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Honda EM4000S 4,000 Watt Generator | EM4000SX-655740

  • 4000 watts, 120/240V

  • Provides 5,000 watts for 10 seconds to start larger equipment

  • Powers fridge, furnace, lights, TV, and much more

  • Long run time - up to 16 hours

  • Powerful Honda iGX commercial engine

  • Electric start (battery included) with recoil back-up


Availability: In stock


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No Payment Until 2018



  • iAVR (Intelligent Automatic Voltage Regulation) technology ensures a consistent flow of power regardless of load
  • The generator operates well above the maximum rating for up to 10 seconds to start high initial amp draw equipment
  • Powerful iGX commercial enging delivers reliable, optimal performance
  • Engine is computer-controlled to operate with better, simpler, and faster controls
  • 120/240V selector switch enables you to power units with larger wattage requirements
  • Easy folding handles are wide / positive lock and offer convenient transport and storage
  • Runs up to 16 hours at half load with a 6.2 gallon tank / 10.1 hours at full load
  • Electric start (recoil back-up is also included)
  • Wheel kit comes standard for easy maneuvering and transportation
  • 12V DC auto charging for use in automotive type batteries
  • Multiple front panel outlets for easy power connections
  • Low 71 dB(A) sound level
  • Oil Alert protects the generator by shutting the engine off when low oil is detected
  • Reinforced standing legs and full frame protection
  • GFCI protection / 2 duplex outlets
  • USDA-Qualified spark arrestor / muffler
  • Electronic circuit breakers protects the generator from being overloaded
  • Fuel gauge comes standard
  • 3 year residential and commercial warranty

This generator can power the following common applications. Please note: not all applications can be powered simultaneously. 

  • Refrigerator or Freezer (Energy Star)
  • Microwave Oven
  • Furnace Fan, gas or fuel oil
  • Sump Pump
  • TV / DVD
  • Hair Dryer
  • Coffee Maker
  • Computer
  • Garage Door Opener
  • Incandescent Lights

Compliance and Restrictions.

Warning: Cancer and Birth Defect/Reproductive Harm -- www.P65Warnings.ca.gov/product



Engine Honda iGX270
Displacement 270cc
AC Output 120/240 4000W Max. (33.3/16.7A) / 3500W Rated (29.2/14.6A)
iAVR Output 5000W (41.7 / 20.8A) for 10 Seconds 
Receptacles 20A 125V GFCI Duplex (2), 30A 125V Locking Plug, 20A 125/250V Locking Plug
DC Output 12V, 100W (8.3A)
Starting System Electric / Recoil Backup
Fuel Tank Capacity 6.2 Gallons
Run Time per Tank 10.1 Hours @ Rated Load / 16 Hours @ 1/2 Load
Dimensions (L x W x H)        41.1" x 27.8" x 28.3"
Noise Level 71 dB(A) @ Rated Load
Dry Weight 204 lbs.
Residential Warranty 3 Years
Commercial Warranty 3 Years

More Info


Product Information PDFs
Spec List Product Specs
Spec List Owners Manual


Very happy!Review by Bob
This is a well made product. Loads of safety features . I've not run it a full five hours yet,however in the test runs it was great. Bought it as a back up for sump pump,and thank goodness I've not had to use it in that capacity as of yet. (Posted on 6/17/2015)

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