DuroStar DS4400 Detail Review – Specs., Warranty, Comparisons & more.

DuroStar DS4400 Review
DuroStar DS4400 Detail Review – Specs., Warranty, Comparisons & more.
DuroStar DS4400 Detail Review – Specs., Warranty, Comparisons & more.
Low price
Included wheels
Easy Assemble
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DuroStar products are manufactured by DuroMax which is one of the leading power equipment companies.

Headquartered in the US, DuroMax also offers Pressure Washers, Water Pumps, Engines, and V-Twin engines.

DuroStar DS4400 is a 4400W, 120/240V portable electric generator. It features a powerful 7 horsepower, forced air cooled engine and provides a continuous power of 3500W.

This video shows the DS4400 in action.

Design, Dimensions & Weight

The DuroStar DS4400 approved for safe use in all US national parks and mandatory job sites.

It can also be used as a backup power source at home or in RVs. It has a heavy duty steel frame with four point fully isolated motor mounts for smooth and quiet operation.

The dimensions of the generator are –

  • Length- 25”
  • Width- 22”
  • Height- 23.25”
  • Weight- 130 lbs

A weight comparison table has been provided below to give you an idea of how many other generators of this category weigh when compared to the DuroStar DS4400.

Table: Weight comparison

DuroStar DS4400 - weight

The table clearly shows that the DuroStar DS4400 is a moderately heavy generator among its competitors. But it also comes with a wheel kit to provide maximum portability.

Power Output / Generation

The DuroStar DS4400 has a cast-iron sleeved, 7 hp, 4 stroke, OHV engine.

It is a 210 cc engine. The generator’s maximum power output is 4400W while it can continuously power a load of up to 3500W. It has 2 120V 20A outputs and 1 120/240V 30A output.

The following table has been made from our reviews of a few generators of the same category.

Table: Power Output

DuroStar DS4400 - power

The table shows that the DS4400 is one of the best in terms of power output among its competitors.

This generator is also cheap when compared to some other generators of this category.

Therefore this generator is a good choice in terms of the power output per dollar ratio.

The generator contains the following features-

  1. Low oil shut-off- shuts the engine down if the oil level is below the minimum to protect the engine from damage.
  2. Built in voltmeter- displays output voltage.

Fuel and Noise

When at full load, the DuroStar DS4400 has an operational volume of 69 decibels.

The table given below compares the DuroStar DS4400 with some of its competition in the same category from

DuroStar as well as other manufacturers for noise output.

Table: Noise Output

DuroStar DS4400 - noise

The DuroStar DS4400 has a low noise output. But, similar noise levels have also been achieved by a few other generators of this category which is also seen in the table above.

The DuroStar DS4400 requires oil without which the generator will automatically shut down.

It has a capacity of 20 fluid oz. DuroStar recommends using SAE 10W-30 motor oil for general use.

This oil also has to be changed regularly for the healthy functioning of the engine. The schedules for an oil change are given in an upcoming section named Care and Maintenance.

NOTE: Please do not dispose of used motor oil in the trash or down a drain. Call your local recycling center or arrange for oil disposal by an auto garage. This oil can be refined, reconditioned and reprocessed to become usable again.

This generator contains a gasoline powered engine. The generator also contains a 4 gallons all steel fuel tank with an EZ-Read gauge. It requires standard unleaded gasoline.

This amount of fuel is enough to power the engine for 14 hours at 50% load. This generator is CARB compliant and is therefore suitable for use in the state of California.

The table below shows the number of hours the DuroStar DS4400 and some of its competitors can operate at 50% load on a full tank.

Table: Hours of Operation

DuroStar DS4400 - operation hrs

The DuroStar DS4400 is can operate for the least amount of time when compared to some of its competitors.

This may be due to the small size of the fuel tank when compared to some of its competitors which will be seen in the next table.

Fuel capacity comparison table of the DuroStar DS4400 is given below.

Table: Fuel tank capacity

DuroStar DS4400 - fuel tank capacity

The DuroStar DS4400 does not have a huge fuel tank due to its frame size limitations.

But it compensates for that through the use of a high fuel efficient engine.

The generator can run for 15 hours at 50% load. Although all these features are present in this generator, it still falls short of a generator in the same category from a different manufacturer.

We have also made a table to show the different types of fuels used by the generators mentioned in the above tables.

Table: Fuel types

DuroStar DS4400 - fuel type

The DuroStar DS4400 runs only on gasoline as opposed to the DuroMax XP4400EH which runs on both gasoline and propane.

But the price difference between these products is quite high which makes the DuroStar DS4400 a good value for money.

Display & Control Panel

An image of the control panel of the DuroStar DS4400 is shown below.

control panel

  • Engine switch- used to keep the engine running or stop it.
  • DC terminals- used to connect 12V DC appliances.
  • 120 V 20A receptacles- to connect electrical devices that run 120V, 60 Hz, single phase AC current.
  • Voltmeter- displays output voltage.
  • Circuit breaker- disables power to the receptacles when an overload or short circuit is detected.
  • 120/240 V 30A receptacles- to connect electrical devices that require higher current at 120V or 240V.
  • Ground terminal- used to connect the generator to an electrical ground.

Startup and Shut down

The DuroStar DS4400S has only a recoil start.

Therefore, starting this generator may not be as easy as starting one with an electric start. The following procedures will explain the startup and shutdown processes.


  • Do not connect any electrical devices to the generator before startup. Connecting a load before startup makes it difficult for the engine to start.
  • Check if the generator is grounded properly.
  • Turn ON the fuel valve.
  • The choke lever must be set in the CLOSED position
  • Turn the engine switch to the ON position.
  • Pull the recoil starter slowly until you feel some resistance. Then pull sharply to start the engine. NOTE: Do not allow the cord to snap back.
  • If engine fails to start, repeat from step 4.

NOTE: After repeated unsuccessful attempts to start the engine, please consult the troubleshooting guide.
After a couple of minutes, move the choke lever half way to the OPEN position. Wait for a few seconds and then move the choke lever to the OPEN position.

Attempt to connect electrical devices only after the engine runs for a few minutes under no load.


  • To stop the generator, use the following steps.
  • Unplug all connected electrical devices.
  • Switch OFF the circuit breaker.
  • Let the engine run for a few more minutes without any load to stabilize the temperature.
  • Turn OFF the engine switch.
  • Turn OFF the fuel valve.
  • An online user manual for this generator can be found here.

Additional Features

The DuroStar DS4400 comes with an all-new high impact interior/exterior packaging which secures the generator using braces to prevent damage.

This ensures that the generator will be delivered in a 100% factory perfect condition.


Since DuroStar generators are manufactured by DuroMax, they come with a 30-day replacement warranty and carry a full 1-year parts warranty for commercial and home uses.

Parts are not charged during the warranty period.

Contact details

Email: [email protected]
Phone: 1-800-629-3325 Monday -Thursday 6am to 7pm, Friday 6am to 5:30pm. PST
Below is a table of comparison of the warranty provided for different generators of the same category as the DuroStar DS4400.

Table: Warranty Period

DuroStar DS4400 - warranty

The Honda EG4000CL has a 3 year warranty as compared to the 1 year warranty on all DuroMax and DuroStar generators in the table above. But the Honda generator costs a lot more than the other generators.

Care and Maintenance

Proper routine maintenance of your generator will help prolong the life of your machine.

Perform maintenance checks and operations according to the given schedule.

Never perform maintenance operations while the generator is running.

  • After each use
  • Check engine oil level
  • Check air cleaner
  • Check gas level

After every month or 20 hours

  • Replace engine oil
  • Clean gas tank

After every 3 months or 50 hours

  • Clean air cleaner

After every 6 months or 100 hours

  • Clean fuel filter cup
  • Check/clean spark plug

After every year or 300 hours

  • Clean gas tank

Customer Reviews

Most consumers have provided good reviews of this product which indicates that the product is good for its price.

What customers like

Easy assembly – Many customers are happy about how easy it is to attach the wheel kit. Even though the provided tools may not be useful for this job, some additional tools which are usually found in most households are enough to complete the task.

Easy start – According to many customers, the engine is extremely easy to start. Some have also mentioned that the lack of electric start does not cause a major issue as the recoil start is very easy to use.

What customers did not like

Does not run at rated load – Some customers have complained that this generator does not power appliances which are close to its rated load.

Gas leak – Some customers have reported that if the gas tank of the generator was filled completely then the generator leaked gas through an overflow line. This issue has been known to cause discomfort to many users.



Low price – One of the most important points when buying a product is the price. This generator is priced low enough to be bought by everyone but also offers features which are expected only to be found in higher priced models.

Included wheels – The included wheel kit comes with two all-terrain never flat wheels which are extremely useful for campers who take it to different places where there might be sharp objects on the ground which can puncture the wheels. It also comes with a handle.

Flexibility – This generator can be put to a variety of uses to power different types of appliances based on the needs of the user. It can power various appliances in a common household and it can also power welding and other power tools which make this generator extremely handy.


No electric start – Lack of electric start is a disability for this product. Electric start is preferred by elderly users who cannot start the engine using the recoil start mechanism even though the generator’s recoil system is extremely easy to use.

Grounding – This generator has to be grounded before connecting a load. For this a separate grounding wire has to be bought and one end of it has to be connected to the grounding nut. The other end of the grounding wire has to be driven into the ground. This process is inconvenient as the grounding wire has to be shifted every time the generator is moved.

Check Pricing & Customer Reviews on Amazon


Question: Is this a 4 cycle generator?

Yes it is a 4 stroke Overhead cam engine.

Question: Will this unit fit in a 20”x18”x18” box if the body frame and wheels are removed?

No that box is too small. It would fit in a 30”x25”x25” box.

Question: What gauge extension cord is safest/best for use with this generator?

An extension cord of 12 gauge will run most appliances at 50 feet.

Question: What kind of motor oil is recommended?

10W30 is commonly used.

Question: Is it made in USA?

No all DuroStar products are made in China.

Question: What kind of gas does it use?

Fresh, unleaded gas with octane rating of 87 or higher.

Question: Can it be used outside in the rain?

No it is not recommended to do so as the outlets and other parts of the generator are not waterproof. Using it in rain can result in injury to the user.

Question: Does it work on LPG?

No, this unit has a gasoline powered engine which cannot run on LPG.


DuroStar 4400-Watt Generator with Wheel Kit
Price not available
DuroStar 4400-Watt Generator with Wheel Kit
Price not available

Recommended accessories

A few recommended accessories for the DuroStar DS4400 are listed below.

DSSGC Storage cover

When the generator is not in use, the nylon storage cover protects it from rain and snow. Water getting into the generator can cause serious damage to the electrical components which may injure the user. Buy it here on Amazon>


The DuroStar DS4400 is a portable generator capable of producing 4400 W of surge power and 3500 W of continuous power.

It is manufactured by DuroMax which is one of the leading power equipment manufacturers in the US.

The generator comes with a lot of safety features. It is a little on the heavier side compared to a few other models in its class but the provided wheel kit eliminates the weight issue.

The engines have a special vibration reduction mount which reduces noise.

It has an operational volume of 69 dB and runs for 14 hours on a half load. It contains 2 receptacles to operate 120 V appliances and 1 receptacle which can operate both 120V and 240V appliances.

It is an economical portable electric generator which users can use as per their desires.

8.7 Total Score
DuroStar DS4400 Portable generator

DuroStar DS4400 is a value for money portable generator with all necessary features.

  • Low price
  • Included wheels
  • Easy Assemble
  • No electric start
  • Grounding
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Last update on 2022-09-24 / Affiliate links / Images from Amazon Product Advertising API

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