DuroStar DS4000S (Discontinued)
The DuroStar DS4000S is a compact open frame generator with a rated wattage of 3,300 W and a starting wattage of 4,000 W. (Read full specs)
This product has been discontinued. We've kept this page live for reference.
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Description
The DuroStar DS4000S 4,000 Watt Generator is designed for light duty emergency backup applications. This Generator has everything a Great Generator needs, but at a price that everybody wants.
Zoom on the DuroStar DS4000S
To sum up, the DuroStar DS4000S is a compact portable generator tailored for:
- RV travellers wishing to enhance their freedom and nomad lifestyle
- People occasionally participating in outdoor fairs, festivals or events
- Amateur DIY lovers
- Homeowners in need of an emergency backup power for their essentials
In the forthcoming sections, you'll delve into its power characteristics, the various outlets it offers, its overall portability, and the additional features it boasts.
Power & Run Time
With a 208 cc (7 hp) DuroStar OHV 4-stroke engine, the DuroStar DS4000S operates on gasoline, providing 120V, with a running wattage of 3,300W and a starting wattage of 4,000W.
The generator features a classic hand-operated recoil starting mechanism. It is rated for a noise of 69 dBA (less noisy than an office).
The fuel capacity of 4 gallons allows the DS4000S to operate for up to 26 hours with a full tank (fuel consumption around 0.15 GPH).
The powering of sensitive electronic devices with the DS4000S is not recommended due to its relatively high THD (<12%).
Outlets
The control panel includes the following 3 AC outlets:
Even if this DuroStar generator isn't quite RV Ready, it still allows for an easy RV connection via an L5-30P to TT-30R adaptor, thanks to its L5-30R receptacle.
Portability
Measuring L23 x W18 x H17.5 in, the classic open frame construction of the DuroStar DS4000S provides stability while enabling convenient maintenance access to components and adequate air cooling. This type of design is ideal for tough environments and heavy outdoor use.
Weighing 92 lbs, the DS4000S is easily handled, ensuring it can go wherever your power needs are. Additionally, the open frame design of the generator ensures easy grabbing and shifting for relocation.
Additionally, you can acquire the official wheel kit (opens in a new tab) to simplify the transportation of the DS4000S.
Features
The DS4000S and its control panel include a convenient voltmeter, which provides an easy way to monitor power output anytime. This feature comes handy when monitoring its status and activity.
In addition to this info, a light indicator on the device will notify you if the oil level is too low.
The inclusion of a built-in fuel gauge in the generator streamlines gas level checks for quick and convenient assessments.
Security-wise, this product benefits from an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.
Alongside the standard documentation and an owner's manual (opens in a new tab) for quick setup, the DuroStar DS4000S is bundled with additional accessories: tool kit and funnel. An official storage cover is also available, as a separate purchase.
Product Videos
The DuroStar DS4000S versus other generators
The following charts are provided to give you an idea of how some of the key specs of the DuroStar DS4000S compare to generators of similar power (between 2500 and 3500 W).
- With a dry weight of 92 pounds, the DuroStar DS4000S finds itself in the expected weight range for generators able to produce between 2500 and 3500 rated watts. If you are mindful of weight, the Pulsar PGD40iSCO is among the top contenders in this power range, with a dry weight of 46 pounds.
- This generator, with its lowest noise level at 69 dBA, is noisier than most generators of comparable running wattage. If you value reduced noise levels, the Honda EU3000iS could be worth considering. It's one of the quietest generators in its power range, rated at 50 dBA.
- At 25% load, the DS4000S achieves one of the longest run times compared to devices of similar power, sustaining operations for up to 26 hours.
- Run time is a key metric, but it's dependent on the generator's fuel capacity. Therefore, discussing fuel efficiency is necessary to get the full picture. With a fuel consumption rate around 0.15 GPH (gallon per hour) at 25% load, this generator is one of the more fuel-efficient models within the aforementioned wattage range. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Energizer eZV3500P. With a fuel consumption of as little as 0.13 GPH, it is one of the most efficient generators currently on the market.
The bottom line
- High run time
- Fuel efficient
- Decent weight (92 lbs)
- No electric start
- On the noisy side (69 dBA)
Features and Specifications
| Inverter | No |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 208 cc DuroStar OHV 4-stroke |
| Starting system | Recoil |
| Warranty | 3 years |
| Voltage | AC: 120V 60 Hz |
|---|---|
| Running watts | 3,300 W |
| Starting watts | 4,000 W |
| Running amps | 27.5 amps |
| Peak amps | 33.3 amps |
| Run time @50% load | 12 h |
| Run time @25% load | 26 h |
| GFCI outlets | No |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | Yes |
| AC outlets |
|
| DC outlets | No |
| Data center | Voltmeter |
| Indicators | Low oil |
| Fuel tank | 4 gal |
| Fuel gauge | Yes |
| Weight | 92 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 23 x 18 x 17.5 in |
| Noise (lower limit) | 69 dBA |
| THD | < 12% |
| Compliance | CARB, EPA |
| Security | Low oil and overload protection |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Funnel and tool kit |
| UPC | 811640011840 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About DuroStar
The DuroStar brand belongs to DuroMax, a company founded in 2003 and based in Ontario, California. DuroStar generators usually have a DuroMax twin, and only differ in their color scheme and in the factory in which they were produced. While DuroStar generators and engines are manufactured in China, the design and servicing centers reside in the US.
Warranty Information
The DuroStar DS4000S is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of DuroStar generators, please consult DuroStar's (DuroMax) warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-844-DUROMAX (844-387-6629).
Questions & Answers
What can it power?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Refrigerator (energy star) | 192 | 1192 |
| Hair dryer | 1800 | 1900 | |
| Coffee maker | 600 | 600 | |
| Pair of small speakers | 45 | 45 | |
| Total | 2637 W | 3637 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| RV AC (11,000 BTU) | 1010 | 1600 | |
| Radio | 100 | 100 | |
| Pair of small speakers | 45 | 45 | |
| Total | 2635 W | 3225 W | |
| For work | Grinder | 1400 | 2500 |
| Disc sander | 1200 | 1200 | |
| Total | 2600 W | 3700 W |



