Best 4000 Watt Generator 2022

This list features the best 4000 Watt Generator that is found on the market today. We let the users decide which 4000 Watt Generator should make the list, by scanning all the reviews available and bringing you the best selling, and best-reviewed products. We know that shopping online for items can be difficult because you don’t get to experience it first hand. That’s why our lists are built around the ratings and reviews from folks who have!

Check Out Our List of 4000 Watt Generator Favorites Below!

Bestseller No. 1
WEN GN400i RV-Ready 4000-Watt Open Frame Inverter Generator, CARB...
  • 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
Bestseller No. 2
WEN DF400i Super Quiet 4000-Watt Dual Fuel RV-Ready Electric Start...
  • Dual fuel design runs on both gasoline (4000 surge watts, 3200 rated watts) and propane (3200 surge watts, 2900 rated watts)
  • Auto Fuel Selection Technology automatically switches from propane to gasoline for longer run times
  • EPA III and CARB compliant 212cc engine provides extremely quiet operation (58 dBA at quarter load, 22 feet)
  • Fuel shutoff maximizes the generator’s lifespan by using up the remaining fuel in the carburetor before shutting down
Bestseller No. 3
DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV...
  • 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...
  • Powerful Engine – The DuroMax 208cc OHV engine is a workhorse that provides plenty of power to handle multiple jobs, from powering high...
  • 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...
SaleBestseller No. 4
Champion Power Equipment 100302 4000-Watt RV Ready Open Frame...
  • Advanced Open Frame Inverter Design: 50% quieter and 20% lighter than a traditional Champion 3500-watt generator, plus our Economy Mode...
  • Quiet Technology and Extended Run Time: 64 dBA is great for RVs, tailgating, your next project or home backup, with 4000 starting watts and...
  • Clean electricity for sensitive electronics: RV Ready with a 120V 30A RV, plus two 120V 20A household outlets with clean power (less than 3%...
  • Parallel Ready: Increase your power output by connecting up to two 2800-watt or higher inverter or digital hybrid with the optional Parallel...
Bestseller No. 5
XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine...
151 Customer Reviews
XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine...
  • 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
SaleBestseller No. 6
A-iPower SUA4000iED 4000 Watt Portable Inverter Generator Gas &...
  • 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...
  • A-iPower’s inverter technology allows for safe and clean power for sensitive electronics such as phones, televisions, laptops, and other...
  • 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...
Bestseller No. 7
Westinghouse WGen3600v Portable Generator, 4650 Peak Watts & 3600...
  • 3600 Running Watts and 4650 Peak Watts; Recoil Start; 4 Gallon Fuel Tank With Fuel Gauge; Up to 14 Hours of Run Time Per Tank
  • Features One 5–20R 120V Household Duplex Receptacle, One RV-Ready TT-30R 30 Amp Receptacle, and One L5-30R 30 Amp Receptacle; All Outlets...
  • Plug-and-Play: Comes With Oil, an Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly...
  • Powered by a 212cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil Shutdown
Bestseller No. 8
Champion Power Equipment 200986 4500-Watt Portable Inverter Generator,...
  • 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...
  • PARALLEL READY: The optional parallel kit (sold separately) enables this inverter to connect with another 2800-watt or higher Champion...
  • INTELLIGAUGE: Monitor voltage, frequency and operating hours with ease, plus the EZ Start Dial simplifies startup while Economy Mode...
  • 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...

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We know shopping online can be a hassle. It’s so easy to get overwhelmed by reviews, and misleading product descriptions. We truly do our best so that our users can have the best shopping experience possible. We hope our lists help make your buying decision easier!

What To Know When Choosing A 4000 Watt Generator

  • What is my specific application? Not everything is created equal, so you’ll want to make sure that the 4000 Watt Generator you choose has the features and specifications you need.
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  • What brand should I choose? That’s the best part about our lists. We offer the best selling items from the most well-known and best brands on the market that offer a 4000 Watt Generator. Our goal is to give you the easiest experience in buying the brands you know and love.