The 9R/9RT Series Tractors are built with the John Deere PowerTech PSX 9.0 L Engine or the new John Deere PowerTech PSX 13.5 L Engine. These air-to-air aftercooled engines deliver constant power over a wide range of engine RPMs and can provide a 38-percent torque rise and a 10-percent power bulge that will pull you up, over, and through tough conditions. Two turbochargers are used in a series for outstanding engine responsiveness. By splitting the work between two turbochargers, both can operate at peak efficiency and at slower rotating speeds for improved durability.
With up to 560 engine hp, up to 20,000-pound hitch-lift capacity, and up to 78 gpm hydraulic flow, the 9R/9RT Series makes it easy for you to go all out and get every job done faster than ever. And the PowerShift transmission’s Efficiency Manager will help you get it done with less diesel.
The 9R/9RT Series meets the U.S. Environmental Protection Agency’s Interim Tier 4 Emissions Regulations by utilizing cooled exhaust gas recirculation for controlling oxides of nitrogen and a smart exhaust filter for reducing particulate matter. The filter automatically cleans itself during normal machine operation for hassle-free and worry-free emissions compliance.
The 9R/9RT Series packs plenty of comfort to get you through the longest workdays. The CommandView II Cab’s generous space lets you kick back and relax while the exclusive ActiveSeat on wheel models and the AirCushion Suspension System on track tractors give you a super-smooth ride.
For more information go to:
http://www.deere.com/wps/dcom/en_US/products/equipment/tractors/four_wheel_drive_tractors/9r_9rt_series/9r_9rt_series.page?
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For more specifications download: 
John Deere 9RT
Machinery Manager 
