John Deere S660 Combine Parts

S660 parts and accessories

The John Deere S660 combine, produced from 2012 to 2015, was a popular choice for farmers seeking a mid-sized rotary combine. Powered by a John Deere PowerTech engine delivering around 335 horsepower, the S660 offered ample power for efficient harvesting. It accommodated header widths up to 35 feet, and its rotary separator provided high throughput and grain quality, making it ideal for a variety of crops.

The John Deere S660 was introduced in 2012 as part of the S600 series combines, and production continued through 2015. It quickly gained a reputation for its reliability and performance in diverse harvesting conditions. The combine is equipped with a John Deere PowerTech 9.0L 6-cylinder diesel engine, producing a rated power of 335 horsepower and a maximum power of around 373 horsepower. The S660 utilizes a single rotor separator design, featuring a 30-inch diameter rotor for efficient threshing and separation of grain. Grain tank capacity is approximately 300 bushels, and the unloading auger boasts a fast unloading rate of up to 3.3 bushels per second (198 bu/min). Available header widths ranged up to 35 feet, allowing for efficient harvesting of large fields. Chopper and spreader options included standard fine-cut choppers and powered tailboard spreaders for residue management. The CommandView II cab offered enhanced operator comfort and visibility with features like automatic climate control, adjustable seating, and advanced monitoring systems. The S660 excelled in harvesting a variety of crops, including corn, soybeans, wheat, and other small grains.

Specifications

Engine	John Deere PowerTech 9.0L 335 HP Diesel
Separator Type	Rotary - 30-inch diameter rotor
Grain Tank	300 bushels
Unloading Rate	198 bu/min
Header Widths	Up to 35 ft
Fuel Capacity	225 gallons
Weight	Approximately 35,000 lbs
Years Produced	2012-2015

Maintenance Tips

Concave Adjustment: Regularly check and adjust concave clearance based on the crop being harvested to ensure optimal threshing performance and minimize grain loss.
Belt and Chain Tension: Inspect and maintain proper tension on all belts and chains, particularly the feederhouse and separator drive belts, to prevent slippage and premature wear.
Sieve and Chaffer Cleaning: Regularly clean the sieves and chaffer to remove debris and ensure proper airflow for efficient grain separation. Use compressed air or a brush to remove accumulated material.
Bearing Greasing: Follow the recommended greasing schedule for all bearings, especially those on the header, feederhouse, and separator, to prevent premature failure and extend component life.

History & Background

The John Deere S660 was part of the S600 series introduced in 2012, marking an evolution in John Deere's rotary combine technology. While not a complete redesign, it featured improvements in engine power, grain handling, and operator comfort compared to previous models. It played a significant role in establishing the S600 series as a reliable and efficient option in the mid-sized combine market.

Frequently Asked Questions

What engine is in the John Deere S660?

The John Deere S660 is equipped with a John Deere PowerTech 9.0L 6-cylinder diesel engine, producing 335 rated horsepower.

What is the grain tank capacity on a S660?

The John Deere S660 has a grain tank capacity of approximately 300 bushels, with an unloading rate of 198 bushels per minute (3.3 bushels per second).

What type of separator does the S660 have?

The John Deere S660 utilizes a single rotary separator with a 30-inch diameter rotor for threshing and separating grain.

What are common parts needed for the S660?

Common wear parts for the John Deere S660 include concaves, rasp bars, feederhouse belts, separator belts, chains, bearings, auger flighting, and sickle sections.

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