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DuroStar DS4000S, 3300 Running Watts/4000 Starting Watts, Gas Powered Portable Generator

Product Description

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

8 Hour run time

4000 Watt Surge/3300 watt continuous

4 Gallon gas tank/8 hour run time

EZ-Pull recoil start

EPA Approved

Automatic low oil shut off

Imported from USA

Great for camping, RVs, sporting events, home back-up power, job sites, and more, the DuroStar DS4000S gas-powered
generator has a 7.0-horsepower air-cooled overhead valve engine with a recoil start that cranks out 3,300 constant
running watts of power (and a peak of 4,000 watts; learn more about wattage needs below). 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.

DS4000S panelHeavy duty steel frame with four-point fully isolated motor mounts (view larger). DS4000S recoilRecoil
starting (view larger). Note for California residents: This model is not CARB-compliant. Units sold to California must
be CARB-compliant.

The power panel features the main controls, including start switch, volt meter, and circuit breaker. It offers two
120-volt, 20-amp, 3-prong outlets (NEMA 5-20R) to supply power to all of your home appliances, plus one 120-volt, 30-amp
outlet (NEMA L5-30) for high-powered tools.

The DS4000S has an 8-hour run time at 1/2 load, and it has a 4-gallon fuel tank that also includes an easily readable
gauge. The heavy duty steel frame has four-point fully isolated motor mounts for smooth and quiet operation. Other
features include a recoil start, super quiet muffler that reduces engine noise (69 dBA rating), and automatic low-oil
shut off to protect the engine. An optional wheel kit is also available for the DS4000S, enabling easy portability.
Backed by a 1-year limited warranty.

What's in the Box

DuroStar generator; tool kit; operating instructions

Compare the DuroStar Portable Generators

Model # DS4000S DS4000WGE DS7200 DS7200Q

CARB compliant No No No No

Fuel Gas Gas Diesel Diesel

Arc welding -- Yes -- --

Enclosure Open steel frame Open steel frame Open steel frame Fully enclosed frame

Running watts 3,300 3,500 5,500 5,500

Starting watts 4,000 4,000 6,000 6,000

Engine 7.0 hp air-cooled OHV 16.0 hp air-cooled OHV 186F single-cylinder, 4-cycle, air-cooled 186F single-cylinder,
4-cycle, air-cooled

Starting method Manual Electric/manual Electric/manual plus
wireless remote Electric/manual plus
wireless remote

Low oil shutdown Yes Yes Yes Yes

Spark arrestor No No Yes Yes

Fuel tank size (gallons) 4.0 7.0 3.83 3.83

Run time
@ 50% load 8 hours 8 hours 12 hours 12 hours

Outlets (2) 120V, 20-amp, 3-prong;
(1) 120-volt, 30-amp twist-lock (2) 120V, 20-amp, 3-prong;
(1) 120-volt, 30-amp twist-lock (2) 120V, 20-amp, 3-prong;
(1) 120-volt, 30-amp twist-lock;
(1) 120/240-volt, 30-amp twist-lock (2) 120V, 20-amp, 3-prong;
(1) 120-volt, 30-amp twist-lock;
(1) 120/240-volt, 30-amp twist-lock

Handle style Optional Flip-up Flip-up None

Wheel type Optional Knobby all-terrain Slick style Built into bottom

Warranty 1-year, limited 1-year, limited 1-year, limited 1-year, limited

Your Generator Needs

To determine whether a generator is appropriate for your needs, you need to first add up the wattage of tools,
appliances, and motors you want to run at the same time. Then select a generator with the running wattage rating to
match or exceed the total load.

Keep in mind that tools and appliances with electric motors require additional surge wattage at startup that can be
double or triple the normal running wattage requirement. Look at the surge watts required and make sure you choose a
generator with enough additional wattage to start them. (And remember that you're typically not starting more than half
of the items at the same time.)

Here's a sampling of power ratings for common household appliances.


Furnace Fan (gas or oil only) 1/8 HP 300 500

1/6 HP 500 750

1/4 HP 600 1000

1/3 HP 700 1400

1/2 HP 875 2100

Refrigerator 700 2200

Microwave Oven 625 800

Coffee Maker 1750


Toaster 1050-1600 0

Electric Range/Oven 12,500 0

Well Pump 1/3 HP 750 1400

1/2 HP 1000 2350

Sump Pump 1/3 HP 800 1300

1/2 HP 1050 2150


Lights On Bulb

Television 300 0

Garage Door Opener 1/4 HP 550 1100

1/3 HP 750 1400

Portable Heater 100-1500 0

Hair Dryer 1100-1600 0

Iron 1200 0

Water Heaters Gas 500 1500

Electric 7000-7500 0

Computers Desktop 600-800 0

Notebook 200-250 0

Monitor 200-250 0

Printer 400-600 0

Fax Machine 600-800 0

Cordless Telephone 100 0

Note: These are only estimated wattages. Please check your particular appliance for actual wattage.