6090HFG95 | Generator Drive Engine

Series turbocharger

Fresh air is first drawn into the low-pressure turbocharger (fixed geometry) and compressed to a higher pressure. The compressed air is then drawn into the high-pressure turbocharger (VGT), 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.

Cooled exhaust gas recirculation (EGR)

EGR cools and mixes measured amounts of cooled exhaust gas with incoming fresh air to lower peak combustion temperatures, thereby reducing NOx.

Exhaust filters

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. Engines below 130 kW (174 hp) use an in-cylinder dosing system for active regeneration, while larger engines use an external dosing system.

High-pressure common-rail (HPCR) and engine control unit (ECU)

The HPCR fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures up to 1,975 bar (29,000 psi). It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.

4-valve cylinder head

The 4-valve cylinder head provides excellent airflow by utilizing a U-flow design.

Air-to-air aftercooled

This is the most efficient method of cooling intake air to help reduce engine emissions. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.

Compact size

Lower installed cost
Simplifies installation
Mounting points are the same as previous model

John Deere electronic engine controls

Faster engine control unit (ECU) manages both the engine and the exhaust filter; Full authority electronic controls; Four times the memory, twice the RAM, and double the processing speed; The input/output capability has increased 40%

Additional features

500-hour oil change
Self-adjusting poly-vee fan drive
Variable-speed fan drive increases fuel economy and decreases noise levels
Single-piece low-friction steel piston
Low-pressure fuel system with electrical transfer pump and "auto-prime" feature
Directed top-liner cooling

Model	6090HFG95
Number of cylinders	6
Displacement-- L (cu in)	9.0 (549)
Bore and Stroke-- mm (in)	118.4 x 136 (4.66 x 5.35)
Compression Ratio	16.0 : 1
Engine Type	In-line, 4-cycle
Aspiration	Turbocharged and air-to-air aftercooled
Length - mm (in)	1266.6 (49.9)
Width-- mm (in)	841.7 (33.1)
Height-- mm (in)	1344.0 (52.9)
Weight, dry - kg (lb)	1096.8 (2418)

Size 7 - Diameter - mm (in)	379 (14.9)
Size 7 - Length - mm (in)	875.8 (34.5)
Size 7 - Weight - kg (lb)	79.55 (175.4)

Hz (rpm)	60 ( 1800 )
Generator Efficiency %	90-94
Power Factor	0.8
Engine power - Prime kW	246-295
Engine power - Prime hp	330-396
Engine power - Standby kW	272-328
Engine power - Standby hp	365-440
Rated Fan Power - kW	16.4-19.6
Rated Fan Power - hp	22.0-26.3
Calculated generator set output - Prime kWe	210-262
Calculated generator set output - Prime kVA	262-327
Calculated generator set output - Standby kWe	231-288
Calculated generator set output - Standby kVA	289-360

6090HFG959.0L Generator Drive Engine

Features

Series turbocharger

Cooled exhaust gas recirculation (EGR)

Exhaust filters

High-pressure common-rail (HPCR) and engine control unit (ECU)

4-valve cylinder head

Air-to-air aftercooled

Compact size

John Deere electronic engine controls

Additional features

Specifications

Emissions Certifications

General engine data

DOC/DPF Dimensions

Performance data range

Power Connect

Customer Connections

Brochures

Learn More

Engine Parts

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CARB
EPA Interim Tier 4

6090HFG959.0L Generator Drive Engine

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Features

Specifications

Emissions Certifications

General engine data

DOC/DPF Dimensions

Performance data range

Power Connect

Customer Connections

Brochures

Learn More

Engine Parts

Explore More

Connect with us

Find Sales or Services