John Deere Industrial: JD9X (6090CI551)

JD9X (6090CI551)
Industrial Diesel Engine
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280-343 kW (375-460 hp) @ 2000 rpm
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Continuous, Intermittent
Features
Series turbocharger
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Air is first drawn into the low-pressure turbocharger and compressed to a higher pressure. The compressed air is then drawn into the high-pressure turbocharger, where the air is further compressed. The high-pressure air is then routed through a charge air cooler and into the engine's intake manifold. By splitting the work between two turbochargers, both can operate at peak efficiency and at slower rotating speeds — lowering stress on turbocharger components and improving reliability. Series turbocharging delivers more boost pressure than single turbocharger configurations, which results in higher power density, improved low-speed torque, and improved high altitude operation.
Exhaust filters
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These engines utilize a catalyzed exhaust filter that contains a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF). The DOC reacts with exhaust gases to reduce carbon monoxide, hydrocarbons, and some particulate matter (PM). The downstream DPF traps and holds the remaining PM. Trapped particles are oxidized within the DPF through a continuous cleaning process called passive regeneration. Passive regeneration occurs during normal operating conditions when heat from the exhaust stream, and catalysts within the exhaust filter, trigger the oxidation of the trapped PM. If passive regeneration cannot be achieved due to low temperature, load, or speed, then PM is removed using active regeneration — an automatic cleaning process controlled by the exhaust temperature management system.
Cooled exhaust gas recirculation (EGR)
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EGR cools and mixes measured amounts of cooled exhaust gas with incoming fresh air to lower peak combustion temperatures, thereby reducing Nox.
Selective catalytic reduction (SCR)
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John Deere engines feature an SCR system that utilizes a urea-based additive, sometimes referred to as diesel exhaust fluid (DEF) to meet Stage V emission standards. A chemical reaction in the SCR catalyst converts urea and NOx emissions into nitrogen and water vapor.
High-pressure common-rail (HPCR)
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The HPCR fuel system provides variable common-rail pressure and high injection pressures. It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.
4-valve cylinder head
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The 4-valve cylinder head provides excellent airflow resulting in excellent low-speed torque and transient response.
Air-to-air aftercooled
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This is the most efficient method of cooling intake air to help reduce engine emissions while maintaining low-speed torque, transient response time, and peak torque. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.
Compact size
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Lower installed cost
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Engine mounting strategy consistent with previous engine models
John Deere electronic engine controls
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Faster engine control unit (ECU) manages both the engine and the exhaust filter
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Premium software integrates with equipment or vehicles to reduce engineering and installation costs
Big-engine durability
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Replaceable (wet) cylinder liners
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Single-piece steel piston with oil-cooling gallery
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Full flow engine-mounted oil cooler
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Up to 500-hour oil change
Additional features
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Engine-mounted fuel filter
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Gear-driven auxiliary drives
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Self-adjusting poly-vee fan drive
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Low-pressure fuel system with electrical transfer pump and "auto-prime" feature
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Optional rear PTO
Specifications
Emissions Certifications
EU Stage V
EPA Final Tier 4
General engine data
Model
Number of cylinders
Displacement-- L
Engine Type
Aspiration
Height-- mm (in)
Length - mm (in)
Width-- mm (in)
Weight, dry - kg (lb)
6090CI551
6
9.0L
6 cylinders, in-line, 4-stroke, water-cooled
763 (30)
Turbocharged and air-to-air aftercooled
1315 (52) *Engine length without fan drive
1194 (47)
1521 (3353)
ATD
DOC/DPF/SCR
Size 5
Performance data range
Rated power
Peak power
Application rating
Peak torque
Power bulge
Torque rise
280-343 kW (375-460 hp) @ 2000 rpm
308-343 kW (413–460 hp) @ 1800–2000 rpm
Continuous, Intermittent
1722-1883 Nm @ 1600 rpm
Up to 10%
Up to 28%
