DuroMax XP4000S 3300W/4000W Gas Generator New

Sale price$399.00

Call Us Now for The Lowest Price: 430-888-4217
Free Shipping. No Sales Tax.

Handling Time:

Products ship in 1-2 Business Day.

Shipping Time:

Please allow 2-4 Business Days for Delivery.

Why Shop with Us?

☑ Fast Response & Service Times Add Peace of Mind for Your Business and Home.

☑ Friendly, Expert Staff Trusted By Hundreds of Homeowners & Business Owners

☑ SSL Secure Payment Gateway Make Shopping Easy and Stress-Free.


The DuroMax XP4000S 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.



The DuroMax XP4000S in use

The DuroMax XP4000S

The DuroMax XP4000S houses a 208 cc (7 hp) DuroMax OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 3,300W along with a peak wattage of 4,000W.

Enjoying a noise rating of 69 dBA (less noisy than background music), this generator gets running thanks to a conventional pull-start mechanism.

With a full tank, the XP4000S can operate for up to 26 hours (fuel consumption around 0.15 GPH), thanks to its fuel capacity of 4 gallons.

As the XP4000S has a relatively high THD (<12%), it is not recommended to use it to power sensitive electronic devices.


The control panel includes the following 3 AC outlets:

Duplex 120V 20A (5-20R)

120V 30A (L5-30R) receptacle

This DuroMax generator isn't quite RV Ready, but it features an L5-30R receptacle, allowing a simple RV connection through an L5-30P to TT-30R adaptor.


The dimensions of the DuroMax XP4000S, which are L23 x W17 x H18 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

As the XP4000S's weight is only 92 lbs, it can follow you and your power needs anywhere. In addition, it is even easier to grab and move the generator around thanks to its open frame design.

It is also possible to purchase the official wheel kit(opens in a new tab) to help you transport the XP4000S more easily.


Panel of the DuroMax XP4000S

The XP4000S's control panel

The XP4000S's status and activity may be monitored conveniently via the control panel, as it features a handy voltmeter that allows you to easily monitor power output anytime.

In addition to this info, a light indicator serves to show you when its oil levels are insufficient.

The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.

As for its security measures, the device features an automatic low oil shut-off and an overload protection (circuit breaker), letting you use it with a peace of mind.

While the standard documentation and an owner's manual(opens in a new tab), helpful for starting the device promptly, come with the DuroMax XP4000S, the following accessories are also included: tool kit and funnel. An official storage cover is also available, as a separate purchase.


Inverter No
Parallel capable No
RV ready No
Fuel Gasoline
Engine 208 cc DuroMax 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
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (L5-30R)
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 17 x 18 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 811640013066






DuroMax stands behind this Generator with a 5 Year parts and technical service warranty. Our USA based teams are available to help walk-through, troubleshoot or diagnose. Nationwide service centers fix any issues - DuroMax has you covered!


Where can I safely store the generator?
The generator should always be stored in a cool dry area with the ventilation openings free from any obstructions. 

Where is it recommended to operate the generator?
The generator should be placed outdoors a least 5 ft in all directions from any flammable material, and at least 20 ft from any windows or doors. The generator should also be placed in a dry weather protected area. 

How do you safely transport a generator?
To safely transport the generator the generator should be emptied of all gasoline prior to transport, and the generators spark plug should be disconnected. Please note do not obstruct any ventilation openings and keep the generator in a cool dry area during transport.

Do alternative fuels to gasoline like propane or natural gas produce CO?
Yes, anytime any fuel is burned even alternative fuels like propane or natural gas, the CO fumes will be produced, and the generator should always be running outdoors 20 ft from any windows or doors for safety.

Can the generator be operated directly in rain or snow?
No, the generator shouldn’t ever be operated directly in the rain or snow without some type of overhead protection to keep it protected from the elements. Please note that there are multiple generator weather protection options including running generator tents that can be used to keep the generator dry during a rain or snow storm.


How to remove the generator shipping braces?
Step 1- lay a large piece of foam from the generator packaging on a level surface. Step 2- Flip the generator upside down onto the foam piece. Step 3- Remove the brightly colored shipping braces located on the bottom of the generator. Please note that the shipping braces should always be removed before any operation of the generator to avoid engine damage. Please also note that the generator should never be filled with any oil or gasoline prior to removing shipping braces

How do you connect the generator battery?
When the generator is first received the battery will have a disconnected negative lead to avoid the battery losing charge while in storage. The disconnected negative lead will be located above and behind the battery location, take the disconnected end of the negative lead and bolt this to the negative battery post. Please note to be careful not to allow your tool or any other conductive object touch the battery post and generator frame at the same time. 

What type of oil should I use in my generator?
If this is your first time using the generator you should use a conventional 30W, 10W-30, or 5W-30 oil to help break the product in for the first 6-8 hours. After the product has been broken in you can use either a synthetic or conventional oil depending on preference in either 30W, 10W-30, or 5W-30 depending on your climate. 10W30 will be sufficient for most temperatures, however if ambient temperatures exceed 95°F you should use 10W40.

How do you start the generator using the recoil start?
The first step to starting the generator using the recoil start will be to turn the circuit breaker and idle control feature to the “OFF” position. The second step will depend on the fuel used, if using gasoline turn the gasoline valve “ON”, and the fuel selector switch to the gasoline selection (if applicable for the generator model); if your using propane turn the gasoline valve “OFF” and move the fuel selector switch toward the propane selection (if applicable for the generator model), then connect your propane tank and turn the propane tank to the “ON” position; after the proper instructions are followed with starting on the desired fuel, move the battery switch to the “ON” position or if applicable move the start switch to the “RUN” or “ON” position depending on the generator model version. Finally, pull the recoil out slowly until tension is felt, then yank the recoil cord to start the generator; repeat this final step as necessary until the engine starts.

What type of gasoline should be used in the generator?
The generator will be compatible with 87 Octane gasoline or better with a 10% or less ethanol cut. Please note that the lower the ethanol content the more this can extend the life of your generator and parts. 


How to change the generator oil?
The first step will be to place the generator on a level surface before starting the oil change, then you’ll want to locate the generator drain bolt, which will be located on the center of the bottom protruding crankcase lip and place a container below the oil drain bolt location. The next step is to remove the drain bolt with a 12 mm hex wrench and allow the oil to fully drain. Finally, replace the oil drain bolt and remove the main oil fill cap, then add oil until you see the oil on the oil cap threading. Please note that as long as you fill the oil on a level surface, then the generator is built to spill out the excess oil before it can be overfilled. 

How to empty gasoline from your gas tank?
To remove the gasoline from the generator the first step will be to turn the fuel valve to the “OFF” position, and you’ll want to place a container under the fuel filter cup located on the bottom of the fuel valve, then remove the fuel filter cup and turn the fuel valve to the “ON” position to allow the gasoline to drain from the gas tank. Once fully drained replace the fuel filter cup and the draining process is complete. 

How to prepare your generator for storage?
To properly prepare the generator for storage first turn the breaker “OFF” and run the generator for 3-5 minutes; then turn the fuel valve to the “OFF” position and allow the generator to run until it stalls out. The next step will be to turn the battery switch, or engine switch depending on model to the “OFF” position, then remove the fuel filter cup, and drain the gas tank of all gasoline by turning the fuel valve to the “ON” position. The next step will be to remove the 2nd to the lowest bolt on the bottom of the carburetor bowl to remove any excess fuel from the carburetor bowl, and remove the spark plug; then add 2 tablespoons of 10W-30 oil into the spark plug hole and pull the recoil to help lubricate the cylinder. Finally, replace the spark plug, and remove the battery, then charge the battery on a trickle charger. Please note that the generator should always be stored in a cool dry location that’s protected from the elements and properly ventilated. 

How to properly maintain your generator battery?
The generator battery can lose charge in as little as 3 to 6 months of storage and should always be properly maintained. To properly maintain your generator battery we’d recommend disconnecting the generator battery from your generator and hooking the battery up to any 12V trickle charger that’s compatible with SLA batteries. Please note that extremely cold or hot conditions can accelerate the rate the battery loses charge.

How frequent should I perform maintenance on my generator?
The maintenance can vary depending on the model and whether you’re running the generator with light or heavy use. To properly follow maintenance please ensure that you read you full maintenance schedule on your included generator manual and it’s recommended to keep track of your hours and maintenance performed in your manual maintenance log. 

Payment & Security
American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard Shop Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

You may also like

Recently viewed