6068HF285 | Industrial Diesel Engine

2-valve cylinder head

Cross flow head design that provides excellent breathing from a lower cost two-valve cylinder head

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

Fixed geometry turbocharger

Fixed geometry turbochargers are sized for a specific power range and optimized to provide excellent performance across the entire torque curve. They are also designed to maximize fuel economy between the engine's rated speed and peak torque.

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

Multiple injection strategy

The new HPCR fuel system and engine control unit (ECU) allow for multiple fuel injections. The number of fuel injections, based on speed and load, help contribute to lower combustion temperatures, which reduce the formation of NOx and particulates. The multiple injection strategy also provides an added benefit of noise reduction

Engine performance

New power bulge feature
Increased low-speed torque
New higher-peak torque ratings
Faster torque rise
Lower-rated speeds available for reduced noise and improved fuel economy

Compact size

Mounting points are the same as Tier 2/Stage II engine models

John Deere electronic engine controls

PowerTech E engines offer electronically controlled fuel systems with improved cold-start performance, precise engine speed control, torque curve shaping and more. Because these systems have less need for redundant sensors, add on electronic governors, and shutdown devices they result in a lower total installed cost.

Additional features

Self-adjusting poly-vee fan drive
Forged-steel connecting rods
Replaceable wet-type cylinder liners
Either-side service
500-hour oil change
Gear-driven auxiliary drive

Model	6068HF285
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	19.0:1
Engine Type	In-line, 4-Cycle
Aspiration	Turbocharged and air-to-air aftercooled
Length - mm (in)	1123 (44.2)
Width-- mm (in)	657 (25.9)
Height-- mm (in)	1036 (40.8)
Weight, dry - kg (lb)	608 (1340)

Intermittent - Rated power/Rated speed	129-149 kW (173-200 hp) @2200-2400 rpm
Intermittent - Peak power	132-149 kW (177-200 hp) @2000-2400 rpm
Intermittent - Power bulge	0-3 % @2000 rpm
Intermittent - Peak torque	714-785 N·m (527-579 ft-lb) @1500 rpm
Intermittent - Torque rise	28-32%
Heavy Duty - Rated power/Rated speed	116-129 kW (156-173 hp) @2200-2400 rpm
Heavy Duty - Peak power	124-129 kW (166-173 hp) @2000-2400 rpm
Heavy Duty - Power bulge	0-7 % @2000 rpm
Heavy Duty - Peak torque	667 N·m (492 ft-lb) @1500 rpm
Heavy Duty - Torque rise	30-32%
Continuous - Rated power/Rated speed	104-116 kW (139-156 hp) @2200-2400 rpm
Continuous - Peak power	111-116 kW (149-156 hp) @2000-2400 rpm
Continuous - Power bulge	0-7 % @2000 rpm
Continuous - Peak torque	598 N·m (441 ft-lb) @1500 rpm
Continuous - Torque rise	30-32%

6068HF2856.8L Industrial Diesel Engine

Features

2-valve cylinder head

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

Fixed geometry turbocharger

Air-to-air aftercooled

Multiple injection strategy

Engine performance

Compact size

John Deere electronic engine controls

Additional features

Specifications

Emissions Certifications

General engine data

Performance data range

Power Connect

Customer Connections

Brochures

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Emissions Certifications
Less Regulated
Tier 3
Stage IIIA equivalent