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Phillips Equipment Corp, Virginia

John Deere JD4G IHR 3.9L Industrial Diesel Engine

John Deere Products / Engines and Drivetrain / Industrial Diesel Engines / Final Tier 4 (EPA Only) / JD4G IHR 3.9L Industrial Diesel Engine
Model Photo

 

Features

Wastegated turbocharger

  • Wastegated turbochargers are designed to develop more airflow at lower engine speeds to improve low-speed torque.

Exhaust filters

  • This engine utilizes a catalyzed exhaust filter that contains a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF).

Selective catalytic reduction (SCR)

  • 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)

  • 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

  • Smaller space claim
  • Simplifies installation

Engine performance

  • Multiple rated speeds to further reduce noise and improve fuel economy
  • Higher level of peak torque
  • Optional power bulge

Rear gear train

  • The engine features a rear gear train, which produces excellent direct power and options up to two rear aux drives and provide quiet operation.

Additional features

  • Gear-driven auxiliary drives
  • 750 hour minimum
  • Self-adjusting poly-vee fan drive
  • Engine mounted or remote mounted aftertreatment
  • Optional rear PTO
  • Single overhead cam

Emissions Certifications

EPA Final Tier 4  
EU Stage V  

General engine data

Model JD4G IHR
Number of cylinders 4
Displacement-- L (cu in) 3.9 (238)
Engine Type In-line, 4-cycle
Aspiration Turbocharged and air-to-air aftercooled
Length - mm (in) 823 (32)
Width-- mm (in) 655 (26)
Height-- mm (in) 844 (33)
Weight, dry - kg (lb) <474 kg (<1045 lb)

Performance data range

Rated power 63-129 kW (84-173 hp)
Peak power 129 kW (173 hp)
Application Rating Continuous, Heavy Duty, Intermittent
Peak torque 700 Nm (516 lb-ft)
Power bulge Up to 8%
Torque rise Up to 34%

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