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DuroStar DS4000S

Image of  the DuroStar DS4000SThe DuroStar DS4000S produces 3300 watts of continuous power which is enough to power most of your essential appliances.  It is well built and also enclosed in a heavy duty steel frame.  This rugged workhorse is very good on fuel economy.  The manufacturer claims you get 8-hours of runtime at ½ load. A lot of reviewers claim you get over 10-hours at ½ load.

It is also fitted with a circuit breaker to protect the generator from overload.  To reduce the engine noise a super quiet muffler is fitted with the generator. This reduces the noise of generator to 69dA.  It can be used at campsites,  jobsites and home as your primary back-up.


  • Inexpensive
  • Quiet
  • Fuel gage installed
  • Fuel efficient

  • It ships with no oil
  • Oil changing is daunting



The DuroStar DS4000S is fitted with a gasoline 7.0-horsepower engine. This produces 3300 running watts and 4,000 peak watts. The power panel features the main controls, including start switch, volt meter, and circuit breaker. It offers two 120-volt, 20-amp, 3-prong outlets (NEMA 5-20R) to supply power to all of your home appliances, plus one 120-volt, 30-amp outlet (NEMA L5-30) for high-powered tools.  This generator is ideal for camping, RVs, sporting events, job sites, home back-up and more.


This generator is enclosed in a heavy duty steel frame with four point fully isolated motor mounts for smooth and quiet operation. With a low-oil shutdown system the engine is prevented from any damage caused by low oil.


It is comes with a 4-gallon fuel tank that includes an easily readable gauge.  At ½ load this generator has an 8-hour runtime. The starting method of this generator is manual.  Most reviewers say you are not going to go past two pulls for the generator to start up.  It is also fuel efficient. At 69dbA, the generator is not super quiet but it is ok to give your neighbors their peace of mind. For easier transportation and movement we recommend that you buy the optional wheel kit. It will really make your life easier.



It is a budget portable generator which can power most of your essential appliances in the home.  Of course you are not going to get the extra benefits that come with the expensive ones, like very clean power. This is the best bet if you are on budget. Click here to buy this generator and read more reviews on

DuroStar DS4000S
Typeair - cooled OHV 4-Cycle
Starting System :Recoil Start
HP/CC :7.0 hp
RPM :3600 RPM
Low Oil Alert/ShutdownYes
Idle ControlNo
Hour MeterNo
CARB CompliantNo
Cast Iron Sleeve/EnclosureOpen Steel Frame
Rated / Maximum AC Output3300/4000 Watts
Rated / Maximum AC Current20/30 Amps @ 120 V Single Phase
Voltage120 Single-Phase
DC OutputNo
Auto Voltage Regulator (AVR)Unknown
Alternator :Unknown
Voltage MeterYes
Neutral TypeUnknown
Tank Size4 Gallons
Run Time (50% Load)8 hours
Tank MaterialMetal
BatteryNot Applicable
Portability KitOptional
Noise Level69 dbA
Lifting EyeNo
Weight93 lbs (42.18kg)
Dimensions27" L x 20" W x 22" H (68.58 x 50.8 x 55.88)
Consumer1 Year
CommercialNot Available
AccessoriesDescriptionWhere to Buy
Image of DuroStar DS4000S-WK Wheel Kit DuroStar DS4000S-WK Wheel Kit makes life easier for you by making your generator extra portable.Click Here
Image of Coleman Cable 01915 3-Feet Generator Power Cord AdapterColeman Cable 01915 3-Feet Generator Power Cord Adapter, 10/3 Splitter Y Adapter, L5-30P to (2) Lighted 5-20R. Power distribution generator extension cord.Click Here
Image of No-Spill 1450 5-Gallon Poly Gas CanNo-Spill 1450 5-Gallon Poly Gas Can (CARB Compliant). Your best friend when filling your generator. Enjoy precise pouring of gas into your generator.Click Here
Image of STA-BIL 22214 Fuel StabilizerSTA-BIL 22214 Fuel Stabilizer. Want to prolong your engine's life? STA-BIL is the right choice. It keeps fuel fresh for quick, easy starts after storage, while prolonging your engine's life.Click Here
Image of Hopkins FloTool 10701 Spill Saver Multi-Purpose FunnelHopkins FloTool 10701 Spill Saver Multi-Purpose Funnel. Pour all your liquids into containers with small openings with great ease.Click Here
Image of Reliance Controls 31406CRK Pro/Tran 6-Circuit 30 Amp Generator Transfer Switch KitReliance Controls 31406CRK Pro/Tran 6-Circuit 30 Amp Generator Transfer Switch Kit With Transfer Switch, 10-Foot Power Cord, And Power Inlet Box For Up To 7,500-Watt Generators.Click Here

These are some of the general tips you need consider when you buy this genset;

  •  Get a fuel stabilizer
  •  Periodically start the machine if it is going to be unused for a very long time
  •  Limitations of the genset; what it can and cannot run.
  • Always test your newly bought generator out before there is an emergency or the actual time of using. In that you will be  sure the machine works. If anything than that you can replace it before the warranty expires.
  • Let generator run for a few minutes before plugging in any load
  • Plug in all load starting with most intensive first
  • Flip breaker to ON
  • Buy the wheel kit



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