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WENModel GN875iX

WEN 7,000W Gas Generator Review

The WEN GN875iX is an 8750-watt open frame inverter generator designed for RV and transfer-switch readiness, featuring a 420cc 4-stroke OHV engine, electric start, and a CO shutdown sensor for safety.

At a Glance

  • Running Watts
    7000W
  • Starting Watts
    8750W
  • Fuel Type
    Gasoline
  • Runtime (50%)
    6.7h
  • Weight
    136.7 lbs

Where to buy

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    Is this the right generator for you?

    Here's the quick tradeoff view — what this model does well, and where it may not fit.

    Pros

    • 420cc 4-stroke OHV engine produces 8750 surge watts and 7000 rated watts
    • Generate clean power to safely operate sensitive electronics such as smartphones, tablets, televisions and computers
    • 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
    • 4.2-gallon gas tank provides up to 6.7 hours of half-load run time
    • Includes electric start for easy ignitions, a wheel and handle kit, four 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V/240V transfer-switch-ready NEMA L14-30R twist lock receptacle, and one 120V RV-ready TT-30R receptacle

    Cons

    • Heavy weight at 136.7 pounds
    • No mention of RV specific outlets
    Best use cases
    Sensitive electronicsRV / campingHome backup

    Summary

    The WEN GN875iX is a gasoline generator built around a 7,000-watt running output with 8,750 starting watts. That combination targets both steady power delivery and the extra surge capacity needed when equipment first kicks on.

    Because it is an inverter generator, it pairs that output with inverter-style power production while still staying rooted in a straightforward gasoline fuel setup.

    Power & Runtime

    Running on gasoline, the GN875iX delivers 7,000 running watts and 8,750 starting watts, giving it headroom for startup surges while maintaining a strong continuous output once loads settle. Its 1.5 percent THD supports cleaner power delivery, which matters when you want power that stays controlled rather than rough or distorted.

    For runtime, it is rated at 6.7 hours at 50 percent load, and it carries a 4.2-gallon fuel tank. In practical terms, that pairs a defined mid-load endurance figure with a clear tank size, making it easier to plan refueling around a known workload level.

    Portability

    At 136.7 lbs, the GN875iX is a substantial unit, and its physical footprint of 26.8 x 25 x 23.2 inches gives a clear sense of the space it will occupy in storage or transport. Those dimensions help set expectations for where it can be placed, while the weight underscores that moving it is a deliberate task rather than a casual lift.

    Features

    Starting is handled through both recoil and electric systems, giving you a manual option alongside push-button convenience. Day-to-day monitoring is supported by a fuel gauge and built-in indicators, which keep basic operating status and fuel awareness in front of you while the generator is running.

    On the protection and readiness side, it is EPA compliant and includes a spark arrestor, and it is also RV ready for direct compatibility with RV power needs. Covered outlets add a practical layer of shielding at the connection points, while AVR (automatic voltage regulation) helps keep output steadier as loads change. A 2-year warranty rounds out the package with defined coverage.

    Recommended Audiences

    • RV owners needing RV-ready power
    • Owners of sensitive electronics seeking clean inverter power
    • Shoppers who prefer gasoline-powered generators
    • Homeowners needing whole-house or jobsite backup power
    • Noise-sensitive users or those in campground environments
    • Users who value push-button or remote start convenience
    Updated: Feb 24, 2026

    Score Breakdown

    3.7
    / 10
    Rank #58 of 66 in Inverter (5,000W+)
    Value (25%)
    Quality (25%)
    Practical (18%)
    Features (12%)
    Features (1.6 pts)
    • Inverter+1
    • Electric Start+0.6
    Percentile Rankings (within peer group)
    • Watts/$
    • Surge/$
    • Runtime/$
    • Warranty
    • THD (lower=better)
    • Build Quality
    • Noise (lower=better)
    • Portability
    • Outlet Variety
    • Feature Points

    What this generator can power

    At a Glance

    • Continuous:7,000W(recommended usable: 5,600W)
    • Surge:8,750W
    • Output:120/240V
    • Inverter:Yes (clean power for electronics)

    Big-item compatibility

    Refrigerator
    Yes
    Sump Pump (1/3 HP)
    Yes
    Well Pump (1 HP, 240V)
    Yes
    Furnace Blower
    Yes
    Central AC (3 Ton, 240V)
    Yes
    Window AC (10,000 BTU)
    Yes
    Electric Water Heater (240V)
    Yes
    Electric Range/Oven (240V)
    Yes
    Air Compressor (1 HP)
    Yes

    Example setups

    Essentials

    • Lights + Wi-Fi + Charging
    • Refrigerator
    • Furnace Blower
    • Sump Pump (1/3 HP)

    Est. running: 1,800W

    Peak surge (single motor): 2,000W

    Avoid starting multiple motor loads at the same time.

    Essentials + Comfort

    • Lights + Wi-Fi + Charging
    • Refrigerator
    • TV + Entertainment System
    • Microwave
    • Window AC (10,000 BTU)
    • Space Heater
    • Furnace Blower

    Est. running: 5,000W

    Peak surge (single motor): 2,000W

    Avoid starting multiple motor loads at the same time.

    Whole-Home (Limited)

    • Lights + Wi-Fi + Charging
    • Refrigerator
    • Furnace Blower
    • Sump Pump (1/3 HP)
    • Well Pump (1 HP, 240V)

    Est. running: 3,800W

    Peak surge (single motor): 6,000W

    Avoid starting multiple motor loads at the same time.

    These are estimates using typical wattage assumptions. Real appliances vary. Startup surges can be 2–6× the running wattage for motor-driven loads. 240V loads require a 120/240V generator and proper connection. Use a transfer switch or interlock kit; never backfeed a panel.

    WEN
    ReliabilityCAverage

    About WEN

    WEN is renowned for delivering affordable, reliable generators and power equipment, catering to various residential and industrial needs.

    Founded1951
    HQElgin, Illinois, USA
    Website (opens in a new tab)
    Support1-847-429-9263
    Support / Manuals (opens in a new tab)
    View all WEN generators

    Warranty

    Coverage: 2 years

    Power by fuel

    FuelRunningStartingRuntime @50%Runtime @25%
    Gasoline7000W8750W6.7h

    Full Specifications

    Power

    Running Watts7,000 watts
    Starting Watts8,750 watts
    Starting Watts (Gasoline)8,750 W
    Running Watts (Gasoline)7,000 W

    Engine

    EngineOHV 4-stroke
    Engine TypeOHV 4-stroke
    Engine Displacement420 cc
    Spark ArrestorYes
    Emissions ComplianceEPA

    Electrical

    Voltage (AC)120/240
    Voltage (DC)5
    Running Amps58.3 A
    Peak Amps72.9 A
    AC Frequency60 hz
    Current58.3 amps
    GFCI OutletsNo
    USB Outlets2x 5V USB port (USB-A)
    DC Outlets2x 5V USB port (USB-A)
    AC Outlets2x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) 1x 120/240V 30A (L14-30R)
    Total Harmonic Distortion (THD)1.5 %

    Dimensions

    Dimensions26.8 x 25 x 23.2 inches
    Weight136.7 lbs

    Other

    Automatic Low Oil ShutdownYes
    Emissions ComplianceEPA
    Automatic Voltage RegulationYes
    Automatic Voltage RegulatorYes
    Carbon Monoxide SensorYes
    Commercial Warranty2 years
    Covered OutletsYes
    Electric StartYes
    Fuel GaugeYes
    Fuel Tank Capacity4.2 gallons
    Included AccessoriesTool kit, 2 altitude kits, battery, and wheel kit
    IndicatorsYes
    InverterYes
    Parallel CapableNo
    Recoil StartYes
    RV ReadyYes
    Starter TypeRecoil, Electric
    Starting SystemRecoil, Electric
    UPC44,459,087,502
    Warranty2 years
    WheelsYes

    Core

    Fuel TypeGasoline

    Runtime

    Runtime @ 50%6.7 hours
    Runtime @ 50% Load (Gasoline)6.7 hours

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