John Deere Industrial: JD4G IHR
JD4G IHR
3.9L Industrial Diesel Engine
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63-129 kW (84-173 hp)
Features
Wastegated turbocharger
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Wastegated turbochargers are designed to develop more airflow at lower engine speeds to improve low-speed torque.
Exhaust filters
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This engine utilizes a catalyzed exhaust filter that contains a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF).
Selective catalytic reduction (SCR)
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This engine features an SCR system that utilizes a urea-based additive, sometimes referred to as diesel exhaust fluid (DEF).
High-pressure common-rail (HPCR) and engine control unit (ECU)
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The HPCR fuel system provides variable common-rail pressure and higher injection pressures. It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.
Compact size
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Smaller space claim
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Simplifies installation
Specifications
Emissions Certifications
EPA Final Tier 4
EU Stage V
General engine data
Model
Number of cylinders
Displacement-- L (cu in)
Engine Type
Aspiration
Height-- mm (in)
Length - mm (in)
Width-- mm (in)
Weight, dry - kg (lb)
JD4G IHR
4
3.9 (238)
In-line, 4-cycle
655 (26)
Turbocharged and air-to-air aftercooled
823 (32)
844 (33)
<474 (<1045)
Performance data range
Rated power
Peak Power
Application Rating
Peak Torque
Power Bulge
Torque rise
63-129 kW (84-173 hp)
129 kW (173 hp)
Continuous, Heavy Duty, Intermittent
700 Nm (516 lb-ft)
Up to 8%
Up to 34%