- POWERFUL DUROSTAR ENGINE: The DS4000s is Powered by a DuroStar 7.0 Hp, air cooled OHV engine w/low oil shutoff.
- PLENTY OF POWER: With 4,000 starting watts and 3,300 running watts, this unit is a workhorse that provides plenty of power to handle multiple jobs from powering high voltage appliances to heavy duty power tools.
- 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.
- POWERING EVERYONE ANYWHERE: The DS4000s is EPA and CARB approved for use in all 50 states.
- FUEL TANK CAPACITY (GASOLINE): 3.96 GALLONS
Durostar DS4000S Portable Generator
Durostar Portable Generator
generators

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- At ebay.com you can purchase Fuel Tank Cap For DuroStar DS1050 1050 Watt 2 HP Gas Powered Portable Generator for only $8.99 , which is 99% less than the cost in Amazon.com ($1,399.01).
- The lowest price of Durostar DS10000E Gas Powered 10000 Watt Electric Start Portable Generator, Red/Black was obtained on June 13, 2025 12:02 pm.
Richard Moore –
Ok I’ve had the generator 3 years now. first let me tell you I have the most unreliable electric service of anyone I know, every time the wind blows my lights go out. Most of the time it takes at least one or two days before power is restored. I used to go get a motel room at $85 per night until the lights come back on. That all ended when I got this generator. I have used it about 15 or 20 times in the last 3 years. It always starts right up and runs my refrigerator a small ac unit in my bedroom, my tv and any lights {led} in the house. It will run anywhere between 10 to 15 hours on a tank of gas {4 gal}. All my neighbors are suffering while I’m watching tv with cool air and cold drinks.Best purchase ever 5 stars Wow! 4 years still runs great. Well it’s been 5years sents I got this generator. In that time I have had to use it many times and I just love it.
Rami –
I got the generator at noon, I gave it a quick test run, Attached the wheel kit and stored it my garage.At 6pm we had an outage, I pulled out the generator, started it, Attached my long extended cord and saved the day!The first run was very simple, I just followed the instructions.The only problem I had, is that the generator not coming with any oil, I had gas in advance but needed to jump to the gas station to buy 10w-30 oil.
Trevor Mankus –
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 ONIt 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!
jahMoon –
Don’t buy things like generators off Amazon – No support!Ran the first time 4 months ago and now it doesn’t. If you want to learn about how gas motors work then this one is for you! Called tech and I’ve drained gas out, replaced the spark plug, replaced the oil, sprayed the carburetor, removed the carburetor for cleaning and it still doesn’t work. If I’d bought this from Costco or any other brick and mortar store I could have just taken it back. I’m out $ and time I’ve spent on this POS.
Janine Smith/Steve Citron –
Been running this on propane and it runs good. Conflicting instructions, some say don’t choke for propane and others say do choke. I had to choke. Ajighle the choke lever until you get it running really smooth. Also, instruction sheets were hidden on top of motor when I got it and ignition keys are in that packet, so I had to call company to figure out where they were. Negative battery cable needed to be connected, none of instructions tell you that, I had to read the reviews. That all said it seems to run good.
Lunatic –
I purchased this generator prior to Irma hitting Florida. It’s been running non-stop for four days now. It’s running two refrigerators, entertainment system, various fans, a portable air conditioner, and various other odds and ends. Five gallons of gas seems to last about 17 hours.I’m impressed.
EatMoreVeggies –
Purchased this unit a couple of years ago. It has run for max 10 hours total, and now it will not generate electricity. The engine runs fine, but no electricity is being generated, no activity on voltmeter, no power in outlets.Can not be relied upon in emergencies.
Pierre Filion –
Great generator for its size and price. Started at -23c on electric and -33c pull start no problem. Would definitely recommend to anyone looking for a generator of this class. Recomend using preminum grade gasoline to avoid ethenol related complications. The only problem is that the starting battery is no longer working only 7 month after purchase dispite making sure it was maintained properly. After 3 power outages it did what it was expected to do. I also use it to power my air compressor or my electric garden tiller when needed.
Brooke –
Light weight. And easy to use!!
rogerdoucet –
Fonctionne tres bien, delais totaux de la commande a la livraison 3 jours seulement
Amazon Customer –
It is a very good generator easy to set up and test run . It is very nice to have the electric starting feature / starts up instantly. The price was far below any equivalent units . Also all the voltage readings specs and tests have shown me that this unit is a winner cheers Dan.