Generac Mobile Products

MMG25IF4 Mobile Diesel Generator

generac mmg25if4 mobile diesel generator

The Generac Magnum MMG25IF4 was specifically designed to deliver the maximum amount of power in an easy to use, easy to maintain cabinet. The Tier 4 engine means that this generator’s long run time can be used to power any event or jobsite that you need.


  • EPA Tier 4 Turbocharged, after-cooled Isuzu diesel engine
  • 26 kVA of prime power with a run time of up to 42.9 hours
  • Sound attenuated (65dB), rust-proof, aluminum enclosure
  • 120% containment
  • Power Zone controller with push buttons and integrated voltage adjustment
  • Lockable control box and lug box
  • 9 warning and shutdown features
  • Emergency stop switch located on the outside of the enclosure
  • 2 year – 2,000 hour warranty


Each Generac mobile generator is built specifically to fit your needs. Several options are available to ensure you get exactly the mobile generator that you need.

  • SUPERSTART generator
  • Battery disconnect
  • Battery charger
  • Buck transformer kit
  • 4 position phase switch
  • Secondary containment
  • Extended run fuel tank
  • Hitch – 2 5/16” ball or 3” ring
  • Tandem axle trailers

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