The Best 4000 Watt Portable Generators (Updated In 2021)

Best 4000 Watt Portable GeneratorsWhat you might already know is, a 4000-watt generator can provide you with enough power to run a couple of home appliances, job site power tools, or even give you portable power for your camping trip, RVing, or tailgating. Best 4000-watt generators will also give you reliable energy that is easy to transport.

However, there is a problem with purchasing the best 4000-watt portable generator. Why? The market has lots and lots of similar products, putting a buyer in an impossible-position to buy the right model. Luckily, I’m here with some help. My guide is here to help you select the best model to invest in and expect the best.

Let’s jump right in!

6 Best 4000 Watt Portable Generators in 2021

1. Westinghouse iGen4500 Portable Inverter Generator

Westinghouse iGen4500DF Dual Fuel Inverter GeneratorMy first best 4000-watt portable generator is a robust model that provides high-performance for more inclusive reliability, the Westinghouse iGen4500. It’s a super-quiet mobile model designed with Inverter Technology. The generator is powerful enough to give you 3700 Rated and 4500 Peak Watts of power that you can transport anywhere you need it.

As a premium power solution, Westinghouse iGen4500 is here to meet your portable power needs during power outages, recreation activities, or on your RV. The model is also designed to ensure you always get clean, stable power ideal for powering or charging your sensitive appliances and electronics. And thanks to the dual USB port, you can now connect your portable devices directly to the generator.


  • Lightweight, compact design
  • Automatic rotating digital display
  • EPA, USFS, and CARB Compliant
  • Convenient Push-Button Start
  • Wireless remote start
  • Built-in USB ports


  • High on the price
  • Quite heavy for one person to lift

2. DuroStar DS4000S Portable Generator

DuroStar DS4000SDuroStar DS4000S is another well designed portable generator that provides reliable and transferable power. As a mighty power unit, the generator is equipped with a steady, robust air-cooled OHV engine designed to give you whopping 3,300 running watts and 4,000 starting watts of power. That allows it to handle multiple applications from heavy-duty power tools to high-voltage appliances.

For ease of use, the generator also features a conveniently-placed power panel equipped with a voltmeter and a selection of outlets for optimal compatibility. The generator has a rugged construction that keeps it heavy-duty and durable yet lightweight and portable. It does also come with an optional wheel kit available for enabling easy portability.


  • Heavy-duty air-cooled engine
  • Smooth and quiet operation
  • Automatic low-oil shut-off
  • Heavy-duty steel frame
  • Super-quiet muffler
  • Optional wheel kit


  • No electric start
  • Wheel kit sold separately

3. Champion 76533 Dual Fuel Portable Generator

Best Champion Dual Fuel Generator ReviewsIn the third place is another well-built, robust model, the Champion 76533, a portable dual-fuel generator. The generator features a well-weighted mobile design featuring a wheel kit and foldable handles for easy maneuverability and storage. Unlike the previous models, this generator features dual-fuel technology allowing it to run on either gasoline or propane with propane hose included.

What’s more, dual-fuel technology gives the flexibility of choosing the available fuel, especially during a power outage. The best part is, for quick, easy, and safe fuel switching, the generator is fitted with a patented fuel selector switch. It does also come with a volt guard, which is a built-in surge protector guarding your appliances against voltage spikes.


  • Folding handle and never-flat tires
  • Patented fuel selector switch
  • Easy-touch push-button start
  • Built-in surge protector
  • Cold start technology
  • Durable steel frame


  • None

4. Champion 46539 Portable Generator w/Wireless Remote Start

Champion 3500 Watt RV Ready Portable Generator 1Champion 46539 is another portable, reliable model with lots of praise from its users. As an RV-ready portable generator, it does feature a maneuverable design, compact size, and lightweight construction. There is also a foldaway handle with a comfortable grip and an included wheel kit with two never-flat tires. The set up makes it super easy to move the generator here and there even during storage.

When it comes to performance, the generator hasn’t gone anything short of fabulous. It comes with a mighty 196cc Champion Engine, tested, and proved to provide reliable power. It’s also fitted with a steady easy-push electric start, an Intelligauge, and a cold start so that you can have the most comfortable time starting the generator.


  • Easy Touch Electric Start w/battery
  • Convenient Wireless Start
  • TT-30R RV Ready outlet
  • Built-in surge protector
  • Cold Start Technology


  • None

5. Pulsar PG4000iSR Quiet Inverter Generator

Pulsar PG2000iSNPulsar PG4000iSR, a versatile and rugged power source, is an Inverter Generator here to give you alternative power for any occasion. It cranks 3500 Running Watts and 4000 Peak Watts of power for up to 12 hours continuously on its 3.5 gallons of fuel. Practically, this PG4000iSR is both a hardy and reliable choice for an outdoor event like tailgating or camping.

When it comes to portability, the generator comes with a compact size and a portable design featuring never-flat wheels and extendable handle making storage and maneuvering a breeze. For a smooth start, the generator is equipped with an electric push start, and a remote start, adding even more convenience. It is C.A.R.B approved and is compliant, making it usable in all 50 states.


  • Compact design w/extendable Handle
  • Convenient wireless remote start
  • Stable sine WAVE Technology
  • Carb, EPA, & CSA approved
  • Integrated USB outlets
  • Parallel capability


  • Lacks LCD display
  • A bit loud at higher wattages

6. Champion 46565 Portable Generator

Champion Power Equipment Model 46565Champion 46565, a gasoline-powered portable generator, is my last model. It’s also a highly praised model that has impressed a lot of its users. The generator has proven more than capable of delivering enough and reliable power for camping, tailgating, industry application, and home backup power. When it comes to portability, the model is also high up. It features a never-flat wheel kit and a foldable handle for easy transportability and storage.

In terms of performance, the generator has a couple of integrated features that ensure it delivers easy-to-use, reliable, and long-lasting power. It comes with a mighty 196cc Champion OHV engine intended to provide you with 3,500 running watts and 4,000 peak watts of power. It also features an integrated auto-choke to deliver dependable one-touch starting.


  • Champion 4-stroke OHV engine
  • USDA approved spark arrestor
  • Durable tubular steel frame
  • True one-touch starting
  • Low oil shut-off sensor
  • EPA approved


  • Not CARB compliant: Not For Sale in California

Best 4000-Watt Portable Generator: Buying Guide:

Every buyer wants to invest in a generator that performs exemplary and also require less maintenance. Right? And with the best 4000-watt portable generator, it is much easier to have the power transported to wherever place you need it most. But to get the buying right, you need to consider the following factors:

Power requirement

Before you can do any search, do a little research on how much wattage you need. The calculation will require you to add the wattage necessary for each of your appliances or power tools, in terms of starting and running power for the motor-driven applications. That is crucial since the 4000-watt rating might be the starting watts or the running watts, and that wouldn’t be so great.


Portability will tell how easy it is to transport and store the generator. And since you might be needing a power source to carry with you while going for camping, RVing, or tailgating, you might want to buy a generator that has never-flat wheel kit and a handle for easy pulling or pushing.

Type: Inverter or convectional

Will you buy an inverter generator or a conventional generator? What is the difference? The two have one thing in common; they’re all designed to give you power. However, an inverter generator is a bit compact, lightweight, rugged, portable, and also low-noise, compared to the conventional one. The convectional model, on the other hand, provide reliable, heavy-duty power with continuous energy drawn for power tools and industrial applications. So, the choice is yours now. Which one will you buy?


Apart from checking the noise level of the generator, which needs to be lower than 70dBA, you also need to check on some features that will make it super easy to maintain and operate the generator. Some of these features include; Easy-touch push-button start, Built-in surge protector, Cold start technology, low-oil shut-off, overload protection, volt-guard, Intelligauge among others. Check what features the generator has that makes it better than its comparison.

Best 4000 Watt Portable Generator (FAQs)

Q. Can I use my 4000-watt portable generator in cold weather?

A. Mostly, gasoline generators do not start in extreme weather conditions. However, some models like Champion 76533 feature cold start technology, which helps to start the generator in cold weather. Additionally, the choke feature can also help as it balances gasoline with gas vapor to boost the start.

Q. Can my generator explode?

A. Yes. Gasoline and propane are highly flammable fuels, and when mishandled can lead to an explosion. That’s why it’s always recommended you wait until the generator is cold for you to refuel it.


You can now rest assured that with all the above information, it’s much easier to settle on the best 4000-watt portable generator worth your investment. Ensure you have bought a generator that meets your needs and also that falls under your budget. Good Luck!

About the author

Sharif Miah

I am Sharif, 22, a student, currently doing the BBA program. Besides, I am an online Blogger.

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