John Deere 975HY4 Combine Parts
975HY4 parts and accessories
The John Deere 975HY4 combine harvester, primarily manufactured in the late 1980s, offered farmers a reliable and efficient solution for grain harvesting. With engine horsepower typically ranging around 200-230 HP and available header widths from 15 to 30 feet, this combine was versatile for various field sizes. Its conventional separator system and robust design made it a popular choice for harvesting wheat, corn, and soybeans.
The John Deere 975HY4 was a key model in the John Deere combine lineup during the late 1980s. Powering this combine was typically a John Deere 6-cylinder diesel engine, delivering approximately 215 horsepower with a displacement around 466 cubic inches. This engine provided ample power for the conventional threshing system, which used a 47-inch wide cylinder. The grain tank capacity was around 165 bushels, and the unloading auger could unload at a rate of approximately 40 bushels per minute. Available header widths ranged from 15 to 30 feet, allowing farmers to tailor the combine to their specific field sizes and crop types. Chopper and spreader options were available for residue management. The cab offered basic operator comfort and controls for adjusting threshing and cleaning settings. The 975HY4 was known for its effectiveness in harvesting wheat, soybeans, and corn, making it a versatile machine for many farming operations.
Specifications
| Engine | John Deere 215 HP 466 cu in Diesel |
|---|---|
| Separator Type | Conventional - 47-inch Cylinder |
| Grain Tank | 165 bushels |
| Unloading Rate | 40 bu/min |
| Header Widths | 15-30 ft |
| Fuel Capacity | N/A gallons |
| Weight | N/A lbs |
| Years Produced | Late 1980s |
Maintenance Tips
- Concave Adjustment: Regularly inspect and adjust the concave clearance based on the crop being harvested to optimize threshing performance and minimize grain damage.
- Belt and Chain Tension: Check belt and chain tension frequently and adjust as needed to prevent slippage and premature wear. Proper tension ensures efficient power transfer throughout the combine.
- Sieve and Chaffer Cleaning: Clean the sieves and chaffer regularly to remove debris and ensure proper separation of grain from chaff. Clogged sieves reduce harvesting efficiency.
- Bearing Greasing: Grease all bearings according to the manufacturer's recommendations to prevent premature wear and failure. This is especially important for bearings exposed to dust and moisture.
History & Background
The John Deere 975HY4 was introduced in the late 1980s as part of John Deere's efforts to provide reliable conventional combine harvesters. It offered a balance of power, capacity, and simplicity that appealed to many farmers. While not featuring major redesigns during its production run, it remained a significant player in the grain harvesting market during its time.
Frequently Asked Questions
What engine is in the John Deere 975HY4?
The John Deere 975HY4 typically features a John Deere 6-cylinder diesel engine, producing around 215 horsepower with a displacement of approximately 466 cubic inches.
What is the grain tank capacity on a 975HY4?
The grain tank capacity of the John Deere 975HY4 is approximately 165 bushels, and it has an unloading rate of around 40 bushels per minute.
What type of separator does the 975HY4 have?
The John Deere 975HY4 utilizes a conventional threshing system with a 47-inch wide cylinder.
What are common parts needed for the 975HY4?
Common wear parts for the John Deere 975HY4 include concaves, rasp bars, belts, chains, bearings, auger fingers, and sickle sections. Regular inspection and replacement of these parts can help maintain optimal performance.

AT21136 - Flanged) Thrust (.030" Bearing
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AT21134 - Flanged) Thrust (.020" Bearing
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AT21132 - Flanged) Thrust (.010" Bearing
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AH75396 - Cylinder End
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