Top 9 Best 4000-Watt Generators In 2024: Ultimate Guide

Searching for a reliable 4000-watt generator can feel like navigating an endless maze. Trust me, I’ve been there, overwhelmed by the countless options and specifications, trying to find a model that’s quiet yet powerful enough.

Good news – your search ends here! This article offers you well-researched recommendations of the best 4000-watt generators on the market in 2024. So, let’s power up your knowledge!

Top 9 4000-Watt Generators for 2024: Comparison Table

Sl No.Product NameStarting WattsRunning WattageFuel TypeFuel Tank CapacityWeight
1DuroStar DS4000S4000 Watts3300 WattsGasoline3.96 Gallons92 lbs
2DuroMax XP4400E Gas Powered4400 Watts3500 WattsGasoline3.96 Gallons122 lbs
3WEN GN400i RV-Ready4000 Watts3500 WattsGasoline1.85 Gallons70.4 lbs
4WGen3600CV4650 Watts3600 WattsGas4 Gallons106 lbs
5GENMAX GM5500i5500 Watts5000 WattsGasoline3.6 Gallons116.6 lbs
6Champion Power 100522 Generator4375 Watts3500 WattsGasoline4.7 Gallons108.5 lbs
7AIVOLT Generator4300 Watts3450 WattsGas1 Gallons54.9 lbs
8POXURIO DK4000iSA Inverter Generator4000 Watts3200 WattsGasoline1 Gallon44.1 lbs
9Pulsar PGD40ISCO 4000W Portable Gas Inverter Generator4000 Watts3200 WattsGasoline1 Gallon47.3 lbs

1. DuroStar DS4000S

best 4000-Watt Generator: DuroStar DS4000S


  • Portable gas-powered generator
  • Output wattage of 4000 watts, voltage of 120 volts
  • Runs on gasoline with a fuel tank volume of 3.96 gallons
  • Engine displacement of 208 cubic centimeters, 4 – stroke engine type
  • Provides up to 8 hours of runtime
  • Covered by a 3 – year warranty


Peak Wattage4,000
Running Wattage3,300
Running Amperage at 120V27.5
Runtime at 25% Load26 hours
Runtime at 50% Load12 hours
Engine ManufacturerDuroStar Power Equipment
Engine Type4-Stroke
Valve TypeOHV
Engine Cooling TypeForced Air
Engine Size208 cc
Engine Speed3600 RPM
Starting TypeRecoil
Fuel Delivery SystemCarburetor
Fuel TypesGasoline
Oil Cooling TypeSplash
Recommended Oil10W-30
Recommended Oil TypesBlended, Conventional, or Synthetic
Oil Capacity20.3 fluid oz
Automatic Low Oil ShutdownYes
Cast Iron SleeveYes
Bearing TypeStainless Steel Ball Bearing
EPA CertifiedYes
CARB CertifiedYes
50 State EmissionsYes
Volt MeterAnalog
5-20R Outlets2
L5-30R Outlet1
Voltage120 Volts
Frequency60 Hertz
Winding Material100% Copper Windings
Automatic Voltage RegulatorYes
RV ReadyYes
Fuel Tank Capacity Gasoline3.96 Gallons
Fuel GaugeYes
All Metal ConstructionYes
Product Dimensions24″ Long x 17″ Wide x 17″ High
Product Dry Weight92-lbs
Product Weight102-lbs
Volume (db)69 dB
Warranty3 Year
What’s in the Box?DS4000S Generator, Oil funnel, Spark Plug Wrench, Tool Set, and Manual


  • Complies with Emissions Standards: This portable generator is both EPA and CARB-approved and meets strict environmental guidelines. By choosing the DuroStar DS4000S, you can have peace of mind knowing that you are using an environmentally friendly generator.
  • Power Panel for Maximum Compatibility: The power panel on this generator includes a selection of outlets, including 2 120V household outlets and 1 120V 30A twist lock outlet. This means you can connect various appliances and devices easily, providing maximum compatibility for your power needs.
  • Low Oil Shutoff to Protect Your Investment: With the low oil shutoff feature, this generator automatically shuts off when it senses that the oil is low. This helps protect your investment by preventing damage to the engine and ensuring its longevity.
  • Powerful Engine for Versatile Use: The DuroStar DS4000S is equipped with a powerful 208cc OHV engine that can handle multiple jobs. Whether you need to power high-voltage appliances or heavy-duty power tools, this workhorse engine has got you covered.
  • Plenty of Power for Your Needs: This portable generator can handle heavy loads with an impressive peak wattage of 4,000 watts and running wattage of 3,300 watts. From basic necessities like lights and refrigerators to more demanding items like air conditioners and high-amperage power tools – rest assured that there will be enough power to keep everything running smoothly.

The DuroStar DS4000S Portable Generator is ideal for outdoor enthusiasts and DIY homeowners who want reliable power with minimal fuss. Its environmentally friendly practices, powerful engine, low oil shutoff system, and wide range of outlets will make any task easy and enjoyable. Get your hands on a DuroStar today!


As a power tool enthusiast and frequent camper, I’ve found the DuroStar DS4000S to be an exceptional value. Its robust 208cc OHV engine packs quite a punch, delivering 4,000 peak watts and 3,300 running watts of power – more than enough for anything from household appliances during an unexpected blackout to high-demand power tools on my latest project site.

What sets it apart is its compliance with both EPA and CARB standards; this eco-friendly generator truly puts my green-minded conscience at ease.

The DuroStar DS4000S isn’t just about raw power, though—it’s also designed with convenience in mind. The intuitive Power Panel features multiple outlets for maximum compatibility—whether you need to plug in your refrigerator or your drill machine—in addition to a voltmeter that always keeps me informed about voltage output.

Plus, the built-in low oil shutoff function is like having an extra set of eyes watching over things; it automatically turns off the generator when oil levels get too low, saving me from expensive damage down the line.

I’ve tested many portable generators, but none have combined performance, user-friendliness, and environmental awareness quite like the DuroStar DS4000S does—that’s why we put it as our No.1 pick!

Whether preparing for emergencies or planning your next adventure, the compact yet potent yellow-and-black powerhouse has your back.


  • Complies with emissions standards set by EPA and CARB.
  • The power panel includes multiple outlets for maximum compatibility.
  • The low oil shutoff feature protects the generator from damage.
  • The powerful engine provides ample power for various applications.


  • It may be noisy during the operation.
  • Some users may find it difficult to start.
  • The generator does not come with a wheel kit, making it less portable.

2. DuroMax XP4400E Gas Powered

Powerful and Reliable Portable Generator for Camping and RV Trips

DuroMax XP4400E Gas Powered


  • Gas-powered portable generator with 4400 watts output
  • Electric ignition system for easy starting
  • Runs on gasoline fuel for convenience
  • 3500 watts running wattage and 17 starting wattage
  • Durable metal construction for long-lasting use
  • Compact design with dimensions of 24″L x 17″W x 17″H


Peak Wattage4,400
Running Wattage3,500
Running Amperage at 120V29.17
Running Amperage at 240V14.58
Runtime at 25% Load25 hours
Runtime at 50% Load10 hours
Engine ManufacturerDuroMax Power Equipment
Engine Type4-Stroke
Valve TypeOHV
Engine Cooling TypeForced Air
Engine Size212cc
Engine Speed3600 RPM
Starting TypeKey Switch
Electric StartYes
Recoil StartYes
Fuel Delivery SystemCarburetor
Fuel TypesGasoline
Oil Cooling TypeSplash
Recommended Oil10W-30
Recommended Oil TypesBlended, Conventional, or Synthetic
Oil Capacity20.3 fluid oz
Automatic Low Oil ShutdownYes
Cast Iron SleeveYes
Bearing TypeStainless Steel Ball Bearing
EPA CertifiedYes
CARB CertifiedYes
50 State EmissionsYes
GFCI OutletsYes
Volt MeterAnalog
12V Post1
Voltage120/240 Volts
Frequency60 Hertz
Winding Material100% Copper Windings
Automatic Voltage RegulatorYes
Battery Type12V SLA
Battery IncludedYes
RV ReadyYes
Home Backup ReadyYes
Fuel Tank Capacity Gasoline3.96 Gallons
Fuel GaugeYes
All Metal ConstructionYes
Product Dimensions25″ Long x 24″ Wide x 21″ High
Product Dry Weight122-lbs
Product Weight130-lbs
Volume (db)69 dB
Warranty3 Year
Wheel & Handle KitIncluded
Wheel TypeMetal Hub
Wheel Diameter8-Inches
What’s in the Box?XP4400E Generator, Tool Set, Oil funnel, Spark Plug Wrench, DC Charging Cables, Wheel and handle Kit, and Owners Manual


  • Fully Featured Power Panel: The DuroMax XP4400E Portable Generator comes with a power panel that includes a wide selection of outlets, making it compatible with various applications. This means you can easily connect your household appliances, RV equipment, or power tools without any hassle.
  • Low Oil Shutoff: One of the most important features of this generator is its low oil shutoff mechanism. It automatically shuts off the generator when it senses that the oil level is low. This not only protects your investment but also ensures the longevity and performance of the generator.
  • MX2 Technology: With MX2 Technology, you can get maximum power from each of the 120-volt receptacles. You have the flexibility to choose between operating at both 120V and 240V simultaneously or sticking to 120V only with full power. This feature is especially beneficial for RV owners who require different voltage options.
  • Powerful Engine: The DuroMax XP4400E boasts a powerful 210cc OHV engine capable of handling multiple jobs effortlessly. Whether you need to run high-voltage appliances or heavy-duty power tools, this workhorse engine provides plenty of power for all your needs.
  • Plenty of Power: With an impressive starting wattage of 4,400 and running wattage of 3,500, this generator can handle heavy loads without breaking a sweat, from powering essential lights and refrigerators during camping trips to running home air conditioners and high amperage power tools during emergencies or construction projects.

This durable, reliable generator is perfect for the adventurous outdoor enthusiast who needs a dependable source of power for camping trips and RV trips. With 4,400 starting watts and 3,500 running watts, you can trust that it will keep all your high-voltage appliances going with no issue. Get started today and start powering up your next adventure!


The DuroMax XP4400E Gas Powered Portable Generator grabs the No. 2 spot on our list for its outstanding performance and robust features that cater to a variety of user needs.

With an impressive output of 4,400 starting watts and 3,500 running watts, this generator is sufficiently powerful to keep your essential appliances working during power outages or camping outings. The key decision-making factor here has been its gas-powered 210cc OHV engine, known for durability and reliability.

This product shines with its well-equipped power panel, including two standard household outlets and one specialized twist-lock outlet, ensuring compatibility with various applications.

Also notable is the MX2 Technology, enabling you to optimize the usage across both 120V and 240V receptacles depending on your needs – you can run your RV comfortably using just the DuroMax XP4400E! Additionally, it boasts safety functions like a low oil shut-off feature, which preserves lifespan by preventing damage due to low oil levels.

Lastly but importantly, let’s not forget about user convenience – it comes with an electric start function, making it very easy to use even for those who may not be mechanically inclined. Choosing DuroMax XP4400E means opting for a state-approved portable powerhouse that wouldn’t let you down when it really counts.


  • Portable and easy to transport for camping and RV trips
  • Versatile power panel with multiple outlets for various applications
  • Automatic low oil shutoff to protect the generator
  • Powerful engine capable of handling heavy loads


  • Loud noise during the operation
  • Heavy and difficult to transport
  • Limited runtime on a single tank of gas

3. WEN GN400i RV-Ready

Portable Power for Adventurers on the Go.

WEN GN400i RV-Ready


  • RV-ready: The WEN GN400i is specifically designed for use with RVs, featuring a 120V RV-ready receptacle.
  • Portable: This generator is lightweight and compact, making it easy to transport and store.
  • Multiple power outlets: It includes two 120V NEMA 5-20R receptacles, two 5V USB ports, and one 120V TT-30R receptacle.
  • Long runtime: With a full tank of gasoline, the GN400i can run for up to 7 hours at half load.
  • Powerful performance: It has a running wattage of 3500 Watts and an output wattage of 4000 Watts, providing ample power for various applications.
  • Reliable engine: The generator features a durable and fuel-efficient four-stroke engine with an engine displacement of 212 cubic centimeters.


Fuel TypeGasoline
Power SourceGas Powered
Voltage120 Volts
Output Wattage4000 Watts
Special FeaturePortable
Product Dimensions19.8″L x 13.8″W x 18.9″H
Model NameRV-Ready
Engine Type4 Stroke
Tank Volume1.85 Gallons
Engine Displacement212 Cubic Centimeters
Runtime7 hours
Frequency50 Hz
Running Wattage3500 Watts
Item Weight70.4 pounds
Item model numberGN400i
Included ComponentsInverter generator with two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle


  • Includes two 120V NEMA 5-20R receptacles: You can easily plug in multiple devices and appliances, such as laptops, lamps, or fans, without the need for additional adapters or extension cords. This convenience saves you time and hassle.
  • Two 5V USB ports: Charge your smartphones, tablets, or other USB-powered devices directly from the generator itself. No need to search for an available power outlet or worry about your devices running out of battery while on the go.
  • One 120V RV-ready TT-30R receptacle: Perfect for powering up your recreational vehicle (RV) during outdoor adventures. Whether you’re camping or tailgating, this generator provides reliable electricity to keep all your essential RV appliances running smoothly.
  • Parallel-ready panel: Want even more power? Easily connect two WEN inverter generators together using the parallel-ready panel feature. With increased wattage output, you can confidently run larger appliances like air conditioners or refrigerators without any worries.
  • Clean power for sensitive electronics: The advanced technology of this generator ensures a stable and clean power supply that won’t damage your delicate electronics. Safely operate phones, tablets, televisions, computers – all your favorite gadgets – without any concerns about surges or fluctuations that could cause harm.
  • Compact and lightweight design: Measuring just 19.8″ L x 13.8″ W x 18.9″ H and weighing only 66.1 lbs., this open-frame inverter generator is portable

This WEN GN400i RV-Ready Generator is perfect for the person who loves a life of adventure and needs reliable power on the go – from camping to tailgating events. With its 4000 surge-watt output7-gallon fuel tank, and portability, this generator offers convenience and dependable power wherever your adventures take you.

So, if you’re looking to stay powered up while exploring exciting new places, get your WEN GN400i RV-Ready Generator today!


As an experienced user of the WEN GN400i RV-Ready 4000-Watt open-frame inverter generator, I can personally vouch for its performance. This black and orange power beast is fitted with a potent 212cc 4-stroke OHV engine that consistently delivers up to 4000 surge watts and 3500 rated watts.

The clean energy output sets it apart; it’s entirely safe to plug in your sensitive electronics like cell phones, laptops, or tablets without the risk of voltage spikes.

Among my favorite features are two three-pronged NEMA receptacles, ample USB ports for convenience, and a special RV-ready outlet. Very thoughtful if you ask me! You get over seven hours of run time from its efficient gallon tank at half-load capacity.

Meanwhile, engage the eco-mode switch for fuel economy–you don’t want gasoline wastage during those camping trips. Uniquely designed to mirror pure sine wave technology minimizes distortions under load, making it ideal for running sensitive devices.

It ranked No3 on our list due to some noticeable features: automatic adjustment of fuel consumption based on connected devices; easy linking capability via WEN Parallel Connection Kit (sold separately) for higher wattage needs, all this backed by an impressive two-year warranty plus comprehensive support network from skilled technicians.

Honestly, isn’t that reassurance enough? The chunky weight might be off-putting, but consider its vast feature set – clearly a solid trade-off!


  • Provides ample power output with 4000 surge watts and 3500 rated watts
  • Offers convenient charging options with two USB ports and multiple receptacles
  • Enables safe usage of sensitive electronics thanks to its clean power generation
  • Allows for increased wattage output by connecting two WEN inverter generators together


  • It can be quite heavy and bulky, making it less portable compared to smaller inverter generators.
  • It may produce higher noise levels compared to some other inverter generator models.
  • A limited number of receptacles may not be sufficient for users with multiple devices or appliances that need to be powered simultaneously.

4. WGen3600CV

Reliable power for outdoor adventures and RV vacations.



  • 3600 watts running wattage
  • 14 hours runtime
  • CO sensor for safety
  • Automatic voltage regulation
  • Low oil shutdown feature
  • Recoil start ignition system.


Gasoline Peak Watts4650
Gasoline Running Watts3600
Gasoline Peak Amps38A
Gasoline Running Amps30A
AC Voltage120V
AC Frequency60 Hz
Outlets1 120V Duplex 5-20R
1 120V L5-30R
1 120V TT-30R
Total Harmonic Distortion≤23%
GFCI OutletsNo
Outlet CoversYes
Transfer Switch ReadyNo
RV ReadyYes
ST Switch ReadyNo
Noise Level68 dBA
Fuel GaugeYes
Fuel Tank Capacity4 gal. (15 L)
Gasoline Run Time @ 25%14 hrs.
Gasoline Run Time @ 50%10.5 hrs.
Starter TypeRecoil
Choke TypeManual
Engine Displacement212cc
Engine TypeOHV 4 Stroke
Economy ModeNo
Smart IdleNo
Oil Capacity20.3 oz. (0.6 qt.)
Engine Oil Type10W30
Automatic Low Oil ShutdownYes
Carbon Monoxide (CO) SensorNo
Overload ProtectionYes
CARB CompliantYes
Grounding SystemFloating Neutral
Battery IncludedNo
Included AccessoriesOil Bottle, Oil Funnel, Spark Plug Wrench
Warranty (Residential)3 Year Limited
Warranty (Commercial)1 Year Limited
Product Dimensions23.3L x 17.5W x 18.7H in.
Dry Unit Weight1006 lb. (45.6 kg)
Packaging Dimensions24.2L x 18.5W x 19.5H in.
Shipping Weight107.1 lb. (48.6 kg)


  • 212cc Westinghouse 4-Stroke OHV Engine: This powerful engine ensures reliable performance and durability, allowing you to power your devices and appliances during emergencies or outdoor activities.
  • Automatic Low Oil and Carbon Monoxide (CO) Shutdown: With this safety feature, the generator will automatically shut down if oil levels are too low or if carbon monoxide levels become dangerous, protecting both your equipment and your health.
  • Plug-and-Play Convenience: The WGen3600CV comes with everything you need to get started right away, including oil, an oil funnel, a tool kit, and a user’s manual. Minimal assembly is required, making it incredibly easy to use right out of the box.
  • Multiple Receptacles for Versatile Use: Featuring two 5-20R household duplex receptacles, one RV-ready TT-30R 30 Amp receptacle, and one L5-30R 30 Amp receptacle. These outlets allow you to power various devices simultaneously while ensuring safety with rubber covers.
  • Extended Run Time: With its 4-gallon fuel tank capacity and efficient operation, this generator can provide up to 14 hours of run time per tank. This allows you to keep essential appliances running for longer periods without interruption.

This product is ideal for RV owners, outdoor adventurers, and do-it-yourselfers who need reliable power on the go. With Westinghouse’s trusted quality and performance, the WGen3600CV Portable Generator offers powerful yet portable energy. Get it now to keep your appliances running no matter where you are!


As an outdoor adventure enthusiast, I can confidently say the Westinghouse WGen3600cv Portable Generator is a powerhouse that offers peace of mind. During my last camping trip, this gas-powered generator kept my travel trailer fully functional – from lights to air conditioning.

With 4650 peak watts and 3600 running watts, it efficiently powered all necessary equipment for up to 14 hours with just one four-gallon fuel tank fill! The convenience was only amplified when it effortlessly hooked to the RV-ready TT-30R 30A outlet.

I was especially impressed by its thoughtful design elements, like the built-in fuel gauge and automatic low oil shutdown features. They proved handy during those critical nighttime power needs on our extended weekend campout in Montana woods.

Additionally, rubberized covers on outlets provided extra assurance against harsh weather conditions. Although I’m already quite handy with tools, the user-friendly yellow touchpoints made operations simpler than ever!

Westinghouse went above and beyond with the WGen3600cv’s durability as well, thanks to its robust cast iron sleeve encapsulating a powerful 212cc engine under the hood. This gives me confidence that it will stand up against many adventures yet to come!

Plus, knowing they have a nationwide customer service network backing their product gives me added peace of mind while exploring off-grid locations deep into nature where access may be limited or non-existent.


  • 4650 peak-watt power provides ample electricity for various needs.
  • RV-ready 30A outlet allows for easy use while traveling or camping.
  • CO sensor ensures safety by automatically shutting down in the presence of carbon monoxide.
  • Comes with oil, a tool kit, and a user’s manual for hassle-free setup and operation.


  • It may contain residual oil and fuel odor.
  • Minimal assembly required.
  • Recoil start.

5. GENMAX GM5500i

Ultra-lightweight, eco-friendly generator for outdoor adventures and emergencies.


  • Electric start for easy and convenient ignition
  • Powerful 5000 running watts for a reliable power supply
  • Lightweight plastic construction for easy portability
  • Compact dimensions of 24″L x 18.5″W x 21.1″H for space-saving storage
  • Dual color design in black and orange for a visually appealing look
  • Gas-powered engine with a 4-stroke system for efficient performance


Gasoline Starting Watts5500W
Gasoline Running Watts5000W
Engine Displacement312cc
Start TypeRecoil/Electric
Gasoline Starting Amps at 120V22.9A
Gasoline Running Amps at 120V20.8A
Gasoline Starting Amps at 240V22.9A
Gasoline Running Amps at 240V20.8A
Engine Type4-stroke
Engine SpeedVariable
Fuel TypeGasoline
Fuel GaugeYes
Outlets120V 20A Duplex (5-20R), 120V 30A (TT-30R), 12V DC Automotive
Gasoline Capacity3.6 gal.
GFCI OutletsYes
Covered OutletsYes
Engine Oil Type10W-30
Gasoline Tank MaterialSteel
Covered Circuit BreakersYes
Engine Oil Capacity0.89 qt.
Gasoline Run Time at 1/4 Load13h.
Low Oil Shut-OffYes
Noise Level62 dBA
Wheel TypeSolid
Wheel Diameter5.5 in.
DC OperationUSB 5V 2.1A/1A
VoltmeterIntelligauge with Power Meter
EPA CertifiedYes
Automatic Voltage RegulationYes
CARB CompliantNo
Length24.0 in.
Width18.5 in.
Height21.1 in.
Net Weight116.6 lb.
Length (boxed)27.2 in.
Width (boxed)21.6 in.
Height (boxed)24.6 in.
Gross Weight (boxed)127.8 lb.


  • CO Detect Shutdown: Includes a sensor that automatically shuts down the generator if it detects dangerous levels of carbon monoxide. This ensures the safety of you and your family, preventing potential poisoning incidents.
  • Quiet and Lightweight Structure: With its compact design and lightweight construction, this portable generator is incredibly easy to carry around. It also operates at an ultra-quiet level of only 60 decibels, allowing for peaceful use on camping trips or backup power situations without disturbing others.
  • Multifunctional Power Supply Panel: The power supply panel on this generator includes various useful features such as a low oil alarm, overload alarm, CO warning light, output indicator features, and fault alarm function. These functions ensure that you are always aware of the status of your generator and can take necessary precautions to prevent any issues.
  • Wide Application: This GENMAX portable generator is perfect for various applications, including home emergency power supply, campgrounds, construction sites, mobile devices, and power outages. Its durable design allows it to easily handle multiple jobs – from powering high-voltage appliances to heavy-duty power tools in different job sites.
  • Powerful Engine: With 5000 rated watts and 5500 peak watts at less than 3% THD (Total Harmonic Distortion), this generator delivers reliable performance when you need it most. The telescoping handle makes it easy to transport, while the manual or electric start option provides convenience. Additionally, the generous 3.9-gallon fuel tank with a fuel gauge offers up to 10 hours.

This generator is perfect for the environmentally conscious, tech-savvy outdoor enthusiast who requires an ultra-light and quiet power source. The GENMAX GM5500i prepares you for any emergency or recreational activity with its ECO mode feature and CO Detect Shutdown Sensor. Buy now, and rest assured that your energy needs are covered!


The GENMAX GM5500i is a powerful and portable inverter generator with a 5500W ultra-quiet gas engine. It’s designed to be resourceful, featuring an automatic ‘Eco mode’ that adjusts the engine speeds to save fuel and reduce sound emissions.

This feature also enhances its user experience by providing optimum power efficiency, proving advantageous during power outages or when powering high-voltage appliances at home.

One of the standout features of this product is the inclusion of a CO Detect Shutdown sensor, which aids in preventing Carbon Monoxide poisoning – a crucial safety element for any generator user.

Its ease of use is further heightened by its compact suitcase design, making it incredibly lightweight and perfect for backup home use & camping trips. Moreover, it offers up to 10 hours of run time on a full tank, demonstrating strength and longevity.

Designed with the user’s needs in mind, the multifunctional power supply panel comes with useful indicators such as a low oil alarm and overload alert while also incorporating an output indicator feature.

The GENMAX GM5500i confidently demonstrates its adaptability, catering to multiple situations, including construction sites and campgrounds, by including an RV outlet and being perfect for mobile devices during travel. This robust yet versatile generator sets itself apart from other products within the same category due to these thoughtful design choices.


  • CO Detect Shutdown for prevention of carbon monoxide poisoning.
  • Ultra quiet operation with a runtime sound of only 60 decibels.
  • Lightweight and portable design for easy carrying.
  • Multifunctional power supply panel with various features such as low oil alarm and overload alarm.


  • Limited fuel tank capacity (3.9 gallons) may require frequent refueling in extended-use scenarios.
  • Higher price point compared to other portable generators with similar power output.
  • Some users have reported issues with the electric start feature, requiring manual starting instead.

6. Champion Power 100522 Generator

Reliable and powerful energy for your outdoor adventures.


  • Portable and easy to transport
  • 3500 watts of power output
  • Runs on gasoline for convenience
  • Comes with a wheel kit for added mobility
  • Long runtime of up to 12 hours
  • RV ready for outdoor use


Gasoline Starting Watts4375W
Gasoline Running Watts3500W
Gasoline Starting Amps at 120V36.5A
Gasoline Running Amps at 120V29.2A
Outlets120V 30A Locking (L5-30R), 120V 30A (TT-30R), 120V 20A Duplex (5-20R)
GFCI OutletsNo
Covered OutletsYes
Covered Circuit BreakersYes
Gasoline Run Time at 1/2 Load12 h.
Noise Level68 dBA
Parallel CapabilityNo
DC OperationNo
Automatic Voltage RegulationYes
Start TypeRecoil
Engine BrandChampion
Engine Size208cc
Engine Type4-stroke
Engine Speed3600
Fuel TypeGasoline
Fuel GaugeNo
Gasoline Capacity4.7 gal.
Gasoline Tank MaterialSteel
Engine Oil Type10W-30
Engine Oil Capacity0.6 qt.
Engine Oil IncludedNo
Low Oil Shut-OffYes
Wheel TypeSolid
Wheel Diameter8 in.
PGMA G300-2018 CompliantNo
EPA CertifiedYes
CARB CompliantYes
Length24.9 in.
Width22.9 in.
Height22.4 in.
Weight108.5 lb.


  • 3-year limited warranty with FREE lifetime technical support: With the Champion Power 100522 Generator, you can enjoy peace of mind knowing that it comes with a generous 3-year limited warranty and lifetime technical support. This means that if you ever encounter any issues or have questions about your generator, you can rely on Champion’s dedicated experts to provide assistance at no extra cost.
  • INTELLIGAUGE for easy monitoring: The INTELLIGAUGE feature allows you to conveniently monitor the voltage, frequency, and operating hours of your generator. This ensures that you are always aware of its performance and can take necessary actions accordingly. Whether you need to check if it’s time for maintenance or want to keep track of usage, the INTELLIGAUGE makes it easy.
  • Covered outlets for versatility and safety: The Champion Power 100522 Generator is equipped with multiple covered outlets, including a 120V 30A locking outlet, a 120V 30A RV outlet, and two 120V 20A outlets. These outlets not only provide ample options for connecting various appliances and devices but also come with Volt Guard built-in surge protector. This important safety feature prevents overloads and safeguards your valuable equipment from damage caused by power surges.
  • Reliable and powerful performance: With starting watts of up to 4375 and running watts of 3500, the Champion Power 100522 Generator delivers reliable power when you need it most. It can run continuously for up to 12 hr.

This generator is perfect for campers, tailgaters, and travelers who value reliability and power. With the RV Ready Portable Generator from Champion Power Equipment, you can enjoy peace of mind and have all your power needs taken care of confidently. Get yours today!


Every camping trip or power outage situation could use the Champion Power 100522 Generator. This 4375/3500-watt RV Ready Portable generator is a reliable and powerful machine.

From my experience, it provides all the electrical support you need to keep your appliances running smoothly during an outdoor adventure or during unexpected blackouts at home. One feature that stands out for me is its Intelligauge which has allowed me to monitor voltage, frequency, and operating hours easily.

Operating the Champion Power Equipment 100522 is pretty straightforward, even for someone who isn’t particularly tech-savvy. The first time I used it, I was able to successfully start and run a 15,000 BTU RV air conditioner without any hitches – something I attribute to the unit’s robust single-cylinder OHV engine.

It also features Cold Start Technology, which makes quick starts in cold weather quite effortless. Noise-wise, this generator only hits about 68 dBa from about 23 feet away – just as loud as your average vacuum cleaner.

With its foldaway handle and never-flat tires, transportation of this machine around your compound or campsite becomes incredibly easy, too. During one blackout we experienced last winter, this was our go-to source of backup power for essential home equipment such as lights, sump pump, refrigerator modem/router, etc. – performing excellently until the regular power supply resumed after approximately 12 hours!

Plus, Volt Guard’s built-in surge protector prevents overloads, ensuring all your equipment is safe from spikes in voltage. A purchase like this comes backed by a solid warranty package, including a three-year limited warranty accompanied by FREE lifetime technical support courtesy of Champion Support!


  • 4375 starting watts and 3500 running watts for reliable and powerful performance.
  • Up to 12 hours of run time on a full tank of gasoline.
  • Includes a Volt Guard built-in surge protector to keep appliances and equipment safe.
  • Low oil shut-off sensor for added safety during operation.


  • The noise level may be too loud for some users (68 dBA).
  • The generator is not dual fuel, meaning it can only run on gasoline.

7. AIVOLT 4300W Gas Generator

Ideal for outdoor enthusiasts and RV owners seeking quiet, reliable power.

AIVOLT 4300W Gas Generator


  • Portable gas-powered generator
  • 4300 watts of power output
  • Runs on a 4-stroke engine with a displacement of 149 cubic centimeters
  • Provides 5 hours of runtime
  • Includes a charging cable for convenience
  • Suitable for outdoor use in patio, lawn, and garden settings.


Starting Wattage4300 Watts
Running Wattage3450 Watts
Fuel TypeGas-powered
Voltage120 Volts
Runtime5 hours
Engine Type4 Stroke
Frequency60 Hz
Special FeaturePortable
Included ComponentsCharging Cable
Product Dimensions21.45″L x 13.78″W x 18.7″H
Engine Displacement149 Cubic Centimeters
Item Weight54.9 pounds


  • 2-year warranty with lifetime technical support: Have peace of mind knowing that your AIVOLT generator is backed by a reliable 2-year warranty. Plus, you’ll have access to FREE lifetime technical support from experts who can help answer any questions or troubleshoot any issues you may have.
  • EPA compliant and environmentally friendly: This AIVOLT generator meets the strict emissions standards set by the EPA, ensuring that it is as environmentally friendly as possible. By choosing an EPA-compliant generator, you’re making a conscious effort to reduce your carbon footprint and protect the environment.
  • CO Protect & Low Oil Shutoff for Safety: The CO Alert technology in this generator automatically shuts down the unit if unsafe levels of carbon monoxide are detected. This feature helps ensure the safety of you and your family while using the generator. Additionally, it has a low oil shutoff feature that protects both your generator and electronics from damage in case of low oil levels.
  • RV and parallel ready for convenience: With an included RV adapter, this AIVOLT generator is ready to power your RV for all your outdoor adventures. It also comes with a 12V DC battery charging cable so you can easily charge your vehicle’s power supply. And if you need even more power or runtime, connect another 4300W AIVOLT generator (parallel kit not included) to double its capabilities.
  • Multifunction control panel with LCD display center for ease of use.

This AIVOLT Generator is perfect for outdoor adventurers, RVers, and campers who need reliable power that’s quiet and efficient. Whether you’re at a campsite or preparing for an emergency in your home, this generator will give you peace of mind with features like CO protection, low oil shutoff, and overload protection. Get the ultimate portable power solution today!


Having spent considerable time with the AIVOLT Inverter Generator, I can confidently say it’s one of the best options out there for those in need of a reliable portable power source. It doesn’t matter if you’re planning an adventure-filled camping trip or armoring up against potential power outages at home – this is a generator that comes through when needed most.

What impressed me right off the bat was its remarkable noise control. Churning out 4300 watts yet humming as softly as a casual conversation, working or relaxing next to it was never an inconvenience.

Moreover, weighing in at just 51 pounds and sporting a sturdy carry handle, taking this generator on road trips is almost effortlessly straightforward. Provided RV adapter and parallel connectivity (should you invest in an additional unit down the line) make it even more valuable for those long-haul journeys where a consistent power supply could make all the difference between comfort and inconvenience.

The 5-in-1 LCD display kept me informed about oil levels, fuel statuses, and any looming system overloads while eco-mode nicely balanced performance against optimal fuel efficiency.

But what seals this deal is how seriously AIVOLT takes safety – their implementation of CO Alert technology automatically shuts down operations should unsafe carbon monoxide levels be detected! Additionally, they’ve committed to strict EPA emissions standards, ensuring that our environment pays no price for our convenience.

Summarizing my experience with AIVOLT’s generator – here’s superbly quiet performance blending seamlessly with user-friendly features, exceptional responsiveness during high-demand situations wrapped within environmentally-conscious design philosophy – All reasons why I strongly recommend considering the AIVOLT Inverter Generator your go-to choice when shopping for portable generators today.


  • 2-year warranty with FREE lifetime technical support.
  • Meets emissions standards and is approved by the EPA for environmental friendliness.
  • Equipped with CO Alert technology for safety.
  • RV and parallel ready, allowing for increased power or runtime.


  • Limited runtime of only 5.5 hours at 25% load.
  • A parallel kit for combining with another generator is not included.
  • It may be slightly heavier than some other portable generators.

8. POXURIO DK4000iSA Inverter Generator

Powerful and Quiet Portable Inverter Generator for Outdoor Activities.

POXURIO DK4000iSA Inverter Generator


  • Super quiet operation
  • 4000 watts starting wattage
  • 1-year warranty included
  • Suitable for commercial, residential, and camping use
  • Fuel powered with gasoline as the fuel type
  • Compact and lightweight design at only 44.1 pounds


Starting Wattage4000 Watts
Running Wattage3200 Watts
Fuel TypeGasoline
Item Weight44.1 Pounds
Voltage120 Volts
Special FeatureSuper Quiet
Product Dimensions20.08″L x 12.6″W x 18.9″H
Engine Type4 Stroke
Frequency50 Hz
Recommended UsesCommercial, Residential, Camping
Country of OriginChina
Batteries Required?No
Warranty Description1-year warranty


  • Lightweight Design: The POXURIO DK4000iSA Inverter Generator weighs only 45 pounds, making it incredibly easy to carry and store. No more struggling with heavy equipment when you need backup power for outdoor camping or emergency situations.
  • Parallel Operation: With the ability to support parallel operation, this generator allows you to connect 2 or 3 machines together, providing a power supply of over 4000W. This means that you can easily meet the needs of multiple electrical appliances or equipment at once.
  • Gas Powered: Unlike generators that require specific fuel types, the POXURIO DK4000iSA runs on gasoline – one of the most common fuels in people’s daily lives. Gasoline is convenient to store, affordable, and easily obtainable, giving you peace of mind when it comes to fuel availability.
  • Low Noise: Thanks to advanced sound reduction technology, this inverter generator produces a noise value of only 62 decibels during operation – much lower than traditional generators. This ensures a comfortable environment while using electricity and avoids disturbing your neighbors or fellow campers.
  • Strong Power: With a starting power of 4000W, the POXURIO DK4000iSA can cater to all your daily electrical needs. Whether it’s for camping trips, outdoor activities, commercial use, or home backup power – this portable generator has got you covered.

This product is perfect for those who need a reliable source of power on the go, whether it’s camping, attending events, or as an emergency backup. With its lightweight design and advanced sound reduction technology, the POXURIO DK4000iSA Inverter Generator is great for outdoor activities and offers powerful yet quiet performance that you can rely on—so why wait? Get yours today!


As an avid camper and frequent outdoor enthusiast, I was on the hunt for a powerful yet quiet generator that can cater to all my needs – enter the POXURIO DK4000iSA Inverter Generator. With its starting power of 4000W, this portable wonder energizes everything from phone chargers to coffee makers effortlessly.

Be it during alfresco dining at a camping site or working with tools in my truck between travels – this powerhouse has constantly delivered reliability.

What stood out for me is its robust performance and how quietly it operates. Even while churning out full power, all you hear is a steady hum equivalent to average conversation noise around us!

This significant reduction in sound levels makes any outing more enjoyable without sacrificing on convenience and electricity access. Moreover, being gas-powered adds another layer of practicality as gasoline is easily available and affordable.

The lightweight design greatly aids usability, too; at 45 pounds, this compact machine is easy to carry wherever you go, fulfilling your energy requirements seamlessly. An added perk – multiple DK4000iSAs can be connected parallelly if needed, which effectively means we have an expandable backup-power solution on hand!

To sum up – robustness packaged with utility-friendly design shifts, the POXURIO DK4000iSA Inverter Generator is way ahead in its league, adding considerable value to our daily lives across various scenarios.


  • Lightweight design for easy portability and storage.
  • Supports parallel operation for increased power supply.
  • Gas-powered for convenience, affordability, and availability.
  • Low noise production for a comfortable electricity consumption experience.


  • Limited power output compared to larger generators.
  • It may require multiple units for higher power needs.
  • Reliance on gasoline as a fuel source may be inconvenient or expensive in certain situations.

9. Pulsar PGD40ISCO 4000W Portable Gas Inverter Generator

Ultimate portable power solution for the modern nomad.

Pulsar PGD40ISCO 4000W Portable Gas Inverter Generator


  • Portable and lightweight design
  • Super quiet operation
  • Automatic voltage regulation ensures stable power output
  • Fuel efficient, providing longer runtime with 1-gallon tank
  • Inverter technology for clean and stable power suitable for sensitive electronics
  • CO alert feature for added safety during use


Starting Wattage4000 Watts
Running Wattage3200 Watts
Fuel TypeGasoline
Recommended Uses For ProductResidential, Camping
Item Weight47.3 Pounds
Voltage120 Volts
Product Dimensions18.9″L x 11.4″W x 17.3″H
MaterialAluminum, Plastic, Steel
Engine Type4 Stroke
Tank Volume1 Gallon
Engine Displacement145 Cubic Centimeters
Runtime4.5 hours (Half-load)
Frequency60 Hz
Engine Power Maximum5.5 Horsepower
Country of OriginChina
Special FeaturesPortable, Super light, Super Quiet, Automatic Voltage Regulation, Fuel Efficient
Batteries Required?No
Warranty Description3-year Limited Warranty


  • RV ready, AC ready, Fridge ready: This portable gas inverter generator is specially designed to be compatible with RVs, air conditioners, and refrigerators. You can power up your appliances on the go without any hassle or additional adapters.
  • 3200W Rated / 4000W Peak: With a powerful output of 3200 watts rated and 4000 watts peak, this generator can provide enough electricity to run multiple devices simultaneously. Whether you’re camping or facing a power outage at home, you won’t have to compromise on convenience or comfort.
  • 12oz gas tank: Equipped with a compact 12-ounce gas tank, this generator offers an incredible fuel efficiency that helps you save money on refueling costs. You can enjoy uninterrupted power for up to 4.5 hours at half-load without worrying about running out of fuel quickly.
  • 5 hrs run time @ half load: Thanks to its impressive runtime of approximately 4.5 hours at half load, this generator ensures that you have consistent power throughout the day or night. Say goodbye to frequent interruptions and hello to extended periods of reliable electricity supply.
  • 47.3 lbs [Extreme light weight]: Weighing in at just 47.3 pounds, this ultra-lightweight generator is easy to transport and move around as needed. Its compact size means it won’t take up much space during storage or while traveling in your RV or car. Enjoy the freedom and flexibility of having reliable power wherever you go!

This Pulsar PGD40ISCO 4000W Portable Gas Inverter Generator is perfect for the modern nomad who needs portable electrical power, whether it’s powering up your RV, AC unit, fridge, or small electronics. Get ready to hit the road and enjoy the luxury of uninterrupted power with this ultra-light, quiet generator. Buy now and make life on the road effortless!


As an avid camper, I have personally experienced the power and convenience provided by Pulsar’s PGD40ISCO Ultra Light Quiet 4000W Portable Gas Inverter Generator.

Weighing in at just 47.3 lbs., its extremely lightweight design makes it a breeze to move around campgrounds or job sites. The use of this generator on my backyard projects has been remarkable; it powers tools with ease and runs smoothly.

What sets the PGD40ISCO apart is its RV-ready AC output, making it perfect for road trips where access to electricity can be uncertain at times. It hits peak operation at 4000W, so you can confidently run things like your refrigerator for extended periods without worry.

Moreover, having a compact yet powerful gas tank that keeps everything running for up to 4.5 hours on half load is another great feature that gives peace of mind during longer outings or blackouts.

Despite all these fantastic features, what impressed me most was how quietly the Pulsar generator operates – allowing my family and neighbors undisturbed sleep while we enjoy an uninterrupted power supply throughout our camping adventures or stormy nights at home.


  • RV ready, AC, and Fridge ready for convenient use while camping or on the road.
  • Provides 3200W of rated power and 4000W of peak power for reliable performance.
  • It weighs only 47.3 lbs, making it extremely lightweight and easy to transport.


  • Limited run time at half load (4.5 hours)
  • Small gas tank capacity (12oz)
  • May not have enough power for larger appliances or equipment

4000-Watt Generator Buying Guide

When choosing a 4000-watt generator, be sure to consider important factors such as power output, fuel efficiency, noise level, and portability. Find out how these key features can impact your generator selection.

Read more to make an informed choice for your power needs.

Power Output

High power output is a crucial factor in choosing the best 4000-watt generator. These machines typically provide continuous power of up to 3500 operating watts and peak at around 4,000 burst watts, as seen with top picks such as the Westinghouse iPro42000.

That’s enough muscle to keep essential appliances like your refrigerator, furnace, and, in some cases, even central air systems running smoothly during an outage. I’ve found that understanding these numbers can significantly influence your decision on which model suits you best based on your specific needs.

Thus, power output becomes a defining element when browsing for our ideal 4000-watt generator.

Fuel Efficiency

Fuel efficiency plays a crucial role in determining the performance of a 4000-watt generator. High fuel efficiency means that your generator will use less energy to deliver the same amount of power, providing more runtime for every gallon of gas consumed.

For instance, an efficient model can operate at halfload for up to 15 hours on just 3.4 gallons of gas! That’s what makes it ideal for RV use or any other situations where you need continuous power over extended periods.

It provides you peace of mind by saving costs on fuel while also being eco-friendly – a win-win situation indeed!

Noise Level

The best 4000-watt generator for you could hinge greatly on its noise level. Typically, the sound emitted by these generators ranges from 50dB to a more noticeable 75 dB.

Let’s face it; nobody wants their peaceful surroundings disrupted by a loud generator humming! The good news is that quieter models operate at around soothing decibels of 50-60, ensuring serenity even during operation.

However, if you opt for an open frame variant, be prepared to deal with louder noise levels around 69dBA. Lastly, the more compact and mobile portable generators produce less noise than traditional ones.


Portability is a crucial factor when choosing a 4000-watt generator. These generators are designed to be relatively lightweight, allowing them to be easily carried by 2-3 adults. Additionally, they often come equipped with handles or wheels, making it even easier to transport them over shorter distances.

The portability of these generators enables convenient transportation and use in various locations, which is especially beneficial for those who need to move the generator frequently.

When looking for a portable generator, make sure to consider features like handles or wheels that facilitate easy transportation and save you from unnecessary hassle.


When it comes to finding the best 4000-watt generator for your needs, the DuroStar DS4000S and DuroMax XP4400E Gas Powered are two top recommendations. Both generators offer powerful output wattage and reliable performance.

Whether you need a portable option for construction, home backup or a gas-powered generator with electric ignition, these options have got you covered. Invest in the DuroStar DS4000S or DuroMax XP4400E generators for peace of mind and a reliable power supply whenever you need it.


What is the best 4000-watt inverter generator in 2024?

The best 4000-watt inverter generator in 2024 has an efficient fuel system, produces less noise, and offers reliable performance.

Does the best 4000-watt generator come with a remote start?

Yes, some of the top-rated 4000-watt generators offer a remote start feature, making them easy to operate from a distance.

Why should I consider buying a top-ranked 4000-watt generator?

Investing in one of the best-reviewed generators ensures you’re getting high power output, advanced features like remote start, and quieter operation for your needs.

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