6068HFC95
6.8L Industrial Diesel Engine
  • 6.8L PowerTech™ PSX
  • 168 - 187 kW (225 - 250 hp)
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Features
Get details on 225 to 250 hp, 168 to 187 kW John Deere 6068HFC95 industrial diesel engines for OEM equipment, including features, specs, and integrated support.
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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.
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.
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.
4-valve cylinder head
  • The 4-valve cylinder head provides excellent airflow resulting in greater low-speed torque and better transient response time 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 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.
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.
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%
Compact size
  • Lower installed cost; simplifies installation; mounting points are the same as previous engine models
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
Specifications
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Emissions Certifications
CARB
  
EPA Interim Tier 4
  
General Engine Data
Model
6068HFC95
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
17.2 : 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)
Doc/Dpf Dimensions
Size 5 - Diameter - mm (in)
320.5 (12.6)
Size 5 - Length - mm (in)
891.9 (35.1)
Size 5 - Weight - kg (lb)
NA
Performance Data Range
Intermittent - Rated power/Rated speed
168-187 kW (225-250 hp) @2200 rpm
Intermittent - Peak power
185-190 kW (248-255 hp) @2000 rpm
Intermittent - Power bulge
2-10 % @2000 rpm
Intermittent - Peak torque
1000-1025 N·m (738-756 ft-lb) @1600 rpm
Intermittent - Torque rise
26-37%
We want to make owning and operating your equipment simple and affordable. 
We have a range of finance options to suit any customer.  Contact your local Emmetts branch, or visit these sites for more information and a free quote.
John Deere FinancialEmmetts Finance
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