12000/20000 Watt Dual Fuel Portable Generator with Honda Engine


12000/20000 Watt Dual Fuel Portable Generator with Honda Engine


This is our flagship generator and the largest Dual Fuel generator we carry with a Honda engine. The Motorhead® Dual Fuel generator is the perfect generator for either Commercial or Residential use. It has a premium quality frame with 4 beefy never flat wheels for easy mobility. On the job site this unit can power all of your power tools without skipping a beat. It is also a great choice for a homeowner looking to power up a central air conditioner up to 5 tons, sum pump, well pump, heat, microwave, lights, entertainment center, computers, refrigerators, etc.

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SKU: SG11004 Categories: ,


  • The Motorhead® – SG11004
  • Built with a Honda GX630 OHV Dual Fuel Engine
  • Designed to operate on both propane (LPG) and natural gas
  • 19.2 HP (LPG), 17 HP (Natural Gas)
  • Natural Gas requirement: 200,000 BTU per hour, 9″ W.C. of pressure
  • Propane (LPG) requirement: 200,000 BTU per hour, 11″ W.C. of pressure
  • Hydraulic/magnetic circuit breakers, GFCI & Twist-Lock Outlets
  • Premium Mecc Alte Alternator with 100% copper windings, Made in Italy
  • The AVR (Automatic Voltage Regulator) system provided by Mecc Alte produces precise voltage (less than 4% THD) necessary to power your sensitive electronics like computers


  • Electric Start
  • Low oil shutoff protection
  • Compatible with 50 amp manual transfer switch
  • Battery and commercial 4 wheeled mobility kit included
  • Digital display gives immediate accurate reading of Voltage, Hz, Hour meter and timer.
  • Run time on LPG (Propane) up to 10 hrs at 50-percent load per 40 pound fuel tank


  • Eliminates bad gasoline issues and lets you skip fuel-system winterization
  • Honda® 3-year commercial warranty
  • Smart Generators 3 year limited warranty

Additional information


Portable Generator


12 kW


Weight 500 lbs
Dimensions 31.5 × 24 × 37.5 in
Product Weight 380 lbs
SKU SG11004
Engine Honda GX630 OHV Dual Fuel Engine
Starting System Electric
Receptacles (2) 5-20R 120V 20A DUPLEX GFCI; (1) L14-30R 120V/240V 30A TWISTLOCK; (1) 14-50R 120V/240V 50A
Running Watts (LPG) 12000
Starting Watts (LPG) 20000
Running Watts (Natural Gas) 10800
Starting Watts (Natural Gas) 16000
Noise Level (dBA) 78


SG11004 Motorhead Dual Fuel Operating Manual


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