DuroStar DS4000S 4000 Watt Portable Generator Review

The DuroStar DS4000S is an ideal household backup power generator if you want to keep your family safe during calamity.

It provides you with medium power at 4,000 watt starting and 3,300 watt effective. It can accommodate your important household appliances for you to enjoy life even the power is out.

The DuroStar DS4000S runs for longer period of time at 12.3 hours with half load capacity while 8-hours at full load. If you’re using it at job sites it provides you enough power to run our tools the whole day. It is also best for your RV needs as it features an RV ready outlet.

It is solidly built with its heavy duty steel frame that will lasts for many years even at rugged condition. It packs with features which is hard to find in any other competing brands such as the voltmeter, circuit breaker, oil warning, power outlets and many more.

It has a proven track record from customer’s review with 4.3/5 stars at Amazon that satisfies their purchase.

Best For

With this kind of power, it is ideal for home backup, camping and medium job site projects usage. Though, the DuroStar DS4000S 4000 Watt Portable Generator comes in a very affordable price the power it delivers is incredibly reliable in any given situation.

>>Click Here to check the price and discover what people are saying about the DuroStar DS4000S Portable Generator Review.

Powerful And Reliable Engine

In times of calamity failure is definitely not an option, right?

The DuroStar DS4000S is powered by 7 Horse Power OHV 4-cycle engine with air cooled feature for great operations.

The body is made of heavy duty steel frame with four point isolated motor mount to protect the engine and adds to its smooth running condition.

Its 3,300 watts effective output is ideal for camping, RVing, covering sports events, job sites and home backup power.

Excellent Panel Design

I guess no one wants to operate a complicated panel during emergency, right?

DuroStar DS4000S 4000 Watt Portable Generator Review

Thankfully, the DuroStar DS4000S comes in an excellent panel design for dead simple operation.

This is probably one of the simplest panel designs I reviewed. Starting at the left side is the engine switch and below it is the Low Oil alert LED indicator.

On the right side of it you can notice the Voltmeter and main circuit breaker. Finally, the two standard 120v 20Amp AC voltage outlets to accommodate your regular home appliances while the 120v twist-lock outlet for your RVs and high powered tools.

Fuel Efficient

Fuel efficiency is one key factor in choosing the best portable generator. Thankfully, the DuroStar DS4000S Portable Generator is designed with excellent fuel efficiency.

How long it will lasts?

A single full tank of 4-gallon of fuel will last for more than 8-hours of run time. However, some customers confirms that it can last for up to 12 to 14 hours  powering up their mini split AC unit, refrigerator, TV and lights.

Low Noise

The DuroStar DS4000S Portable Generator is designed for low noise operation. However, you can never expect a 4,000 watts conventional generator as quiet as a 2,000 watts Honda inverters.

DuroStar claims a 69dB noise level on this rugged workhorse generator. This makes it possible with its super quiet exhaust system that greatly reduces the engine noise.

Safety Features

The Voltmeter enables you to visualize the ideal voltage output. An over voltage and a lower voltage as well can damage your appliances. This feature is hardly found in any conventional generator.

A solid steel fuel tank prevents leakage while the inclusion ez-read fuel gauge allows you to see the fuel level. It’s good to know if you need to add gas on the generator if it requires a longer hours of usage during power outbreak. This added feature is also hard to find.

To protect your appliances from damaging due to overloading the circuit breaker feature will automatically shutdown the system. The circuit breaker will activate when an overload occurs. You can simply reset the main breaker switch to resume the generator’s operation.

To protect the engine from damaging due to overheating, the low oil shut-off feature will take care of it. When the low oil alert LED indicator will illuminate, it means that there’s insufficient oil present in the generator’s engine. Adding oil is needed to keep the engine in good shape.

Portable Design

This Generator comes in a portable design so that you can easily take it anywhere that requires an immediate power. It features an easy to carry handle so that it can simply carry by two adult persons.

Don’t want to carry it?

If you refuse to carry a 90-pounds generator the DuroStar DS4000S Portable Generator features an optional wheel kit that includes the flip handle.

Having this optional feature enables you to roll it anywhere while the handle greatly adds to its maneuverability. However, consumer should be aware the fact that the optional wheel kit and carry handle is not included in the package.

Customer’s Review


I have been using this generator for three years and use it for about 20 times. We have the most unreliable electric service whenever the wind blows the power goes out and return for 2 days. This push me to purchase this generator. My neighbors are suffering from the dark while I’m comfortably watching TV in a cool bedroom with cold drinks. It’s been four years now and it still runs amazingly, my best purchase ever 5-star all the way!

I have this generator since 2012 until this spring of 2018 and it’s been through with many hurricanes while still running great. It doesn’t owe us a dime a great purchase!

Fuel Efficiency

It always startup in a single pull and I run with my fridge, air condition unit, lights and TV. It always runs for about more or less 15-hours in a single full tank of gas.

It says that a four gallon of gas lasts for eight hours on full load but mine was running for 16-hours.


Arrived at an amazing packaging with no damage when shipped.

Noise Level

This generator is very quiet. It is quieter than my lawn mower and I cannot hear it from inside of my home. I was very impressed with its noise level.

I was comparing it to my neighbor’s generators and the DuroStar DS4000S is definitely the quietest.

Power Capacity

We use it during the hurricane Sandy with five days without power and runs my sump pump, fridge, microwave, HVAC system, charging cell phones, hair iron, radio, TV and many more.


It doesn’t include the oil so you need to buy one.

Assembling the wheel kit is a bit hard due to the location of the bolts while the wrench is in different sizes. However, I highly recommend to buy a wheel kit for this.

This generator doesn’t have a power meter so you don’t know how much power is it drawing. >>Click Here to read more customers’ review.


The DuroStar DS4000S Portable Generator proves to be an outstanding performer.

Most customers are amazed how quiet the generator runs and operates more than 14-hours in a single full tank.

It is pack with helpful features such as the voltmeter, easy to read fuel gauge and simple panel design.

The optional wheel kit is extremely helpful. Though, it is sold separately you can get it a very affordable price.

If you’re thinking to buy an affordable and reliable generator, the DuroStar DS4000S Portable Generator definitely brings real value. >>Click Here to get it at its Lowest Price!