If you’re looking for the 4000 watt gas generator you’re in the right place. We spent a lot of time reviewing best 4000 watt gas generator to come up with the Ten that we think stand apart from the pack in style, functionality, and value. In this guide, we have reviewed all the products and generated the best options available today for you.

We analyzed and compared 43 4000 watt gas generator sold for nearly 43 hours, and considered the opinions of 529 consumers. Following our last update, our favorite model is the Poweka New Recoil Starter for Champion Power Equipment 3000 3500 4000 Watts Gas Generator. However, if you don’t want to spend extra then we have another vast option for you is Durostar DS4000S Portable Generator, Yellow/Black.

Below is a review of some of the best 4000 watt gas generator together with their extra features and functions. Wanna find the Top 4000 watt gas generator? Read the below list right the way.

Best 4000 watt gas generator

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Product Title
Score

XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine Camping 4-Cycle Gas Powered Air Cooled OHV (EPA)
9.7

DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV Ready, 50 State Approved
9.6

BILT HARD Quiet Inverter Generator 4000 Watt, with Electric Start & Fuel Shut Off, Gas Powered Outdoor RV Ready Generator for Camping, EPA & CARB Approved
9.2

Durostar DS4000S Portable Generator, Yellow/Black
8.6

Westinghouse Outdoor Power Equipment WGen3600v Portable Generator 3600 Rated and 4650 Peak Watts, RV Ready, Gas Powered, CARB Compliant
8.4

Carburetor for Champion Power Equipment 3500 4000 Watts Gas Generator Engine Carb with Fuel Tank Shut off Valve Spark Plug kit
8.1

Cummins 40KYFA6747 4000W Gas Generator
7.6

POWER PRODUCTS Generator Gas Fuel Tank W/Filter Cap Gauge Petcock for Honda EC2500 for Predator 3200/4000W 3500/4375W for DuroMax XP4400E XP4000S MX4500 MX4500E for Champion Wen 4750W
7.4

Poweka New Recoil Starter for Champion Power Equipment 3000 3500 4000 Watts Gas Generator
7.2

Champion Power Equipment 100573 4000-Watt DH Series Open Frame Inverter, Wireless Remote Start, 4000-Watt + Gas + Remote Start
6.3

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Product Title

XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine Camping 4-Cycle Gas Powered Air Cooled OHV (EPA)

9.7

DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV Ready, 50 State Approved

9.6

BILT HARD Quiet Inverter Generator 4000 Watt, with Electric Start & Fuel Shut Off, Gas Powered Outdoor RV Ready Generator for Camping, EPA & CARB Approved

9.2

Durostar DS4000S Portable Generator, Yellow/Black

8.6

Westinghouse Outdoor Power Equipment WGen3600v Portable Generator 3600 Rated and 4650 Peak Watts, RV Ready, Gas Powered, CARB Compliant

8.4

Carburetor for Champion Power Equipment 3500 4000 Watts Gas Generator Engine Carb with Fuel Tank Shut off Valve Spark Plug kit

8.1

Cummins 40KYFA6747 4000W Gas Generator

7.6

POWER PRODUCTS Generator Gas Fuel Tank W/Filter Cap Gauge Petcock for Honda EC2500 for Predator 3200/4000W 3500/4375W for DuroMax XP4400E XP4000S MX4500 MX4500E for Champion Wen 4750W

7.4

Poweka New Recoil Starter for Champion Power Equipment 3000 3500 4000 Watts Gas Generator

7.2

Champion Power Equipment 100573 4000-Watt DH Series Open Frame Inverter, Wireless Remote Start, 4000-Watt + Gas + Remote Start

6.3

XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine Camping 4-Cycle Gas Powered Air Cooled OHV (EPA)


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XtremepowerUS 4000-Watt Gasoline Generator Emergency Lifan Engine Camping 4-Cycle Gas Powered Air Cooled OHV (EPA)

$329.95  in stock
1 new from $329.95
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as of August 10, 2022 2:43 am

Features

  • 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

DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV Ready, 50 State Approved


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DuroMax XP4000S Portable Generator-4000 Watt Gas Powered Camping & RV Ready, 50 State Approved

$399.99  in stock
3 new from $399.00
Free shipping
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as of August 10, 2022 2:43 am

Features

  • 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

BILT HARD Quiet Inverter Generator 4000 Watt, with Electric Start & Fuel Shut Off, Gas Powered Outdoor RV Ready Generator for Camping, EPA & CARB Approved


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BILT HARD Quiet Inverter Generator 4000 Watt, with Electric Start & Fuel Shut Off, Gas Powered Outdoor RV Ready Generator for Camping, EPA & CARB Approved

$799.99
$649.99  in stock
1 new from $649.99
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as of August 10, 2022 2:43 am

Features

  • Super Quiet: power output 68 dB makes BILT HARD inverter generator became great choice for outdoor RV camping or home emergency use, strong enough to run a wide variety of appliances, equipped with Integrated smooth-rolling casters for portability.
  • Inverter Technology: Using advanced inverter technology this super quiet generator produces a pure sine wave power curve that is safe to use with sensitive electronics. Furthermore, 120V rated output voltage can ensures power that is as reliable as the power you get from your outlets at home.
  • Product Parameter: Electric Recoil Start - 212cc 4-stroke air-cooled OHV gas engine - 3600 rated watts and 4500 peak watts - Two 120V 20 Amp outlets & 12V 8A D.C output & 12V DC cigar lighter - Two USB outlets - Electronic overload protection -Auto voltage adjustor - Oil alert system.
  • Exceptionally efficient: The efficient design of BILT HARD generator gives you more power with lower fuel consumption. The 2.2 gallon fuel tank allows 14 hours of run time at 25% load. 30 Amp RV outlet for easy power to your RV).
  • Qualified - with EPA and CAARB compliant, each gas engine will be Oil Tested before packaging, so it may touch a little oily, but 100% new condition.

Durostar DS4000S Portable Generator, Yellow/Black


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Durostar DS4000S Portable Generator, Yellow/Black

$435.20  in stock
2 new from $435.20
Free shipping
Buy Now
Amazon.com
as of August 10, 2022 2:43 am

Features

  • 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 DuroStar 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 DuroStar 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

Westinghouse Outdoor Power Equipment WGen3600v Portable Generator 3600 Rated and 4650 Peak Watts, RV Ready, Gas Powered, CARB Compliant


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Westinghouse Outdoor Power Equipment WGen3600v Portable Generator 3600 Rated and 4650 Peak Watts, RV Ready, Gas Powered, CARB Compliant

$379.00
$349.00  in stock
1 new from $349.00
Free shipping
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as of August 10, 2022 2:43 am

Features

  • 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 Have Rubber Covers for Added Safety
  • 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 Required)
  • Powered by a 212cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil Shutdown
  • All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA and CARB Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

Carburetor for Champion Power Equipment 3500 4000 Watts Gas Generator Engine Carb with Fuel Tank Shut off Valve Spark Plug kit


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Carburetor for Champion Power Equipment 3500 4000 Watts Gas Generator Engine Carb with Fuel Tank Shut off Valve Spark Plug kit

$16.50  in stock
1 new from $16.50
Free shipping
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as of August 10, 2022 2:43 am

Features

  • Quality Aftermarket Replacement Carburetor & 28-1783-V Fuel Tank Shut off Valve Spark Plug kit
  • 46561 Carburetor for for Champion Power Equipment(CPE) Branded 3000/3500/4000 Watts Gasoline Generator Engine Carb
  • Carburetor Fits Gasoline Generator Models:46558, 46561, 46594, 46596, 46533, 46534, 46535, 46539, 46540, 46551, 46553, 46554 & 46555, 40026, 40008, 40012, 46514, 46515, 46516, 46517 & 45633.
  • 28-1783-V Generator Fuel Tank Shut off Valve for M10X1.25 tank port threds, Fuel line 1/4, hose barb Dimensions 1-1/2 X 1-3/16 X 2-7/8
  • Package includes: 1 x Carburetor,1 x Choke Lever,1 x Fuel Line, 3 x Gaskets, 1 x Generator Fuel Tank Shut off Valve, 1 x Spark Plug , 1 x Fuel Filters

Cummins 40KYFA6747 4000W Gas Generator


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Cummins 40KYFA6747 4000W Gas Generator

$5,547.08  in stock
2 new from $5,269.73
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as of August 10, 2022 2:43 am

Features

  • Outdoor Generators
  • package dimensions :33 x 20 x 23
  • Package Weight: 190 lbs
  • Product type :AUTO ACCESSORY

POWER PRODUCTS Generator Gas Fuel Tank W/Filter Cap Gauge Petcock for Honda EC2500 for Predator 3200/4000W 3500/4375W for DuroMax XP4400E XP4000S MX4500 MX4500E for Champion Wen 4750W


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POWER PRODUCTS Generator Gas Fuel Tank W/Filter Cap Gauge Petcock for Honda EC2500 for Predator 3200/4000W 3500/4375W for DuroMax XP4400E XP4000S MX4500 MX4500E for Champion Wen 4750W

$68.99  in stock
1 new from $68.99
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as of August 10, 2022 2:43 am

Features

  • For Predator 3200 4000 Watt 212CC 6.5HP Generator 68729 63089 63079
  • For Smarter Tools 3500W Portable Gasoline Generator ST-GP3500
  • For Harbor Freight Predator 3500W 4375W 6.5HP Generator 63962 63960
  • For ETQ TG32P12 3250 4000 Watt 7HP 207CC 4 Cycle Gas Powered Generator
  • For Nikota Neiko 3500 Watts Portable 6.5HP Gas Generator 86041

Poweka New Recoil Starter for Champion Power Equipment 3000 3500 4000 Watts Gas Generator


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Poweka New Recoil Starter for Champion Power Equipment 3000 3500 4000 Watts Gas Generator

$12.62  in stock
1 new from $12.62
Free shipping
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as of August 10, 2022 2:43 am

Features

  • New high quality replacement recoil starter
  • Fits for Champion Power Equipment Branded 196CC 6.5HP 3500/4000 Watts Gasoline Generator
  • Length center to center hole is 160mm
  • Package including 1 recoil starter

Champion Power Equipment 100573 4000-Watt DH Series Open Frame Inverter, Wireless Remote Start, 4000-Watt + Gas + Remote Start


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Champion Power Equipment 100573 4000-Watt DH Series Open Frame Inverter, Wireless Remote Start, 4000-Watt + Gas + Remote Start

$1,352.14
$1,008.38  in stock
2 new from $1,008.38
Free shipping
Buy Now
Amazon.com
as of August 10, 2022 2:43 am

Features

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

This guide identifies some of the best 4000 watt gas generator currently on the market and also includes an in-depth buying guide to help you make the right decision. If you didn’t find your desired one check out the Cummins 40KYFA6747 4000W Gas Generator is also the most sold item in the market. If you feel that the information provided here is misleading, incorrect, or is removed from actual facts, then please do not hesitate to get in touch with us. We will always be there for you.