Used Hobart JetEx 8 / ITWGSE 6400 28V DC Diesel GPU - Tier 4 Engine

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Power up your aircraft with a used or rental Hobart JetEx 8 (ITWGSE 6400) mobile diesel-driven 28VDC GPU. The low profile design, combined with our rugged 5th wheel steering, provides superior visibility and maneuverability.


  • Reliable ITW GSE AC generator
  • Low noise design
  • Superior voltage regulation

Icon Based User Interface

The clear, icon-based user interface, shown on a high-res color screen is easy to operate and helps ensure correct operation. The display can be customized to suit most language requirements. Technicians can also use the control interface for monitoring operating data, maintenance, and practical troubleshooting.

Easy Access to the Inside of Unit

The engine, alternator, controls, batteries, and cables are all easily accessible but completely protected under a tough, corrosion-free canopy made of resilient medium-density Polyethylene. All maintenance points that need to be checked regularly (fuel, oil, water, etc.) are easy to access. The entire canopy can be removed by hand in less than two minutes – no hoists or cranes needed.


  • Variable-speed engine gives a lower operating noise level especially during low load situation
  • Engine RPM is not tied to output frequency as in case of a diesel unit
  • Longer life expectancy can be achieved as compared to fixed speed engine
  • Able to regulate the speed of the engine to provide just the required capacity to meet the load
  • Less noisy working environment for operators
  • Higher return on investment for the equipment owner


  • Tier 4: Cummins QSF2.8 diesel engine operating between 1600 and 2400 RPM. EU stage 3B compliant
  • Turbocharged 4-stroke, inline 4 cylinders common rail fuel system
  • Full application approval by Cummins
  • 12 VDC battery system
  • Electronic governor system (via the engine’s ECM)
  • Intake manifold pre-heater for cold weather starting

Engine Protection

  • Low oil pressure shutdown
  • High coolant temperature shutdown
  • Low coolant level warning
  • Intake air restriction indication
  • Low fuel warning


  • 28.5 volts DC output
  • Continuous rating: 600 amperes at 28.5 VDC
  • 2000 amperes available for aircraft engine starting
  • Line drop compensation assures proper voltage at aircraft plug
  • Current Limiting adjustable from 300 to 2000 amperes
  • To maximize fuel efficiency, engine speed varies based upon current limit: 300 to 1100 amperes: T4: 1600 RPM 1101 to 1400 amperes: T4: 2000 RPM 1401 to 2000 amperes: T4: 2400 RPM

Dims and Weight

  • Length: 103” (2,615 mm)
  • Width: 66.2” (1,682 mm)
  • Height: 63.9” (1,622 mm)
  • Tier 4: 2800 lbs. (1,270 kgs)


  • Per MIL-STD-704F, SAE ARP5015, and ISO 6858 (BS2G219)
  • Over / under voltage
  • Overload
General Information
Part #6400-T4
ManufacturerITW GSE/Hobart
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