Motorhead Premium Gasoline Generator 12000/21000 Watts


Motorhead Premium generator 12000/21000 watts, Honda engine GX630, 20 HP, Mecc Alte alternator; Runs on gasoline; Includes battery, and wheel kit; 13.5 gallon fuel tank; CARB Approved; Honda® 3-year commercial warranty; 2 Year Smart Generator Limited Warranty.



Motorhead Premium Gasoline Powered Generator

This is our flagship generator and the largest gasoline powered generator we carry. The Motorhead Premium generator 12000/21000 watts is the perfect generator for either Commercial or Residential use. It has a premium quality frame with 4 beefy 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.

  • Model: The Motorhead – SG12003
  • 20 HP Honda GX630 OHV Engine
  • 13.5 Gallon fuel tank provides up to 11.7 hour run time at 50% load
  • 12000 running watts, 21000 starting watts
  • Compatible with 50 amp manual transfer switch
  • Electric start
  • Hydraulic/magnetic circuit breakers, GFCI & Twist-Lock Outlets
  • (2) 5-20R 120V 20A DUPLEX GFCI; (1) L14-30R 120V/240V 30A TWISTLOCK; (1) 14-50R 120V/240V 50A
  • 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 5% THD) necessary to power your sensitive electronics like computers
  • Low oil shutoff
  • Decibel Level (db) 75
  • 420 pounds
  • 31.5 inch (L) x 30.5 inch (W) x 37.5 inch (H)
  • Battery and commercial 4 wheeled mobility kit included
  • Honda® 3-year commercial warranty
  • 2 Year Smart Generator Limited Warranty
  • CARB Compliant For California

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Author Rating
3 based on 41 votes
Brand Name
Smart Generators
Product Name
Motorhead Premium Gasoline Generator
USD 4999.99
Product Availability
Available in Stock

Additional information

Weight 380 lbs
Dimensions 31.5 x 24 x 37.5 in


Engine Brand

Starting Power

Running Power


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