Robust, Turbocharged John Deere PowerTech™ Engines power the 60 Series Combine Harvesters. All offer air-to-air aftercooling and low 2,200 rpm rated speed for efficient combustion, excellent fuel economy, and long engine life. Wet-type cylinder sleeves provide uniform heat dissipation, reducing the chances of cylinder distortion and major engine failure. Plus, positive, full-pressure lubrication supplies engine components with a lifeblood of cooled and filtered oil for longer life, greater reliability.

With Power Boost, you get up to an extra 24.6 kW (33 hp) when unloading on-the-go. This big surge of extra power helps you maintain ground speed and full threshing and separating capacity.

With Power Buldge, you get reserve torque and power - as much as 7 percent of the rated power. Here's extra power that lets you harvest through weedy patches or other tough spots without missing a beat.

• Vertical oil filter for easy service
• Low 2200 rpm operating speed for long engine life
• Wet-type sleeves for even heat dissipation
• Positive, full-pressure lubrication system supplies parts with cooled and filtered oil
• Gear-driven water pump has no belt to maintain

Large, easy-to-open engine access door with ladder and landing swings out to provide easy access to fuel tank, air scoop, rotary screen, oil coolers, radiator, and engine deck.

Large 757 Litre (200 U.S. gallon) fuel tank on the 9560 STS, 946 Litre (250 U.S. gallon) fuel tank on the 9760 STS, and 1155 Litre (305 U.S. gallon) fuel tank on the 9860 STS reduce fuel stops and increases productivity.

A New Engine Deck Styling incorporates a new Air Scoop, Advanced Cooling Technology, and Reduced Service Time.

• Rotary cooling screen has a positive, full-time drive so that it rotates whenever the engine is running.
• Air scoop draws cleaner cooling air from above the combine where there is less dust and debris.
• Vacuum pickup removes chaff and trash from the screen.
• Rotary screen opens easily for servicing hydrostatic/hydraulic cooler and air conditioning condenser
• Hydrostatic/hydraulic oil cooler extends service life.
• Oil cooler swings out for easy service.
• High-speed fan drive provides the cooling capacity for all harvest conditions.
• A high-capacity wide-spaced tube radiator is in base equipment on the 9660 STS, 9760 STS, and 9860 STS, also in base on the 9560 STS Small-Grain Combine. This high-capacity radiator allows these model STS combines to provide greater all-crop harvesting versatility.