Top 10 Best wen df400i 4000w in 2026

Last Updated - 6/20/2026

🏆Best Choice

WEN

WEN RV-Ready 4000-Watt Open Frame Inverter Generator (GN400iM)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Generates clean power to safely operate sensitive electronics such as phones, tablets, TVs, and computers
•Parallel-ready panel allows you to connect any 2 WEN inverter generators for increased wattage output
•212cc 4-stroke engine produces 4,000 surge watts and 3,500 rated watts
•Lightweight body weighs 30% less than a standard 4000-watt generator
•Includes two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle, and a two-year warranty

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$374.99

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WEN

WEN GN400iX RV-Ready 4000-Watt Open Frame Inverter Generator with CO Shutdown Sensor, Black/Orange

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•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
•The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected
•Includes two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle, and a two-year warranty

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$498.00

$524.99

-5%

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WEN

WEN 56400iX 4000-Watt Inverter Generator with Fuel Shut-Off and CO Shutdown Sensor, Black

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Generates up to 4000 surge watts and 3200 rated watts
•EPA III and CARB compliant 212cc engine provides extremely quiet operation (57 dBA at quarter load, 22 feet)
•The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected
•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

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$999.18

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TC-Motor

TC-Motor Magnetic Dipstick With O-ring For WEN 56125i 56200i 56202i 56203i 56225i 56235i 56310i 56380i GN400i DF400i For Yamaha EF2000iS EF1000iS Generac IQ2000 Powerhorse 42411 Predator 2000 (Silver)

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Brand New Aftermarket CNC Machined Aluminum Magnetic Dipstick With O-ring,
•It helps to extend the lifespan of your inverter generator by catching any unwanted metal shards floating inside the oil tank.
•For WEN 56125i 1250-Watt Inverter Generator For WEN 56200i 2000-Watt Inverter Generator For WEN 56202i & 56203i Super Quiet 2000-Watt Gas-Powered Inverter Generator with Fuel Shut Off CARB Compliant For WEN 56225i 2250-Watt Inverter Generator For WEN 56235i Super Quiet 2350-Watt Inverter Generator with Fuel Shut Off For WEN 56310i & 56310i-RV 3100-Watt Inverter Generator For WEN 56380i 3800-Watt Inverter Generator For WEN GN400i RV-Ready 4000-Watt Open Frame Inverter Generator For WEN DF400i Sup
•For Yamaha EF2000iS, EF1000iS For Generac IQ2000 For Powerhorse 42411 For Predator 2000
•Its universal M18 x 2.5mm design also works with the majority of inverter generators on the market

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$7.96

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