6068HF485 | Industrial Diesel Engine

Features

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4-valve cylinder head

The 4-valve cylinder head provides excellent airflow resulting in greater low-speed torque and better transient response.

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 1600 bar (23,000 psi). It also controls fuel injection timing and provides precise control for the start, duration, and end of the 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

Variable geometry turbocharger (VGT)

Varies exhaust pressure based on load and speed to insure proper EGR flow; greater low-speed torque, quicker transient response, higher peak torque, 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 are the same as Tier 2/Stage II engine models

Engine performance

Multiple rated speeds to further reduce noise and improve fuel economy
New higher peak torque ratings
Better transient response time
Greater levels of low speed torque
Higher levels of power bulge

John Deere electronic engine controls

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

Additional features

Glow plugs
Gear-driven auxiliary drives
500-hour oil change
Self-adjusting poly-vee fan drive
R.H. and L.H. engine-mounted fuel filters

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Specifications

John Deere

6068HF485

6.8L Industrial Diesel Engine

Less Regulated

Tier 3

Stage IIIA equivalent

Model

6068HF485

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

17.0 : 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)

Intermittent - Rated power/Rated speed

205 kW (275 hp) @2000-2400 rpm

Intermittent - Peak power

168-206 kW (225-276 hp) @1800-2200 rpm

Intermittent - Power bulge

0-4 % @1800 rpm

Intermittent - Peak torque

1025 N·m (756 ft-lb) @1400 rpm

Intermittent - Torque rise

26-32%

Heavy Duty - Rated power/Rated speed

144-168 kW (193-225 hp) @2000-2200 rpm

Heavy Duty - Peak power

153-181 kW (205-243 hp) @1600-2000 rpm

Heavy Duty - Power bulge

6-8 % @1700-2000 rpm

Heavy Duty - Peak torque

934 N·m (689 ft-lb) @1400 rpm

Heavy Duty - Torque rise

28-36%

Continuous - Rated power/Rated speed

134-168 kW (180-225 hp) @2000-2400 rpm

Continuous - Peak power

137-168 kW (184-225 hp) @1600-2400 rpm

Continuous - Power bulge

0-3 % @1600 rpm

Continuous - Peak torque

838 N·m (618 ft-lb) @1400 rpm

Continuous - Torque rise

26-31%

6068HF4856.8L Industrial Diesel Engine

Features

4-valve cylinder head

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

Cooled exhaust gas recirculation (EGR)

Variable geometry turbocharger (VGT)

Air-to-air aftercooled

Compact size

Engine performance

John Deere electronic engine controls

Additional features

Specifications

Emissions Certifications

General engine data

Performance data range

Power Connect

Customer Connections

Brochures

Learn More

Engine Parts

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Connect with us

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6068HF4856.8L Industrial Diesel Engine

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Features

Specifications

Emissions Certifications

General engine data

Performance data range

Power Connect

Customer Connections

Brochures

Learn More

Engine Parts

Explore More

Connect with us

Find Sales or Services