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

  • Cummins Onan P9500DF EFI
  • Honda EB5000X
  • Model Onan P9500DF EFI
    Model Onan P9500DF EFI

    Cummins 7,500W Dual-Fuel Generator

    7500W
    Running
    74 dB
    Noise
    View details
  • Model EB5000X
    Model EB5000X

    Honda 4,500W Gas Generator

    4500W
    Running
    63 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
SpecificationCummins Onan P9500DF EFIHonda EB5000X
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 7500 W
4500 W
Starting watts
Winner: Winner: 9500 W
5000 W
Noise (lower limit)
74 dB
Winner: Winner: 63 dB
Weight
211.6 lbs
Winner: Winner: 210.8 lbs
Run time @50% load
9.6 h
Winner: Winner: 10.5 h
Run time @25% load
14.4 h
10.5 h
Fuel tank
6.6 gal
6.2 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
27.3 x 20.6 x 22.6
41.1 x 27.8 x 30.4
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
5
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
23 %
10 %
Engine
Engine
420 cc OHV 4-stroke
Honda iGX390 OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
7500 W
4500 W
Starting watts
9500 W
5000 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
9.6 h
10.5 h
Run time @25% load
14.4 h
Not available
PropaneNot availableNot available
Running watts
6750 W
Not available
Starting watts
8550 W
Not available
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
Not available
Not available
Run time @25% load
10.8 h
Not available
Other
Data center
Not available
Not available
Indicators
false
false
Compliance
CARB, EPA, ANSI/PGMA G300-2023
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
true
UPC
Not available
786102007368
Core / High-priority specs
Running Watts (Gasoline)
7500
4500
Running Watts (Propane)
6750
Not available
Starting Watts (Gasoline)
9500
5000
Starting Watts (Propane)
8550
Not available
Runtime @ 50% Load (Gasoline)
9.6
10.5
Runtime @ 25% Load (Gasoline)
14.4
Not available
Runtime @ 25% Load (Propane)
10.8
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke, cast iron sleeve
Engine Displacement
420
389
Cylinder Sleeve
Not available
Cast iron sleeve
Engine Oil Type
SAE10W30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
14.4
Not available
Runtime @ 50% Load (Gasoline)
9.6
10.5
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Yes
Not available
Included Accessories
Oil, funnel, tool kit, key fob, propane hose, battery, and wheel kit
Wheel kit
Warranty & identification
Commercial Warranty
3
Not available
Part Number
A075C509
EB5000XK3AN
Additional specs
Summary
The Cummins Onan P9500DF EFI is a 7,500-watt dual-fuel generator built for users who need sustained power across multiple load types. On gasoline, it delivers 7,500 running watts and 9,500 peak watts. On propane, it drops to 6,750 running watts and 8,550 peak watts, which means propane users sacrifice roughly 10 percent of output but gain extended storage life and cleaner emissions. The electronic fuel injection engine handles high-altitude operation up to 13,123 feet without modification, making it viable for mountain jobsites, remote cabins, and RV camps where carbureted engines would struggle. At 211.6 pounds with an included wheel kit, this generator demands stationary placement or two-person handling, but the 6.6-gallon fuel tank stretches runtime to 14.4 hours at 25 percent load on gasoline. This is a workhorse for contractors, emergency backup, and off-grid scenarios where fuel flexibility and durability matter more than portability.
The Honda EB5000X is a 4,500-watt gasoline generator built for job sites and extended outages. Its 389cc Honda engine delivers 5,000 peak watts with a 6.2-gallon tank that runs 10.5 hours at 50% load. The recoil-start design and GFCI outlets handle most household and light commercial loads without inverter complexity.
  • Most Powerful
    Cummins Onan P9500DF EFI
    7500W running
  • Quietest
    Honda EB5000X
    63 dB
  • Longest Runtime
    Honda EB5000X
    10.5h at 50% load
Where to buy
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Cummins Onan P9500DF EFI
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Honda EB5000X
Store links
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