DuroStar DS4000S 4000 Watt 7.0 Hp air cooled OHV gas engine portable RV generator

Item Number: DS4000S

Retail Price: $499.99

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Our Price: $329.99

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Let's face the facts; all you have to do is listen to the news today to recognize that natural disasters and infrastructure failures have become part of our everyday life. And with a tough economy, every penny counts. With that in mind, the DuroStar DS4000S is not only the essential generator to safeguard your family, but it can do so at an extremely affordable price.

This rugged workhorse is ideal for a wide variety of uses from getting you through a power outage to keeping you and your family supplied with all the necessary conveniences of home while being miles from nowhere.

The DuroStar DS4000S Features:
  • Durable DuroStar 7.0 Hp, air cooled OHV engine w/ low oil shutoff.
  • Heavy duty steel frame with four point fully isolated motor mounts for smooth and quiet operation.
  • Full power panel with oil warning light, volt meter, circuit breaker and power outlets.

  • Power Plug Configuration
    • (2) - 120 Volt, 20 Amp, 60 Hz - NEMA 5-20R Outlets
    • (1) - 120 Volt, 30 Amp, 60 Hz - NEMA L5-30 Outlet
  • Run-Time [ @ 50% Maximum Output ]: 8.0 hrs.
  • Low oil shut-off protects engine.
  • Super quiet muffler reduces engine noise.
  • Max AC Output: 4000 Watts
  • Rated AC Output: 3300 Watts
  • Technical Details
    • Engine Type: 4-Stroke OHV Single Cylinder With Forced Air Cooling System
    • Ignition System: Non-Contact Transistor
    • Displacement: 208CC
    • Starting Type: Recoil
    • Fuel Tank Capacity: 4 Gallons
    • Noise Level: 69 dB

  • DuroStar DS4000S 4,000 Watt Portable Generator
  • Tool Kit
  • Operating Manual

  • 1 Year DuroStar Factory Warranty

Customer Reviews

Average! Customer Rating:

(10 Reviews)

Items 1 to 10 of 32 total

per page
January 24th, 2015

emergency tool

good product, good price, good delivery
October 15th, 2014

Great generator

received it in five days from ordering and I must say so far so good.
Tile contractor
Bay area
October 5th, 2014


Worked just as described. Note, there is a choke for starting a second time. Easy to set up, easy to start with one pull, little vibration, and low sound output. Very pleased especially with the price which saved me over $100 from others looked at when shipped.
September 3rd, 2014

Excellent product and value

Bought this generator to power my new workshop. It has performed as advertised, and been a dream to operate. Starts on first pull 99% of the time; runs beyond specs on a tank of gas. I have used it every day for the last few weeks. (The folks who make this generator also listen to their customer's feedback. There were several comments made about the need for a long-necked, clear tubed oil funnel to fill oil properly. My unit came with a simple funnel with a clear tube attached that works perfectly!)
Jackson, GA
February 12th, 2014

Excellent Value

My first time ordering from GFO and the process was smooth. Excellent price with free shipping! The unit works great and is much quieter than the older portable generators.
McKees Rocks PA
November 22nd, 2013

Nice Generator

It started on the 1st pull and ran like a champ.
el cajon, ca.
September 17th, 2013

Great generator for the price!

I am a contractor and own a small farm. Over several decades I have owned and used several generators of this size range. This generator started the very first pull, and has started the first pull every time subsequently. For a 4000W it is very quiet. You would have to pay almost 10 times this price to get a Honda to get it quieter...not worth the price. I changed the oil after 5 hours, 10 hours, and 20 hours. Very important in these small motors to help insure a long life. After that 20 hours is fine for oil change intervals. The generator has run very smoothly when using and starting up numerous saws, tools, etc. I only have 20 hours on it so far, so I cannot say what it will be like after a year or so, but so far, I am very happy with the generator and the Wheel Kit that I got for it.
Durango, CO
March 1st, 2013

Great for the price

I bought this for my Jayco 5th wheel and it works great
New Mexico
December 18th, 2012

great lil back up

bought her after hurricane irene hit nyc . used it for three days after hurricane sandy no issues powered every thing i needed plus ran line to my neighbor. going to purchase nat gas conversion kit from us carb for her.
staten island nyc
November 7th, 2012

Great Generator

We were without power for 7 days thanks to Hurricane Sandy. This machine ran for six days straight without issue. I was able to run a fridge, 46" plasma tv with cable box, and I hard-wired my oil burner. I changed the oil the day after the power was restored (it was pretty black). I am thinking of upgrading to a 220 so I can power my water heater.
Suffolk County, NY

    Items 1 to 10 of 32 total

    per page
    • Item Number: DS4000S
    • Retail Price: $499.99

      Click To See
      Quantity Discounts
      Our Price: $329.99