 1980s, was a popular choice among farmers for its reliability and harvesting efficiency. Powered by a robust diesel engine producing around 175 horsepower, it offered header widths suitable for various field sizes. Its conventional separator system provided efficient threshing, making it well-suited for a range of grains, contributing to its widespread adoption during its production years.
The John Deere 985 combine was manufactured from 1979 to 1982, building upon Deere's legacy of durable and productive harvesting equipment. It featured a John Deere 6-cylinder diesel engine, typically producing around 175 horsepower with a displacement of approximately 466 cubic inches. The 985 employed a conventional threshing system using a 6-bar cylinder for effective grain separation. It had a grain tank capacity of approximately 150 bushels and an unloading auger capable of emptying the tank at a rate of about 40 bushels per minute. Available header widths ranged from 13 to 20 feet, catering to diverse farming operations. The combine came with options for a straw chopper or spreader to manage residue. The cab provided basic operator comfort with essential controls. The 985 excelled in harvesting wheat, soybeans, and corn, solidifying its reputation as a dependable workhorse on many farms.
Specifications
| Engine | John Deere 175 HP 466 cu in Diesel |
|---|---|
| Separator Type | Conventional - 6-bar Cylinder |
| Grain Tank | 150 bushels |
| Unloading Rate | 40 bu/min |
| Header Widths | 13-20 ft |
| Fuel Capacity | 75 gallons |
| Weight | Approximately 15,000 lbs |
| Years Produced | 1979-1982 |
Maintenance Tips
- Concave Adjustment: Regularly inspect and adjust concave clearance to optimize threshing performance and minimize grain damage.
- Belt and Chain Tension: 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 remove debris and maintain optimal grain cleaning performance.
- Bearing Greasing: Grease all bearings according to the manufacturer's recommendations to prevent premature wear and failure. Pay special attention to bearings in high-wear areas like the header and separator.
History & Background
Introduced in 1979, the John Deere 985 aimed to provide a reliable and efficient conventional combine option for farmers. While it didn't undergo major redesigns during its relatively short production run, it represented a continuation of John Deere's commitment to providing dependable harvesting solutions. Its success contributed to the evolution of combine technology in the late 20th century.
Frequently Asked Questions
What engine is in the John Deere 985?
The John Deere 985 is equipped with a John Deere 6-cylinder diesel engine, typically producing around 175 horsepower with a displacement of approximately 466 cubic inches.
What is the grain tank capacity on a 985?
The grain tank capacity of the John Deere 985 is approximately 150 bushels, and the unloading rate is around 40 bushels per minute.
What type of separator does the 985 have?
The John Deere 985 utilizes a conventional threshing system with a 6-bar cylinder for grain separation.
What are common parts needed for the 985?
Common wear parts for the John Deere 985 include concaves, rasp bars, belts, chains, bearings, auger fingers, and sickle sections. Regular inspection and replacement of these parts are crucial for maintaining optimal performance.

AL23836 - Check Valve
SKU: AL23836
144 in stock
RE13255 - GASKET SET
SKU: RE13255
6 in stock

RE11410 - Valve Rotator
SKU: RE11410
288 in stock

R97344 - Pan Gasket
SKU: R97344
56 in stock

R91880 - Head (6 Cyl.) Gasket
SKU: R91880
22 in stock

R90648 - Cylinder Block Plate Gasket
SKU: R90648
12 in stock

R89224 - Intake (.015") Valve
SKU: R89224
10 in stock

R87627 - Valve Stem O-Ring
SKU: R87627
162 in stock

R81989 - Front Crankshaft Sleeve
SKU: R81989
323 in stock

R80724 - Cylinder Liner
SKU: R80724
10 in stock

R80033 - Connecting Rod (2.750" Long) Capscrew
SKU: R80033
131 in stock

R79626 - EXHAUST (.015") VALVE
SKU: R79626
10 in stock

R79625 - Exhaust (.003") Valve
SKU: R79625
228 in stock

R79624 - Exhaust (Std) Valve
SKU: R79624
109 in stock

R79606 - Tee Fitting
SKU: R79606
259 in stock

R79605 - Grommet
SKU: R79605
5681 in stock

R75728 - Rocker Cover Gasket
SKU: R75728
18 in stock

R74194 - Connecting Rod (2.500" long) Capscrew
SKU: R74194
638 in stock

R60746 - Pencil Injector Washer
SKU: R60746
39 in stock

R57451 - Connecting Rod Bushing
SKU: R57451
430 in stock

R56995 - Exhaust (Front) Manifold
SKU: R56995
29 in stock

R56188 - Piston Pin
SKU: R56188
11 in stock

R54500 - Turbo Mounting; Stainless Steel (4 pack) Screw
SKU: R54500
604 in stock

R54114 - Piston Pin Retainer
SKU: R54114
113 in stock
