The 10 Best 4000 Watt Generators Of 2024, Tested By Our Experts

Sarah Combs By, Sarah Combs
Updated
Best 4000 Watt Generators
Best 4000 Watt Generators

Our Top Picks

1. Best Overall: Champion Power Equipment 100302 Inverter

This generator features Economy Mode, which saves fuel and extends engine life. Plus, with Intelligauge monitoring voltage, frequency and operating hours, you get the assurance of knowing the power you rely on is always there. Read Review

2. Runner Up: Champion Power Equipment 100573 Inverter Generator

Producing clean power and featuring Quiet Technology and an extended run-time, this inverter generator is perfect for all your power needs. Plus, with its wireless remote key fob and Economy Mode you can save fuel for more efficient operation. Read Review

3. Best Design: WEN GN400i RV-Ready Inverter Generator

Generate clean power to safely operate sensitive electronics such as laptops, cell phones, and tablets with this parallel-ready panel that allows you to connect any two WEN inverter generators. Enjoy quiet operation on the campsite or around the house so you can enjoy nature in peace. Read Review

4. Best Performance: DuroMax XP4000S Portable Generator

With plenty of power and a powerful engine, this generator is perfect for when you need a reliable source of power. It also features an oil alert system that automatically shuts the generator off when it senses that the oil is low. Read Review

5. Best Style: All Power America APGG4000G Portable Generator

This lightweight and portable generator is designed with durability and undeniable power, offering a peak power of 4000 watts for all your needs. With its 208cc OHV Air Cooled Engine and recoil start, you can be sure to have the power you need whenever you need it. Read Review

It's never fun to be without power, especially in an emergency. But don't worry, owning a 4000 watt generator can give you the peace of mind you need. Not only do these generators offer reliable power when you need it the most, but they are also easy to use and maintain.

With a 4000 watt generator, you won't have to worry about running out of power during a power outage. Whether you need it for emergency power, camping, tailgating, or any other purpose, a 4000 watt generator can provide you with the power you need. Read on to learn more about some of the best 4000 watt generators available today.

After doing extensive study and analysis over a considerable time, We think the best 4000 watt generators is Champion Power Equipment 100302 Inverter. These powerful generators are reliable, durable and cost-effective, making them an ideal choice for anyone looking to power their home or RV. Other options presented here are certainly worthy of your attention, and in order to assist you in making an informed choice, We have compiled the following helpful buying guide.

Our Top Picks

TOP Choice #1 Champion Power Equipment 100302 Inverter
Our Score:
9.9
Champion Power Equipment

Champion Support: Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts

Advanced Open Frame Inverter Design: 50% quieter and 20% lighter than a traditional Champion 3500-watt generator, plus our Economy Mode feature saves fuel and extends engine life

Clean electricity for sensitive electronics: RV Ready with a 120V 30A RV, plus two 120V 20A household outlets with clean power (less than 3% THD) and 12V DC outlet with dual USB adapter

TOP Choice #2 Champion Power Equipment 100573 Inverter Generator
Our Score:
9.8
Champion Power Equipment

Champion Support: Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts

Advanced Open Frame Inverter Design: 50% quieter and 20% lighter than a traditional Champion 3500-watt generator, plus this inverter only produces Clean Power, and Economy Mode saves fuel

Wireless Remote Start: The wireless remote key fob allows you to start and stop your inverter from up to 80 feet away, plus the electric push-button start includes a battery

Quiet Technology and Extended Run Time: 64 dBA is great for RVs, tailgating, your next project or home backup, with 4000 starting watts and 3500 running watts for up to 17 hours run time on gasoline

Parallel Ready: The optional Parallel Kit allows you to increase your power output even more by connecting up to two 2800-watt or higher inverters or digital hybrids

TOP Choice #3 WEN GN400i RV-Ready Inverter Generator
Our Score:
9.6
WEN

Includes two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle

212cc 4-stroke CARB-compliant OHV engine produces 4000 surge watts and 3500 rated watts

Parallel-ready panel allows you to connect any two WEN inverter generators for increased wattage output

Dimensions: 19.8" L x 13.8" W x 18.9" H | Weight: 66.1 lb

Generate clean power to safely operate sensitive electronics such as phones, tablets, televisions and computers

4 DuroMax XP4000S Portable Generator
Our Score:
9.5
DuroMax

Powerful Engine – The DuroMax 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

Complies with Emissions Standards – All DuroMax 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

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

Low Oil Shutoff – Protects your investment by automatically shutting the generator off when it senses that the oil is low

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

5 All Power America APGG4000G Portable Generator
Our Score:
9.3
All Power America

4000 Watt Peak Power, 3300 Watt Rated Power

4 Gallon Fuel Capacity, Low Oil Level Shut Down, Voltage Switch Equipped For Full Power Operation

1x AC Duplex 120V Outlet, 1x 120V/240V Twist-Lock Outlet, 1x 12V DC

7 HP 208cc OHV air cooled engine. Runs 8 hrs @ 1/2 load, Operating Noise 72 Db

EPA certified. Non C.A.R.B. Compliant, not available to ship to California

Complete with 2-NEMA 120V AC 20A Household, 1-NEMA 120V AC 30A L5-30R Locking, 2 x USB

Powerful 223cc OHV 4-Stroke engine provides an abundant power supply yet is easy to transport with the built-in telescoping handle and wheels

Complete with A-iPower’s “Low idle” technology for an extended run time of 5 hours at 100% load and 7 hours at 50% load

Equipped with a low oil alert light and low oil automatic shutdown, helping keep your generator performing year after year

Produces 4,000 starting watts with 3,500 running watts of clean and safe power for sensitive electronics such as phones, televisions, laptops, and other electronics

7 Ironton Portable Generator
Our Score:
9.0
Ironton

Low oil shutdown protects engine

4000 surge watts; 3200 rated watts

Two 120V 20A outlets, one 120/240V 20A locking outlet and one 12V DC outlet

EPA-compliant

Ironton 208cc OHV engine

212cc 4-stroke OHV engine produces 3800 surge watts and 3400 rated watts with a half-load runtime of up to 8.5 hours

Produces clean power to prevent damage to sensitive electronics such as smart phones, tablets and laptops

Extremely quiet operation minimizes noise;, EPA III and CARB Compliant

Dimensions: 23.2" L x 18" W x 20.1" H | Weight: 99.2 lb.Dimensions: 23.2" L x 18" W x 20.1" H | Weight: 99.2 lb

Fuel shutoff maximizes the generator’s lifespan by using up the remaining fuel in the carburetor before shutting down

Includes two three-prong 120V receptacles, one AC 120V NEMA TT-30R RV receptacle, one 12V DC receptacle, two 5V USB ports, a digital load and fuel display, and a two-year warranty

223cc engine provides 4,750 surge watt and 3,750 rated watt

Features electric start, low-oil shutdown, an automatic voltage regulator and overload protection to maximize safety

Includes wheel kit and foldable handles for easy transport

Digital readout helps manage oil changes and maintenance schedule

CARB and EPA III meet requirements for sale in all 50 states

10 Champion Power Equipment 200986 Portable Inverter Generator
Our Score:
8.7
Champion Power Equipment

INTELLIGAUGE: Monitor voltage, frequency and operating hours with ease, plus the EZ Start Dial simplifies startup while Economy Mode monitors power consumption in real time

QUIET TECHNOLOGY: 61 dBA is great for RVs, tailgating, or camping with 4500 starting watts and 3500 running watts and up to 14 hours run time on only 2.3 gallons of gasoline

CHAMPION SUPPORT: Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts

CLEAN POWER: RV Ready with a 120V 30A RV, plus two 120V 20A household outlets with clean power (less than 3% THD) and a 12V automotive-style outlet, plus a handy dual port USB adapter

PARALLEL READY: The optional parallel kit (sold separately) enables this inverter to connect with another 2800-watt or higher Champion inverter to double your output power

What to Look For in a best 4000 watt generators?

Actually, when you decide to invest in best 4000 watt generators for yourself, lots of things to consider! It's harder to choose since the product comes with many types, functions, and features from different manufacturers. That’s why you should find a reliable space to acquire knowledge related to the item. 

We’ve highlighted the essential features of the best 4000 watt generators below. Along with checking out the list of best models in the list, you should also carefully read the buying guide here:

Type

You need to decide which generator type is best for you: a portable or standby generator. This will help you decide if you just want the lights to stay on or if you need to power other electrical components such as the refrigerator, window, central air conditioner, and the fridge.

Automatic Start

Whole home generators can automatically start when power goes out. This allows the generator to automatically start supplying power when there is no electricity from the utility. This feature is usually only available on standby generators, and not portables. These systems can provide peace of mind and may be more expensive than the security that your generator will automatically turn on without interrupting vital systems like heating and cooling.

Size

Installing home generators requires space. So make sure that you consider the dimensions of all models. You can find generators in a variety of sizes, from smaller units measuring less than 3ft to more large units measuring 5ft or more. A general rule of thumb is that the generator with the highest power rating will be larger.
Be aware that the clearance between your home and generator may be determined by local codes or model specifications. A small generator may require only 18 inches of clearance.

Fuel Source

Generators are generally powered by either gasoline, natural gas or propane.
The majority of portable generators run on gasoline and can generally keep fridges and lights running for several hours. These generators can't be relied upon for long-term power backups, such as when there is no electricity for several days.
Propane and natural gas are used more often for large home-standby generators. These fuels can be used for larger home standby generators as they are cleaner-burning and offer on-demand power.
Solar or battery-powered power sources are an alternative to traditional fuel-powered generators. These machines have different capabilities, and their run time can vary widely. However, they might be the best match for you if your power requirements are less than minimal. They are typically used for camping only, not home.

Wattage

A generator's wattage is the measure of its ability to provide power for whatever it plugs into. This information is crucial to understand about any generator that you are considering.
However, this number does not represent the entire picture. Wattage is made up of three parts: power needed to turn on an appliance and power required to maintain it running. It also includes power necessary to sustain a power surge, which is when regular juice returns to normal and all appliances start to work again. Many appliances use more power for startup than their run energy consumption. You could overload your generator when you turn on appliances and other devices. If the generator can't provide enough power, it could overload. You need to know how many watts your generator can generate, depending on whether it is powering just one item or the whole house.
An increase in generator costs is generally associated with a higher wattage. Most people agree that it's better to have enough power than not to be able to run your fridge or keep cool by a fan.

Warranties

A warranty is usually included with the purchase of a generator. The warranty covers both labor and parts for most residential inverter and portable generators. For standby generators which can be larger investments, you will usually get a 3- to 52024 warranty period.
Certain warranties may also include travel expenses for technicians to visit the generator and fix it. However, this depends on which manufacturer you are using.

FAQs

What are the benefits of a 4000 watt generator?

A 4000 watt generator provides reliable power for a variety of applications, including powering your RV, camping, tailgating, and home backup power. This size of generator is powerful enough to run multiple appliances at once, and is great for outdoor activities.

What type of fuel do 4000 watt generators use?

Most 4000 watt generators run on gasoline, although some models may be able to run on propane or diesel fuel. Check your generator’s manual for more specific information about the type of fuel it requires.

How long will a 4000 watt generator run?

The amount of time a 4000 watt generator can run depends on the size of the fuel tank, the load being powered, and the type of fuel used. Generally, 4000 watt generators can run for up to 10 hours on a full tank of gasoline.

Are 4000 watt generators easy to transport?

Yes, most 4000 watt generators are designed for easy transport. They usually have four-wheel designs with a handle, as well as built-in carrying handles. This makes them easier to move around and transport when necessary.

After knowing the suitable kinds of best 4000 watt generators and the features you wish, it’s high time for you to start your shopping. Note that you shouldn’t run out to a particular store or start scrolling through online sales just yet. With the development of technology, especially the expansion of sale sites, you can easily find your buddy. 

Remember to check out our site weekly round-up to ensure that the current sales on best 4000 watt generators perform well in our tests. So you can catch up with them as soon as possible. Would you please give us your feedback for better service? Many thanks!


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About Sarah Combs

Sarah Combs
Sarah Combs is a visual editor who loves to travel and hike. She enjoys taking photographs of her journeys, which help her to remember the beautiful places she's been to. Sarah is grateful for the opportunities that she has had to see the world and looks forward to continuing to explore new places in the future. Sarah is the editor of CampfireHQ since 2021 and has written on a variety of topics, from camping, and hiking to other outdoor guides.

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