Honda Power Equipment EM4000S


Honda Power Equipment



Key Features
  • 4000 watts, 120/240V
  • Powers fridge, furnace, lights, TV, and much more
  • Provides 5,000 watts for 10 sec. to start larger equipment
  • Long run time - up to 16 hrs
  • Electric start (battery included) with recoil back-up
  • Powerful Honda iGX commercial engine
  • Powers your fridge, furnace, lights, TV, and much more: The EM4000S can power a wide variety of appliances in your home. Check the applications tab for more examples.
  • Consistent power with iAVR (Intelligent Automatic Voltage Regulation) technology: Honda's exclusive iAVR technology ensures a consistent flow of power regardless of the load. This translates into stable power for sensitive equipment and a more reliable power source for you.
  • Provides 5,000 watts for 10 sec to start larger equipment: Honda exclusive iAVR technology lets the generator operate well above its maximum rating for up to 10 seconds to start high initial amp draw equipment.
  • Powerful Honda iGX commercial engine: Honda's innovative iGX series engines deliver exactly what you've always wanted: reliable, optimal performance. These intelligent computer-controlled engines operate automatically with much better, simpler, and faster controls.
  • 120/240V Selector switch - More usable power, more flexibility: Choose between using both 120 and 240 Volts, or 120 Volts only. This allows for the total generator output to be available through any of the 120 volt outlets, limited only by the capacity of the individual outlet. This enables you to power units with larger wattage requirements.
  • Easy folding handles: Wide, positive lock folding handles offer convenient transport and storage and a more compact unit.
  • 3 year residential and commercial warranty: You can rest easy, knowing your generator is covered from top to bottom for 3 full years.
  • Runs up to 16 hours on 6.2 gallon tank: Runs approximately 16 hours at half load and 10.1 hours at full load. This makes the EM4000S great for overnight power.
  • Electric start: Recoil back-up is also included.
  • Wheel kit standard: The EM4000S is easy to maneuver and transport.
  • 12V DC Auto Charging: Use when charging 12-volt automotive type batteries. (Requires an optional charging cord.)
  • Multiple front panel outlets for easy power connections
  • Full Frame Protection
  • Low 61-63 dB(A) sound level
  • Protected by Honda Oil Alert®: Protects the generator by shutting the engine off when low oil is detected.
  • Reinforced standing legs
  • GFCI protection: The EM4000 offers 2 duplex outlets with GFCI protection.
  • Electronic ignition
  • USDA-qualified spark arrestor/muffler
  • Optional remote start available: Allows for convenient starting of your generator from a remote location.
  • Electronic circuit breakers: Protects the generator from being overloaded.
  • Fuel gauge standard
  • Engine: Honda iGX270
  • Displacement: 270 cc
  • AC Output: 120/240V 4000W max. (33.3/16.7A) / 3500W rated (29.2/14.6A))
  • iAVR Output: 5000W (41.7/20.8A) for 10 sec.
  • 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
  • Fuel Tank Capacity: 6.2 gal.
  • Run Time per Tankful: 10.1 hrs.@ rated load, 16.0 hrs. @ 1/2 load
  • Dimensions (L x W x H): 41.1 in. x 27.8 in. x 28.3 in.
  • Noise Level: 63 dB(A) @ rated load; 61 db(A) @ 50% load
  • Dry Weight: 204 lb.
  • Residential Warranty: 3 Years
  • Commercial Warranty: 3 Years
  • Remote Control Kit
  • DC Charging Cord
  • Transfer Switch
  • Hanger Kit
  • Storage Cover
WARNING: This product can expose you to chemicals including soots, tars, and mineral oils, which are known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to



Engine Type
270 cc


41.1 in.
27.8 in.
28.3 in.
204 lb.


AC Output
120/240V 4000W max. (33.3/16.7A) / 3500W rated (29.2/14.6A))
DC Output
12V, 100W (8.3A)
20A 125V GFCI Duplex (2), 30A 125V Locking Plug, 20A 125/250V Locking Plug
Fuel Tank Capacity
6.2 gal.
Noise Level
63 dB(A) @ rated load; 61 db(A) @ 50% load
Run Time
10.1 hrs.@ rated load, 16.0 hrs. @ 1/2 load

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