DuroStar Ds4000S Generator Review

DuroStar Ds4000S Generator Review

Ian Mutuli
Updated on
Ian Mutuli

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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Durostar DS4000S Portable Generator, Yellow/Black
  • Plenty of Power – With 4,000 peak watts and 3,300 running...
  • Powerful Engine – The DuroStar 208cc OHV engine is a workhorse...
  • Low Oil Shutoff – Protects your investment by automatically...
  • Power Panel – The power panel includes a selection of outlets...
  • Complies with Emissions Standards – All DuroStar generators are...

Duramax is a name of quality, durability, and reliability. The company is popular for manufacturing top notch generators to serve in times of power outages and outdoor trips.

Almost all the generators made by the company are one of a kind but there’s one that packs a strong punch, DuroStar DS4000S. It is a powerful and long-running generator that can cater to your electrical needs with great ease.

DuroStar DS4000S is can be used for home, work or outdoor purposes thanks to its portability, superior wattage, fuel efficiency, and multiple outlets.


Without much ado, let’s dive in and find out more about this generator:


4 Stroke OHV


Manual pull start


EPA, CSA approved


Heavy-duty steel frame and isolated motor mounts




Two 120V 20 Amp, one 120-volt

Engine Displacement

208 CC

Fuel Capacity

4.0 Gallons


94 pounds


1- year Warranty


Power Output: DuroStar DS4000S offers 4000 watts of surging power and 3300 watts of continuous power which is commendable for its size. It might not be a big generator but the power output it provides beats many of its rivals.

It’s enough to power up many small to medium appliances including refrigerators, sump pump, television sets, microwaves, and small ACs.

The rule of thumb is to figure out the total watts you need and to ensure it remains under 3300 watts.

Runtime: This gas-powered generator has a 4-gallon fuel tank. When full, it will continue to provide juice to the connected appliances for up to 8 hours at 50% load.

This takes care of your outdoor trips and longer power outages at homes as well. Hence, it’s a viable unit for both purposes. Plus, 8 hours of uptime is enough to ensure you can have a peaceful sleep. Moreover, you may even opt to reduce the load to enjoy more uptime.

Fuel Gauge: When you’re on a camping expedition and want to use the generator for many hours then it’s necessary to keep a tab on fuel consumption.

Timely refills will prevent sudden tripping. Thankfully, DuroStar DS4000S comes with a fuel reading gauge that allows you to check the remaining fuel in the tank. This makes it easier to know when to fill the time so that you do not have to live a moment without power.

Powerful Engine: The unit incorporates a solid 208cc 4 stroke OHV engine that keeps on pumping consistent wattage power. Another interesting feature of the engine is its ability to keep the entire unit cool with its air-cool technology.

It will minimize heat accumulation and make sure that the generator doesn’t overheat.

Starting Mechanism: DuroStar DS4000S works with the simple cord pulling mechanism. All you need to do is pull the cord 2 to 3 times with force to turn the generator on.

While it is not as good or comfortable as the electric button some generators have, it’s still not the most difficult mechanism since the generator typically starts in a single pull. However, it may change if you do not provide the unit with the type of care it needs.

Low Oil Indicator: It’s essential to keep an eye on the oil present in the tank to ensure you never get out of it. Operating the unit when it’s low on oil can cause the unit to malfunction. It may even be bad for connected appliances as low oil can result in voltage fluctuations as well.

This is a major concern but with DuroStar DS4000S, you won’t have to worry about such problems thanks to its low oil shutoff feature. The unit will shut down automatically when the oil gets low.

It may sound like a hindrance to some but it is important for your safety. You can always refill the oil and turn it back on. Filling the oil is not a problem here. Just follow the guidelines given in the manual.

Noise: This generator is not super quiet and produces noise at 71 decibels. However, thanks to the muffler attached, it is reduced to 69 decibels at 50% loud.

While it is not too loud, it may be too much for some users. Hence, we suggest to use a cord and keep the generator at a good distance to minimize inconvenience.

Super Durable: The generator comes enclosed in a durable steel frame and the engine comes equipped on motor mounts. This makes the generator super sturdy and also helps reduce vibrations.

Safety Components: The generator is quite safe to use thanks to features like low oil indicator, voltmeter, and circuit breaker. You already know what the low oil indicator does, the other two features are also equally important:

Voltmeter: Helps gauge volt to ensure you never go overboard.

Circuit Breaker: Cuts off power to protect appliances in case of fluctuations due to overload.

Power Outlets: The unit contains 3 outlets:

Two 120V, 20-amp 3-prong outlets

Oe 120-volt 30-amp twist-lock outlet.

The benefit of the 30-amp twisting lock outlet is that you can connect the generator directly to an RV and power up a few appliances that fall under 3300 watts.

It’s RV ready, hence suitable for outdoor uses.

Weight: DS4000S only weighs 94 pounds and also has side handles for two people to easily carry it. To make things easier. In addition to this, you can also install wheels for easy handling.

Warranty: The unit comes with a 1-year warranty.


  • CSA and EPA approved.
  • Supports both camping and RV.
  • Sturdy frame.
  • Easier to maintain.


  • A bit heavy at 94 pounds.
  • No spark arrestor.

DuroStar DS4000S FAQS

Q. What is the role of a muffler in a generator?

Ans. It helps suppress the noise by reducing vibration and sucking the noise.

Q. Can it be used for camping and RV?

Ans. It is an RV ready generator, hence it can be used for RVs. Plus, it can handle extreme weather conditions thanks to the presence of a sturdy frame, hence using it outdoors should not be a problem either.

Q. Is the company reliable?

Ans. DuroStar is one of the most respectable names when it comes to generators. It offers excellent customer support and is known for its great products as well. Hence, it’s quite reliable.


If you are in search of a portable generator then DuroStar DS4000S can be an excellent choice. It is quite powerful and easy to use. Plus, the warranty can also offer you peace of mind.

Ian Mutuli

About the author

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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