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Finding the right Best 4000 watt generators can be challenging, as there are a lot of brands to choose from. No worries, we have you covered with our top best 4000 watt generators ! We’ve researched more than 12 hours testing many best 4000 watt generatorsand put together helpful buying guides for your consideration.

But these three have some more competitions too, so be sure to check out our list of the top 10 best 4000 watt generators. If you are ready to choose a new best 4000 watt generators, then we recommend checking out our recommendations for the best 4000 watt generators. But if you’d like to learn more about the various types of best 4000 watt generators available and how to choose the right one for you, read on!

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1 WEN GN400i RV-Ready 4000-Watt Open Frame Inverter Generator, CARB Compliant, Black/orange WEN GN400i RV-Ready 4000-Watt Open Frame Inverter Generator, CARB Compliant, Black/orange
2 Pulsar PGD40ISCO Ultra Light Quiet 4000W Portable Gas Inverter Generator Pulsar PGD40ISCO Ultra Light Quiet 4000W Portable Gas Inverter Generator
3 A-iPower SUA4000iED 4000 Watt Portable Inverter Generator Gas & Propane Powered, Small with Electric Start RV Ready for Camping, Tailgate, or Home emergency A-iPower SUA4000iED 4000 Watt Portable Inverter Generator Gas & Propane Powered, Small with Electric...
4 DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV Ready, 50 State Approved DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV Ready, 50 State Approved
5 A-iPower SUA4000i 4000 Watt Portable Inverter Generator Gas Powered, Small with Quiet Operation RV Ready for Camping, Tailgate, or Home emergency A-iPower SUA4000i 4000 Watt Portable Inverter Generator Gas Powered, Small with Quiet Operation RV...
6 WEN 56380i Super Quiet 3800-Watt RV-Ready Portable Inverter Generator with Fuel Shut-Off and Electric Start WEN 56380i Super Quiet 3800-Watt RV-Ready Portable Inverter Generator with Fuel Shut-Off and...
7 Cummins 40KYFA6747 4000W Gas Generator Cummins 40KYFA6747 4000W Gas Generator
8 [Upgraded Version] ALLPOWERS S2000 Portable Power Station 2000W (Peak 4000W) MPPT Solar Generator 1500Wh Backup Battery with 4 AC Outlets for Outdoor Camping RV Emergency Off-Grid [Upgraded Version] ALLPOWERS S2000 Portable Power Station 2000W (Peak 4000W) MPPT Solar Generator...
9 XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine Camping 4-Cycle Gas Powered Air Cooled OHV (EPA) XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine Camping 4-Cycle Gas Powered Air...
10 RVMP 4000W RV Dual Fuel Installed Generator | Flexible and Reliable 4.0kW Dual Fuel Installed Generator for Recreational Vehicles | Dual Fuel Installed Generator for RVs | RVMP-AM-4L1-RV401 RVMP 4000W RV Dual Fuel Installed Generator | Flexible and Reliable 4.0kW Dual Fuel Installed...
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List of Top 10 best 4000 watt generators In Detailed

1
WEN GN400i RV-Ready 4000-Watt Open Frame Inverter Generator, CARB Compliant, Black/orange
  • 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
  • Parallel-ready panel allows you to connect any two WEN inverter generators for increased wattage output
  • 212cc 4-stroke CARB-compliant OHV engine produces 4000 surge watts and 3500 rated watts
  • Includes two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle
Sale2
Pulsar PGD40ISCO Ultra Light Quiet 4000W Portable Gas Inverter Generator
  • 51 lbs [Extreme light weight]
  • 12oz gas tank, 4.5 hrs run time @ half load
  • 3200W Rated / 4000W Peak
  • RV ready, AC ready, Fridge ready
3
A-iPower SUA4000iED 4000 Watt Portable Inverter Generator Gas & Propane Powered, Small with Electric Start RV Ready for Camping, Tailgate, or Home emergency
  • The A-iPower SUA4000iED Dual Fuel inverter generator produces 4,000 starting watts with 3,500 running watts of power with gasoline and 3,500 starting watts with 3,200 running watts with propane (LPG)
  • A-iPower’s inverter technology allows for safe and clean power for sensitive electronics such as phones, televisions, laptops, and other electronics
  • 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 REMOTE/ELECTRIC START capability, this powerful 223cc OHV 4-Stroke engine provides an abundant power supply along with a low oil alert light and low oil automatic shutdown, helping keep your generator performing year after year
  • Complete with 2-NEMA 120V AC 20A Household, 1-NEMA 120V AC 30A L5-30R Locking, 2 x USB
Sale4
DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV Ready, 50 State Approved
  • 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
  • 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
  • Low Oil Shutoff – Protects your investment by automatically shutting the generator off when it senses that the oil is low
  • 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
  • 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
5
A-iPower SUA4000i 4000 Watt Portable Inverter Generator Gas Powered, Small with Quiet Operation RV Ready for Camping, Tailgate, or Home emergency
  • 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
  • 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
  • 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 2-NEMA 120V AC 20A Household, 1-NEMA 120V AC 30A L5-30R Locking, 2 x USB
6
WEN 56380i Super Quiet 3800-Watt RV-Ready Portable Inverter Generator with Fuel Shut-Off and Electric Start
  • 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
  • Extremely quiet operation minimizes noise;, EPA III and CARB Compliant
  • 212cc 4-stroke OHV engine produces 3800 surge watts and 3400 rated watts with a half-load runtime of up to 8.5 hours
  • Fuel shutoff maximizes the generator’s lifespan by using up the remaining fuel in the carburetor before shutting down
  • Produces clean power to prevent damage to sensitive electronics such as smart phones, tablets and laptops
7
Cummins 40KYFA6747 4000W Gas Generator
  • Outdoor Generators
  • package dimensions :33 x 20 x 23
  • Package Weight: 190 lbs
  • Product type :AUTO ACCESSORY
8
[Upgraded Version] ALLPOWERS S2000 Portable Power Station 2000W (Peak 4000W) MPPT Solar Generator 1500Wh Backup Battery with 4 AC Outlets for Outdoor Camping RV Emergency Off-Grid
  • 【Charge 11 Devices Simultaneously】: With 1500Wh battery pack, ALLPOWERS S2000 features 4* AC outlets (PURE SINE WAVE, 2000W, peak 4000W), 2* PD 100W USB-C ports, 2* USB-A QC3.0 fast charge port, 2* standard USB-A ports, 1* Car socket. With excellent Battery Management System (BMS), ALLPOWERS solar generator extends battery service life with protection of short-circuit / overvoltage / overload / overheating and ensures 1000+ life cycles.
  • 【Recharge from 0-100% in 1.6 Hours】: With MPPT advanced technology, ALLPOWERS solar generator can be recharged via XT60 solar input and only needs 3 hours! The portable power battery also can get fully charged by AC cable (no heavy bulky adapter) within 4 hours indoor. Dual charging by both, you can feed it up in less than 1.6 hours at 900W. You can also keep it full by your 12V/24V car cigarette lighter.
  • 【Power 99% of Electrical Appliances】: With a 1500Wh large capacity higher rated power of 2000W, it is ready to power 99% of indoor and outdoor appliances- electric vehicles, TV, fridge, coffee machine, air conditioner, Toaster, microwave oven, CPAP, drill, blender, Juicer, hair dryer for long time. The portable generator is only 32lbs (14.76*9.64*9.84 in), ideal companion for outdoor camping, road-trip, RV, and home backup.
  • 【Phone Remote Control】: ALLPOWERS portable power station supports wireless connection via bluetooth with ALLPOWERS APP. Power generator bluetooth technology provides a stable and advanced experience to remote control the solar generator almost anywhere even far away from 10 meters. You can also accurately grasp the power station remaining battery/ input/ output through the LCD display and smart phone.
  • 【What You Can Get】: ALLPOWERS offer you 2-Year product warranty with 24*7 friendly customer service. Package Included: 1* ALLPOWERS portable power station 1500Wh, 1* AC charger cable, 1* solar charge cable(MC-4 to XT60), 1* user guide, 1*warranty card.
Sale9
XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine Camping 4-Cycle Gas Powered Air Cooled OHV (EPA)
  • Ideal Generator - Great for campgrounds, construction sites, backyard, party, tailgates and power outages
  • Safe and Easy Operation - Feature a user-friendly, Recoil start, that's easier than starting a lawn mower
  • Fully Loaded Power Panel - Panel has a engine shutoff switch, volt meter and circuit breakers
  • Powerful Generator - The Powerful 4000W Engine is Air Cooled and can withstand use and abuse
  • Powerful AC and DC Output - Featuring (1) 120V AC Twist-Lock Receptacles and (2) 120V 20amp AC Receptacles, so you can charge and power multiple devices at once
10
RVMP 4000W RV Dual Fuel Installed Generator | Flexible and Reliable 4.0kW Dual Fuel Installed Generator for Recreational Vehicles | Dual Fuel Installed Generator for RVs | RVMP-AM-4L1-RV401
2 Reviews
RVMP 4000W RV Dual Fuel Installed Generator | Flexible and Reliable 4.0kW Dual Fuel Installed Generator for Recreational Vehicles | Dual Fuel Installed Generator for RVs | RVMP-AM-4L1-RV401
  • Emergency backup recoil start gives you further peace of mind when using the Flex Power 4000i – No other generator has this capability.
  • Dual Fuel - 2 types applicable in one unit: Gasoline or Propane. Hassle-free electric start system with remote start lets you start the generator from inside the coach.
  • Compared to the competition: The Flex Power 4000i is lighter, more fuel efficient, lower in harmonic distortion, quieter, has a higher base load, and has many more features.
  • Consistent output - Less distortion (3% compared to 17% in competitive models) allows you to power sensitive devices like laptops, TVs, and gaming counsels, without worrying about overload.
  • Offers stepped-up power-on-demand, eliminating issues of overload. The motor slows down when you reduce the load and will speed up when you resume a higher load. High performance, low cost, quiet operations, and fuel efficiency make this RV generator the best in its class by every measure.

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Last update on 2023-03-28 / Affiliate links / Images from Amazon Product Advertising API

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