6068HFG95 | Generator Drive Engine

Features

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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.

Electronic unit injector

The EUI fuel system provides higher injection pressures up to 2,275 bar (33,000 psi). It also controls fuel injection timing and provides precise control for start, duration, and end of injection.

4-valve cylinder head

The 4-valve cylinder head provides excellent airflow by utilizing a cross-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 engine models

Engine performance

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

Glow plugs
500-hour oil change
Self adjusting poly-vee fan drive
Variable-speed fan drive increases fuel economy and decreases noise levels
R.H. and L.H. engine-mounted final fuel filters
Low-pressure fuel system with electrical transfer pump and "auto-prime" feature
Directed top-liner cooling

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Specifications

John Deere

6068HFG95

6.8L Generator Drive Engine

CARB

EPA Interim Tier 4

Model

6068HFG95

Number of cylinders

Displacement-- L (cu in)

6.8 (415)

Bore and Stroke-- mm (in)

106 x 127 (4.17 x 5.00)

Compression Ratio

17.2 : 1

Engine Type

In-line, 4-cycle

Aspiration

Turbocharged and air-to-air aftercooled

Length - mm (in)

1161 (45.7)

Width-- mm (in)

767 (30.2)

Height-- mm (in)

1144 (45.0)

Weight, dry - kg (lb)

785 (1731)

Size NA - Diameter - mm (in)

320.5 (12.6)

Size NA - Length - mm (in)

891.9 (35.1)

Size NA - Weight - kg (lb)

30 (66.1)

Hz (rpm)

60 ( 1800 )

Generator Efficiency %

89-93

Power Factor

0.8

Engine power - Prime kW

196

Engine power - Prime hp

263

Engine power - Standby kW

216

Engine power - Standby hp

290

Rated Fan Power - kW

Rated Fan Power - hp

17.4

Calculated generator set output - Prime kWe

164-172

Calculated generator set output - Prime kVA

205-215

Calculated generator set output - Standby kWe

181-189

Calculated generator set output - Standby kVA

226-236

6068HFG956.8L Generator Drive Engine

Features

Series turbocharger

Cooled exhaust gas recirculation (EGR)

Exhaust filters

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

Electronic unit injector

4-valve cylinder head

Air-to-air aftercooled

Compact size

Engine performance

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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6068HFG956.8L 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