JetEx 8 28.5 VDC Tier 4


The Hobart JetEx 8 is a mobile diesel-driven 28.5 VDC GPU powered by a Cummins QSF2.8 Tier 4 diesel engine with a Hobart generator. Hobart Generators are the benchmark of quality and reliability giving users the best power quality without sacrificing durability. The Cummins tier 4 Engine meets all the latest U.S emissions regulations. A sliding canopy to provide complete access to the engine, generator and control compartments.The Hobart JetEx8 is capable of 600 Amp continuous and 2000 Amp on Start.  Simple easy to use control panel with illuminated digital gauges and back lit push buttons allows for easy operation under all conditions.


Contact Information

Product Attributes

Operating light(shows unit is in operation):

One of the checkboxes is required

Block Heater:

One of the checkboxes is required

Low Fuel Beacon:

One of the checkboxes is required

Battery Blanket:

One of the checkboxes is required

Notes and/or comments

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  • Features & Options
  • Specifications
  • Data Sheet


  • EPA Tier 4/CARB Tier 4
  • EU Stage III B
  • MIL-STD-704F, SAE ARP5015 and
  • ISO 6858
  • BS2G219
  • ISO 9001-Certified manufacturer
  • CE certified Fifth wheel steering
  • No load shut down
  • 53 gallon fuel tank (200 L) with at least 8 hrs. run time at max full load
  • Fork lift pockets
  • Tow bar with parking brake
  • Sliding canopy for ease of access


  • Unit operating beacon
  • Low fuel beacon
  • Clearance lights
  • Block heater
  • Battery blanket
  • DIN40 towing eye
  • Tow bar Interlock
  • Tie down rings


  • Cummins QSF2.8 diesel engine operating between 1600 and 2400 RPM
  • Tier 4 / EU Stage 3B compliant
  • Turbocharged 4-stroke, inline 4 cylinder 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 74HP
  • Operating temperature: -25°F to +125°F (-32°C to +52°C)
  • Relative humidity: 10-95% non-condensing
  • No altitude derating required up to 5,500 ft. (1,676 meters) when running in normal operating range
  • 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: 1600 RPM
  • 1101 to 1400 amperes: 2000 RPM
  • 1401 to 2000 amperes: 2400 RPM
  • Dimensions: 103” L X 66.2” W X 63.9” H
  • Weight 2800 lbs. (1814 kgs)

Data Sheet