GENMAX · Inverter generator

GM4000Xi

Gasoline inverter generator with 4,000 peak watts

3,200W running4,000W peak223cc OHVGasoline

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GENMAX GM4000Xi 4000 Watt Portable Open Frame Inverter Generator — Official product image: GENMAX

Visual spec gallery

The deciding numbers, made scannable.

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01 · Maximum output

4,000W peak

Continuous output3,200W running

Size around running load first, then confirm the peak rating covers the largest startup surge.

02 · Fuel output

Gasoline

3,200W run · 4,000W peak

Alternative-fuel ratings are shown only when GENMAX publishes a fuel-specific figure.

03 · Portability

See manufacturer page

Unit weight

See manufacturer page

Dimensions

Sound rating

66 dBA

04 · Controls & ownership

Starting

Recoil

CO shutoff

Not listed

Parallel

Not listed

Warranty

3 Year

Official product gallery

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GENMAX imagery can include the enclosure, control panel, outlets, dimensions, feature callouts, and included accessories.

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Complete specifications

Manufacturer data, organized for comparison.

Power ratings, features, imagery, manuals, and seller links come from GENMAX’s current U.S. model page. A missing figure is labeled instead of estimated.

Never run a portable generator indoors. Keep it at least 20 feet from occupied buildings with exhaust directed away from doors, windows, and vents. Use a qualified electrician and approved transfer equipment for home connections.

Model overview

3,200 running watts and 4,000 peak watts for rv power and home essentials. Confirm exact configuration and included accessories with the seller before purchase.

Fuel-specific output

Gasoline: 3,200W running / 4,000W peak

Operation & ownership

Engine: 223cc OHV
Voltage / frequency: 120V / 60 Hz
Runtime: up to 11.7 hours of runtime at 50% load on a single tank
Fuel capacity: See manufacturer page
Sound: 66 dBA
Starting methods: Recoil
Unit size / weight: See manufacturer page / See manufacturer page
Warranty: 3 Year

Connections

Manufacturer feature details

【Powerful & Clean Inverter Power】Powered by a reliable 223cc OHV engine, this generator delivers 4000W peak and 3200W running watts. Its advanced inverter technology produces clean, stable electricity with less than 5% THD, safe for sensitive electronics like laptops, phones, and tools.

【RV Ready with 30A Outlet】Equipped with a 30A RV outlet, it connects directly to your recreational vehicle to power essentials like air conditioners. An additional 120V 20A household outlet ，plus USB-C & USB-A Ports provides versatile power for home backup or job sites.

【Ultra-Quiet & High-Efficient Operation】Intelligent Eco-Mode ensures efficiency, delivering up to 11.7 hours of runtime at 50% load on a single tank. Remarkably quiet, it operates at just 66 dB(A) measured from 7m at 25% load.

【Built-in Safety & Protection Features】For peace of mind, it includes automatic low oil shutdown and a 20A circuit breaker to protect both the generator and your connected equipment. Clear indicator lights provide instant status updates.

【Practical Design with Long-Term Support】Weighs only 61.7 lbs for manageable portability.Backed by a 3-Year Limited Warranty and ongoing technical support.

Show the full manufacturer specification table

Wattage: 3200 watts
Engine Type: Internal Combustion Engine
Fuel Type: Gasoline
Ignition System Type: recoil start
Power Source: Fuel Powered
Engine Displacement: 223 Cubic Centimeters
Recommended Uses For Product: Camping
Runtime: 11 hours
Output Wattage: 4000
Total Power Outlets: 4
Additional Features: Portable
Frequency: 60 Hz
Starting Wattage: 4000 Watts
Running Wattage: 4000 Watts
Brand Name: GENMAX
Manufacturer: GENMAX
Included Components: Dual-Purpose Screwdriver
Unit Count: 1.0 Count
Model Name: GM4000Xi
Warranty Description: 3 Year
Model Number: GM4000Xi
ASIN: B0G422NHDB
UPC: 784482491340

Current seller links

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These destinations are supplied on the official model page. Prices and availability can change.

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Best-fit uses

RV power
Home essentials
Tailgating
Jobsite tools

Standout features

3,200 running / 4,000 peak watts
Gasoline
Recoil start

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Official sources:Model page All GENMAX generatorsVerified September 15, 2026