Generac MMG205 Mobile Generator from Portman Electric
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Mobile Generator - MMG205

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Mobile Generator - MMG205

Generac recognizes environmental responsibility and continues to meet emission regulations with the addition of their Interim Tier 4 Generator. The MMG 205 generator is powered by the John Deere Interim Tier 4 PowerTech engine you can trust.

The MMG 205 is powered by a John Deere PowerTech engine which utilizes a catalyzed exhaust filter that contains a Diesel Oxidation Catalyst (DOC) and a Diesel Particulate Filter(DPF). The DOC reacts with exhaust gases to reduce the carbon monoxide, hydrocarbons and some particulate matter (PM). The downstream DPF traps and holds the remaining PM, which are oxidized within the DPF through a continuous process called passive regeneration.



  • Voltage regulation is plus or minus 1%
  • 342 gallon fuel capacity standard
  • Air filter condition indicator on control panel
  • 2 year - 2,000 hour warranty
  • Low coolant shutdown

Microprocessor Controlled for Easy Operation

  • Engine & generator protection with our Advanced Digital Controller
  • Fuel pressure monitoring
  • Oil pressure monitoring
  • Coolant monitoring
  • Battery voltage monitoring
  • Gen voltage monitoring
  • Overspeed monitoring
  • Over/under current monitoring


  • White aluminum textured powder coat enclosure, sound attenuated baffles and insulation to reduce noise, 68 dBA at prime
  • Fully lockable enclosure with stainless steel exterior hardware
  • Industrial strength steel skid frame and dual axle trailer
  • Central lift structure and convenient ladder on center of generator

Easy to Use

  • Voltage selector switch (single phase & two 3-phase)
  • Electronic governor
  • Lugs and lug box safety switch, if cover is opened circuit breaker is tripped
  • Several convenience outlets with individual breakers
  • Durable external emergency E-stop switch
  • External fuel fill with lockable cap
  • Automatic remote start capable, located on control panel

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