6068HFG85

6.8L Generator Drive Engine

• PowerTech™ Plus
• Standby: 212-235 kW (284-315 hp) @ 1800 rpm
• Prime: Prime: 193-214 kW (259-287 hp) @ 1800 rpm

Features

Jet fuel capable

The John Deere jet fuel capable engines run on military, arctic, and aviation fuel, including Jet A, Jet A-1, JP-5, and JP-8. If you need to switch back to diesel fuel, just fill up the tank and go.

4-valve cylinder head

High pressure common rail fuel system

HPCR: Higher injection pressures, up to 1600 bar (23,000 PSI) variable injection pressure, variable timing control, multiple injections and controls the duration of injection

Cooled exhaust gas recirculation (EGR)

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

Variable geometry turbocharger-VGT

Varies exhaust pressure based on load and speed to insure proper EGR flow, quicker transient response for exceptional block-loading, and best-in-class fuel economy

Air-to-air aftercooled

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

Horsepower/displacement ratio is best-in-class
Lower installed cost
Mounting points for Tier 3/Stage III A engine models same as Tier 2/Stage II engine models

John Deere electronic engine controls

Monitors critical engine functions providing warning and/or shutdown to prevent costly engine repairs; eliminates need for add-on governing components; all lowering total installed costs. Snapshot diagnostic data that can be retrieved using commonly available diagnostic service tools
New common wiring interface connector for vehicles or available OEM instrumentation packages; new solid conduit and "T" connectors to reduce wiring stress, greater durability and improved appearance
Factory installed engine mounted ECU or remote mounted ECU, wiring harness and associated components
Industry standard SAE J1939 interface which communicates with other vehicle systems, eliminating redundant sensors and reducing vehicle installed cost

Additional features

EPA Tier 3	-

Model	6068HFG85
Number of cylinders	6
Displacement-- L (cu in)	6.8 (415)
Bore and Stroke-- mm (in)	106 x 127 (4.17 x 5.00)
Compression Ratio	17.0:1
Engine Type	In-line, 4-Cycle
Aspiration	Turbocharged and air-to-air aftercooled
Length - mm (in)	1161 (45.7)
Width-- mm (in)	616 (24.3)
Height-- mm (in)	1128 (44.4)
Weight, dry - kg (lb)	678 (1495)

Hz (rpm)	60 ( 1800 )
Generator Efficiency %	88-92
Power Factor	0.8
Engine power - Prime kW	193-214
Engine power - Prime hp	259-287
Engine power - Standby kW	212-235
Engine power - Standby hp	284-315
Rated Fan Power - kW	6.5-14.1
Rated Fan Power - hp	8.7-18.9
Calculated generator set output - Prime kWe	164-184
Calculated generator set output - Prime kVA	181-230
Calculated generator set output - Standby kWe	194-214
Calculated generator set output - Standby kVA	226-254