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Compare Generators Side-by-Side

Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • DEWALT DXGNR4000
  • Genmax GM3300i
  • Model DXGNR4000
    Model DXGNR4000

    DEWALT 4,000W Gas Generator

    4000W
    Running
    0 dB
    Noise
    View details
  • Model GM3300i
    Model GM3300i

    Genmax 3,000W Gas Generator

    3000W
    Running
    62 dB
    Noise
    View details
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationDEWALT DXGNR4000Genmax GM3300i
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoYes
Parallel capableNoYes
RV readyNoYes
Running watts
Winner: Winner: 4000 W
3000 W
Starting watts
Winner: Winner: 5000 W
3300 W
Noise (lower limit)
0 dB
Winner: Winner: 62 dB
Weight
119 lbs
Winner: Winner: 47.4 lbs
Run time @50% load
Winner: Winner: 10 h
4.5 h
Run time @25% load
Not available
6 h
Fuel tank
3.4 gal
1 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
23.7 x 23 x 21.4
18.9 x 11.4 x 17.3
Electrical
Voltage (AC)
120
120
Voltage (DC)
Not available
5
GFCI outletsYesNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
223 cc OHV 4-stroke
145 cc Dinking OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil
Warranty
Warranty
3 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
4000 W
3000 W
Starting watts
5000 W
3300 W
Running amps (120V)
Not available
Not available
Running amps (240V)
Not available
Not available
Peak amps (120V)
Not available
Not available
Peak amps (240V)
Not available
Not available
Run time @50% load
10 h
4.5 h
Run time @25% load
Not available
6 h
Other
Data center
Not available
Not available
Indicators
false
true
Compliance
CARB
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
Floating
UPC
696471075809
768494056087
Core / High-priority specs
Running Watts (Gasoline)
4000
3000
Starting Watts (Gasoline)
5000
3300
Runtime @ 50% Load (Gasoline)
10
4.5
Runtime @ 25% Load (Gasoline)
Not available
6
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R)
1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Dinking OHV 4-stroke
Engine Displacement
223
145
Engine Oil Type
Not available
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
6
Runtime @ 50% Load (Gasoline)
10
4.5
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, funnel, and wheel kit
Funnel and tool kit
Warranty & identification
Part Number
PMC164000
GE-3300A
Additional specs
Summary
The DEWALT DXGNR4000 is a 4000-watt gasoline generator built around a 223cc OHV 4-stroke engine. This wattage class sits at the threshold between household backup and light job site work. At 4000 running watts, it can power a refrigerator, sump pump, and several lights simultaneously during an outage, or run circular saws and air compressors on a construction site, but not both at full capacity. The 5000-watt peak handles motor startup surges, which matters when appliances draw 20 to 30 percent more current at the moment they turn on. The DXGNR4000 targets users who need portability without sacrificing power. A 3.4-gallon fuel tank delivers 10 hours of runtime at half load, meaning a full tank gets you through a night of backup power or a full workday on site. The recoil start requires physical effort to fire up, but it eliminates the complexity and cost of electric ignition. DEWALT backs this unit with a three-year warranty, signaling confidence in the engine and electrical components.
The Genmax GM3300i is a 3000-watt gasoline inverter generator built for portability and clean power. At 47.4 lbs, it moves easily between campsites, job sites, and homes. The 3300-watt peak output handles startup surges on power tools and appliances, while the inverter technology protects laptops and phones from voltage spikes.
  • Most Powerful
    DEWALT DXGNR4000
    4000W running
  • Quietest
    Genmax GM3300i
    62 dB
  • Longest Runtime
    DEWALT DXGNR4000
    10h at 50% load
Where to buy
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DEWALT DXGNR4000
Store links
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Genmax GM3300i
Store links
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