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WEN · Inverter generator · Model DF402iX

DF402iX

DF402iX RV-Ready 4000-Watt Dual Fuel Open Frame Inverter Generator with CO Shutdown Sensor

3,500W running4,000W startingDual fuel: gasoline + propaneEngine displacement not listed in the catalog description
View model at WEN Last listed $614.97
WEN DF402iX RV-Ready 4000-Watt Dual Fuel Open Frame Inverter Generator with CO Shutdown Sensor
Official product image · WEN Products

Infographic gallery

Output, fuel flexibility, runtime, and ownership.

01 · Output by fuel

4,000W maximum starting output

Gasoline3,500W / 4,000W
Propane3,200W / 3,600W

Bars compare WEN's published running and starting capacity for each fuel configuration.

02 · Fuel & runtime

Dual fuel: gasoline + propane

Model-specific energy system and manufacturer-published operating information.

Capacity

Our ultra-efficient 1.85-gallon tank provides over 7 hours of half-load run time.

Published runtime

Our ultra-efficient 1.85-gallon tank provides over 7 hours of half-load run time.

03 · Portability & price

84.9 lb (official listing weight)

Official listing weight

WEN price
$614.97
Availability
Currently sold out
Model
DF402iX
04 · Controls & protection

Starting

Recoil start

Voltage

120V

Fuel shutoff

Not listed

CO shutdown

WEN Watchdog

Official product gallery

Product views and WEN feature graphics.

This gallery uses the current official image set published for model DF402iX.

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Complete specifications

The fields that matter for comparison.

Output, engine, fuel, runtime, outlet, sound, weight, safety, price, and warranty details come from WEN's current official collection, model description, product imagery, and manual link.

Combustion generators are for outdoor use only. Keep the generator at least 20 feet from occupied buildings with exhaust directed away from doors, windows, and vents.

Product overview

Dual fuel 212cc engine generates 4000 surge watts and 3500 running watts on gasoline or 3600 surge watts and 3200 running watts on propane .

Electrical output by fuel

Gasoline output
3,500W running / 4,000W starting
Propane output
3,200W running / 3,600W starting
Voltage
120V
Outlet panel
Includes one 120V RV-ready TT-30R receptacle, two 120V NEMA 5-20R receptacles, two 5V USB ports, and a two-year warranty .
Power quality
Generate clean power to safely operate sensitive electronics such as phones, tablets, televisions and computers .
Parallel capability
Published as parallel capable; compatible kit sold separately

Engine, fuel & runtime

Engine or power system
Engine displacement not listed in the catalog description
Starting system
Recoil start
Fuel options
Dual fuel: gasoline + propane
Fuel capacity
Our ultra-efficient 1.85-gallon tank provides over 7 hours of half-load run time.
Published runtime
Our ultra-efficient 1.85-gallon tank provides over 7 hours of half-load run time.
Published sound information
WEN describes this model as quiet; see the official page for test conditions
Fuel shutoff
Not listed for this model

Portability, protection & ownership

Listing weight
84.9 lb (official listing weight)
Carbon-monoxide shutdown
Yes — WEN Watchdog or published CO sensor
Low-oil shutdown
Yes — published by WEN
Warranty
Includes one 120V RV-ready TT-30R receptacle, two 120V NEMA 5-20R receptacles, two 5V USB ports, and a two-year warranty .
Price and availability
Last listed WEN price: $614.97
Official model
DF402iX

Official feature details

Published WEN feature

Dual fuel 212cc engine generates 4000 surge watts and 3500 running watts on gasoline or 3600 surge watts and 3200 running watts on propane

Output and operation

Generate clean power to safely operate sensitive electronics such as phones, tablets, televisions and computers

Controls and convenience

Parallel-ready panel allows you to connect any two WEN inverter generators for increased wattage output

Power-panel capability

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

Protection and ownership

Includes one 120V RV-ready TT-30R receptacle, two 120V NEMA 5-20R receptacles, two 5V USB ports, and a two-year warranty

Best-fit uses

  • RV and camping
  • Refrigerators and household essentials
  • Jobsite tools
  • Storm preparation

Standout features

  • 4,000W starting / 3,500W running
  • Dual fuel: gasoline + propane
  • Recoil start
  • WEN Watchdog carbon-monoxide shutdown

Match it to the equipment you'll actually run.

Use the independent wattage calculator before buying.

Check my power plan
Sources: WEN DF402iXAll WEN generatorsOfficial manualVerified September 15, 2026

Ownership resources

Accessories, manuals, and documents.

Start with the exact WEN DF402iX model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.

Compatible accessories

Match by model and connection.

Verify exact fit

Generator power cord or inlet connection

Use a correctly rated cord or professionally selected inlet connection for the intended load.

Match voltage, amperage, blade pattern, and wire rating to TT-30R. Home connections require approved transfer equipment and qualified installation.
View official accessory options
Verify exact fit

Parallel kit

This model’s published information references parallel operation. Use the manufacturer’s matching kit and pairing rules.

Confirm that the kit explicitly names DF402iX or its exact generator family before connecting another unit.
View official accessory options
Verify exact fit

Maintenance kit and service parts

Model-matched filters, spark plugs, batteries, oil supplies, and service parts support scheduled maintenance.

Match the complete DF402iX model or item number and follow the maintenance table in its manual.
View official accessory options
Verify exact fit

Storage cover or approved running shelter

A fitted storage cover protects a cooled, stored generator. A running shelter must be designed for generator operation.

Never run a fuel-burning generator indoors or inside a storage cover. Follow the manual’s clearance and ventilation requirements.
View official accessory options

Manuals & PDFs

Official product materials.

Owner’s or operator’s manualPDFOperating, safety, maintenance, and troubleshooting instructions for DF402iX.Official product pageProduct pageCurrent manufacturer overview, notices, specifications, downloads, and support links.

Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.