Search  for anything...

DuroStar DS4000S Portable Generator, Yellow/Black

  • Based on 3,058 reviews
Condition: New
Checking for product changes
$399.00 Why this price?
Easter Deal · 17% off was $479.99

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Apr 4
Order within 12 hours and 11 minutes
Available payment plans shown during checkout

Style: 4,000-Watt Gas


Features

  • Plenty of Power With 4,000 peak watts and 3,300 running watts, this unit can handle heavy loads, from lights and a refrigerator to a home air conditioner and high amperage power tools
  • Powerful Engine The DuroStar 208cc OHV engine is a workhorse that provides plenty of power to handle multiple jobs, from powering high voltage appliances to heavy duty power tools
  • Low Oil Shutoff Protects your investment by automatically shutting the generator off when it senses that the oil is low
  • Power Panel The power panel includes a selection of outlets for maximum compatibility in your applications including: 2 120V household outlets and 1 120V 30A twist lock outlet. The panel also includes a voltmeter for measuring voltage output
  • Complies with Emissions Standards All DuroStar generators are both approved by the EPA (Environmental Protection Agency) and CARB (California Air Resources Board) and follow strict guidelines to ensure our generators are as environmentally friendly as possible

Description

The DuroStar DS4000S is a powerful generator at an affordable price point. With 4,000 peak watts and 3,300 running watts, this unit can handle heavy loads, from your household appliances to high amperage power tools on the jobsite. This rugged workhorse is ideal for a wide variety of uses, from getting you through a blackout to powering your RV on a camping trip.

Brand: DuroStar


Wattage: 3300 watts


Fuel Type: Gasoline


Power Source: Gas Powered


Recommended Uses For Product: Residential


Item Weight: 94 Pounds


Voltage: 120 Volts


Output Wattage: 4000 Watts


Special Feature: Portable


Included Components: Generator


Brand: ‎DuroStar


Wattage: ‎3300 watts


Fuel Type: ‎Gasoline


Power Source: ‎Gas Powered


Recommended Uses For Product: ‎Residential


Item Weight: ‎94 Pounds


Voltage: ‎120 Volts


Output Wattage: ‎4000 Watts


Special Feature: ‎Portable


Included Components: ‎Generator


Color: ‎Yellow/Black


Product Dimensions: ‎23"L x 17"W x 18"H


Material: ‎Metal


Model Name: ‎DS4000S


Engine Type: ‎4 Stroke


Tank Volume: ‎3.96 Gallons


Engine Displacement: ‎208 Cubic Centimeters


Runtime: ‎8 hours


Frequency: ‎60 Hz


Starting Wattage: ‎4000 Watts


Running Wattage: ‎3300 Watts


Manufacturer: ‎DuroMax


Part Number: ‎DS4000S


Item Weight: ‎94 pounds


Country of Origin: ‎China


Item model number: ‎DS4000S


Batteries: ‎1 Lithium Ion batteries required.


Is Discontinued By Manufacturer: ‎No


Style: ‎4,000-Watt Gas


Pattern: ‎Generator


Item Package Quantity: ‎1


Special Features: ‎Portable


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎3-Year Warranty


Date First Available: October 20, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Klarna Pay in 4
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great unit for a great price!
Style: 4,000-Watt Gas
I ordered this generator after the last season of hurricanes and storms in Northeast USA. My house is in a flood prone area and I wasn't going to go through another entire hurricane season with sleepless nights. My old generator stopped working last year so I knew I was in the market for a new one. I paid $299 for this generator off of Amazon and another $39 for the wheel kit (DuroStar DS4000S-WK Wheel Kit for DS4000S). As of writing this review, the generator is down to $289.00. Either way, I would have paid $350 for this unit! The packaging was great. There was no damage to the unit during shipping. My biggest complaint about packaging is that some oil seemed to seep out of the unit and onto the box so I had to be careful when opening it up. I ended up having to wipe the units frame down with a rag to dry it off. The unit does not ship with oil, but someone must have put oil in it at one point to test it out because there was a lot of oil in the box. One other note, be sure to remove the shipping mounting bracket! The easiest way to do this is to use the provided tool and loosen the nuts and bolts while the unit is sitting level. We have not had to use this unit yet (thankfully) but I did get it running. I recommend purchasing an all purpose or transmission fluid funnel from your local automotive shop - this will help you to fill the oil tank without getting oil all over the place. The location of the oil fill is not very convenient, but with the proper funnel it isn't much of a headache. I imagine in the middle of a storm though that this could prove to be a huge design flaw. Once oil was added, I threw in some Unleaded 87 octane gasoline and it started up on the second pull. I let it run for about 5 minutes. The unit is QUIET! Very quiet. I would even go as far as to say that my lawn mower is louder than this generator. I was able to put my head right next to the generator without issue, and I could not hear it running from inside of my house. Very impressed with the volume! Attaching the wheel kit was a pain to say the least. The location of the bolts is a problem, and the bolts and nuts are different wrench sizes which is another problem. It makes installation a bit of a pain. I would say though that having this generator on wheels is very helpful. I would recommend the wheel kit to anyone interested in this generator. Thanks - I hope this was helpful. --------------------------------------------------------------- UPDATE AFTER FIRST USE (HURRICANE SANDY - 10/29/2012) --------------------------------------------------------------- Hurricane Sandy hit us hard and we were estimated to be without power for 5 days. I prepared the generator the day before it hit, filled it with gas, checked oil level, and then started it up. It started right up! I then followed the instructions: - 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 It has been 4 days without power now and this generator has powered the following (at different times): - (2) 1/2HP sump pumps - (1) refridgerator/freezer and (1) microwave - (1) refridgerator/freezer and (1) HVAC system for heat - (1) refridgerator/freezer and (1) Verizon FiOS system - Miscellaneous items [cell phone chargers, hair irons, radio, etc.) The unit does not have a wattage meter to show you the current load but you should do your due diligence to know how much power various items draw. I can judge how must stress I put on the unit by keeping a note on how long 4 gallons of gas gets me. The unit says 4 gallons = 8 hours on full load. I am getting 4 gallons = 16 hours so I am only putting the unit through half load. I changed the oil 20 hours into running per the manual. From what I understand this is very important! Don't skip this step. I had a hard time removing the oil drain plug (10mm hex wrench) so I ended up removing the oil cap and tilting the unit to the side to drain the oil which removed almost all of it. Again, it started right up afterwards with no issues. Lastly, compared to all of my neighbor's generators, this one is the quietest by far! Bottom line - if you treat this generator right and maintain it, it should return the favor and save your butt in times of need. We have a 1 yr old daughter and without this generator it would have been a difficult few days. --------------------------------------------------------------- UPDATE AFTER STORAGE (Fall 2012 - Fall 2014) --------------------------------------------------------------- I recently pulled the generator out of storage to turn it over and let it run for a bit. When I stored it in 2012 I changed the oil and emptied the gas tank, so all I had to do was put a bit of gasoline in and start it up. I'm happy to report that it started up on the first pull without issue. I let it run for about 5-10 minutes, then closed it down for storage again (drained gas tank). I am extremely satisfied with this purchase!! --------------------------------------------------------------- UPDATE AFTER STORAGE (Fall 2014 - Spring 2018) --------------------------------------------------------------- It's been a little over 5 years since I had to use this generator with Hurricane Sandy - 10/29/2012. I just pulled it out of storage again to see if it would run. Ended up having some trouble. Replaced oil, fresh gasoline, still wouldn't run. Ended up having to take the carb off and clean it out as it was all gummed up inside. After cleaning it and putting it back together, started up 1st or 2nd pull of the cord. Runs like a champ still and generates power without any issue. My only warning is that you really need to make sure you keep FRESH gasoline on hand. It seems this generator does not like gas that has been sitting around for 6+ months. I've started adding fuel stabilizer to the tank to see if that will help and then cut off the fuel line and let the engine die that way to help clean out the carb. This generator doesn't owe us a dime. Great purchase. PLEASE MARK THIS REVIEW AS HELPFUL IF YOU FOUND IT HELPFUL! ... show more
Reviewed in the United States on June 5, 2012 by Trevor Mankus

  • So far so good.
Style: 4,000-Watt Gas
I got the generator recently for $250 which was a fantastic deal. I got the wheel kit as well which went on quite easily even with the atrocious directions. The generator looks very well made and the fit and finish is very good. I put in some low cost 10W-30 for the first couple runs. I ran the generator yesterday for half an hour just to be sure it worked, it started on the very first pull and a few seconds later it was running nice and smooth, I let it warm up for a few minutes and tested function with some power tools, no issues except for the smell of melting plastic. I shut it down to take a look and I found that they had wedged a funnel under the generator right on the exhaust, I removed it with no ill effects except for the ruined funnel. There was no mention on the documentation that a funnel was included. I put it away to work some other chores around the house. I ran it again today for two hours under load, I connected it to my fridge, 50" plasma, sound system, cable box, wii, media PC, and NES. I opened up the doors on the fridge for a few minutes to ensure the compressor would kick on and run for a while. The generator barely flinched when the compressor started (slight dimming of the light inside), no noticeable effects on the TV. The generator had plenty of extra power to spare which will come in handy down the road. After the two hour run I changed the oil and put in some castrol GTX 10W-30. The used oil was pretty dark and clearly had a fair amount of shimmering metal dust and shavings in it. Not big enough to pick up and grab but felt slightly gritty when rubbing the oil between my fingers. That was to be expected though. After the next run, which will likely be when the power is out, I'll change the oil again regardless of run time, then after that I'll follow the recommended maintenance intervals. Overall it seems to be a great quality generator for a great price. The only con I see so far is that the oil drain plug drains right onto the frame, which was easily fixed by a small piece of bent cardboard. Also the manual says the engine takes "about one quart of oil" I added 7/8 of a quart on the first fill and ended up with 1/4 quart on the floor of my garage, after changing the oil I found the actual capacity is closer to 5/8 of a quart. My recommendations: - Change the oil at least once after the first few hours of use to remove the metal shavings present in the engine. Preferably change it a second time after another few hours of use. Proper conditioning and maintenance of any small engine will keep it running for many years. - Unless you plan on using the generator very regularly, you should use a fuel stabilizer added to fresh gasoline for the first and every fill thereafter. Replace the unused fuel with fresh treated gas every year. - When shutting down the engine, close the fuel valve to burn off residual fuel rather than using the engine switch. - Finally, at the very least run the engine for 20 minutes every month, preferably under load. Addendum: I ran the generator again today for about 2 hours powering just about the whole house: Fridge, Furnace, TV, lights, 2 laptops and a desktop computer. The generator took it all in stride. With all of those running the generator drew 20 to 22 amps. I watched the ammeter as the different loads came online and the generator had no issues providing starting amps. I changed the oil again and saw a little more metal flakes in the used oil. From now on I'll be waiting the full 20 hours to change it. ... show more
Reviewed in the United States on January 31, 2014 by Michael A. Hamende

Can't find a product?

Find it on Amazon first, then paste the link below.