Case IH 1680 Combine Parts
1680 parts and accessories
The Case IH 1680 combine, manufactured from 1986 to 1993, quickly gained popularity for its robust performance and efficient harvesting capabilities. Powered by a 210 HP engine, the 1680 offered header widths up to 30 feet, making it suitable for various field sizes. Its advanced rotary separator delivered impressive grain quality and throughput, setting a new standard for combines of its era.
The Case IH 1680 was a flagship rotary combine produced from 1986 to 1993, succeeding the 1480 series. Under the hood, it featured an International Harvester DT-466 210 HP turbocharged diesel engine with a displacement of 466 cubic inches. A key feature was its axial-flow rotary separator, characterized by a 30-inch diameter rotor for efficient threshing and separation. The grain tank boasted a capacity of 215 bushels, and it unloaded grain at a rate of 2.3 bushels per second (approximately 138 bu/min). Available header widths ranged from 13 to 30 feet, accommodating diverse harvesting needs. Chopper and spreader options were available to manage residue effectively. The cab was designed with improved operator comfort and controls for enhanced productivity. The 1680 excelled in harvesting a variety of crops including wheat, corn, soybeans, and other small grains, providing high capacity and minimal grain loss.
Specifications
| Engine | International Harvester DT-466 210 HP 466 cu. in. Diesel |
|---|---|
| Separator Type | Axial-Flow Rotary - 30" diameter rotor |
| Grain Tank | 215 bushels |
| Unloading Rate | 138 bu/min |
| Header Widths | 13-30 ft |
| Fuel Capacity | 100 gallons |
| Weight | Approx. 23,000 lbs |
| Years Produced | 1986-1993 |
Maintenance Tips
- Concave Adjustment: Regularly inspect and adjust concave clearance based on crop type and conditions to optimize threshing and minimize grain damage.
- Belt and Chain Tension: Check and maintain proper tension on all belts and chains to ensure efficient power transmission and prevent premature wear.
- Sieve and Chaffer Cleaning: Clean sieves and chaffers frequently to remove debris and maintain optimal airflow for efficient grain cleaning.
- Bearing Greasing: Grease all bearings regularly according to the manufacturer's recommendations to prevent failure and extend component life. Prior to each season, ensure that all lubrication points are serviced.
History & Background
Introduced in 1986, the Case IH 1680 represented a significant advancement in rotary combine technology. It built upon the success of the earlier 1400 series, offering increased power and capacity. The 1680 helped solidify Case IH's position as a leader in the combine harvester market.
Frequently Asked Questions
What engine is in the Case Ih 1680?
The Case IH 1680 is equipped with an International Harvester DT-466 210 HP turbocharged diesel engine with a displacement of 466 cubic inches.
What is the grain tank capacity on a 1680?
The grain tank capacity on a Case IH 1680 is 215 bushels, and it features an unloading rate of approximately 138 bushels per minute (2.3 bushels per second).
What type of separator does the 1680 have?
The Case IH 1680 utilizes an Axial-Flow rotary separator with a 30-inch diameter rotor. This rotary system provides efficient threshing and separation of grain from crop material.
What are common parts needed for the 1680?
Common wear parts for the Case IH 1680 include concaves, rasp bars, belts, chains, bearings, auger fingers, and sickle sections. Regularly replacing these parts ensures optimal performance and minimizes downtime.

3802403 - Piston Liner; Thick Wall / Long Liner (5.152" Flange) Kit
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3802401 - Piston Liner; Thin Wall (5.223" Flange) Kit
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3802400 - Piston Liner; Thin Wall (5.223" Flange) Kit
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3802370 - Piston; Thin Wall (5.223" Flange) Liner
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3802258 - Piston Ring Set
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3802210 - Main; Std. Bearing Set
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3800348 - Lower Gasket Set
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3353978 - Crankshaft Rear Seal
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3353977 - Crankshaft Front Seal
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1817254 - Upper Gasket Set
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1809964 - Rear Crankshaft Seal
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1808832C92 - 1.25" Rotor Oil Pump Repair Kit
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1808832 - 1.250" Rotor Oil Pump
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1802867 - Oil Suction Gasket
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1802666C92 - Rotor Oil Pump Repair Kit
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1802340C1 - Valve (1.12") Tappet
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