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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.

  • Cummins Onan P5000iDF EFI
  • Honda EM5000SX
  • Model Onan P5000iDF EFI
    Model Onan P5000iDF EFI

    Cummins 3,900W Dual-Fuel Generator

    3900W
    Running
    52 dB
    Noise
    View details
  • Model EM5000SX
    Model EM5000SX

    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 P5000iDF EFIHonda EM5000SX
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterYesNo
Parallel capableYesNo
RV readyYesNo
Running watts
3900 W
Winner: Winner: 4500 W
Starting watts
Winner: Winner: 5000 W
Winner: Winner: 5000 W
Noise (lower limit)
Winner: Winner: 52 dB
63 dB
Weight
Winner: Winner: 108 lbs
226.4 lbs
Run time @50% load
Winner: Winner: 13 h
10.5 h
Run time @25% load
16.8 h
Not available—
Fuel tank
3.4 gal
6.2 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
25.1 x 18.1 x 21.2
41.1 x 27.8 x 28.3
Electrical
Voltage (AC)
120
120/240
Voltage (DC)
5
12
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
3 %
Not available—
Engine
Engine
224 cc OHV 4-stroke
Honda iGX390 OHV 4-stroke, cast iron sleeve
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Not available—
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
3900 W
4500 W
Starting watts
5000 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
13 h
10.5 h
Run time @25% load
16.8 h
Not available—
PropaneNot available—Not available—
Running watts
3500 W
Not available—
Starting watts
4500 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
20 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
false
Compliance
CARB, EPA, ANSI/PGMA G300-2023
EPA, ANSI/PGMA G300-2023
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Floating
Not available—
UPC
Not available—
786102007412
Core / High-priority specs
Running Watts (Gasoline)
3900
4500
Running Watts (Propane)
3500
Not available—
Starting Watts (Gasoline)
5000
5000
Starting Watts (Propane)
4500
Not available—
Runtime @ 50% Load (Gasoline)
13
10.5
Runtime @ 25% Load (Gasoline)
16.8
Not available—
Runtime @ 25% Load (Propane)
20
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
224 cc OHV 4-stroke
Not available—
Engine Displacement
224
389
Cylinder Sleeve
Not available—
cast iron sleeve
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
16.8
Not available—
Runtime @ 50% Load (Gasoline)
13
10.5
Safety & compliance
Overload Protection System
Low oil and overload protection; CO monitoring
Not available—
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Not available—
Yes
Starting Components
Not available—
Recoil, Electric, Remote
Included Accessories
Not available—
Battery and wheel kit
Warranty & identification
Commercial Warranty
3
3
Part Number
A075C500
EM5000SXK3AN
Additional specs
Summary
The Cummins Onan P5000iDF EFI is a 3900-watt dual-fuel inverter generator built for RV owners, campers, and homeowners who need reliable portable power without excessive noise. Its 5000-watt peak capacity handles startup demands of air conditioners, power tools, and multiple appliances simultaneously. The dual-fuel design means you can run gasoline when convenient and switch to propane for longer storage life or when gasoline is unavailable. At 52 dBA, this unit operates as quietly as normal conversation, making it suitable for campgrounds and residential neighborhoods where noise restrictions apply. The inverter technology produces clean power with only 3 percent THD, protecting laptops, smartphones, and sensitive electronics from voltage spikes that damage circuits.
The Honda EM5000SX is a 5000-watt 120/240V generator equipped with CO-MINDER™, providing 7,000 watts for 10 seconds to start larger equipment. It features a long run time of up to 10.5 hours, electric start, and Bluetooth® capability via the Honda My Generator app.
  • Most Powerful
    Honda EM5000SX
    4500W running
  • Quietest
    Cummins Onan P5000iDF EFI
    52 dB
  • Longest Runtime
    Cummins Onan P5000iDF EFI
    13h at 50% load
Where to buy
Prices can change. We update these automatically.
Cummins Onan P5000iDF EFI
Store links
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Honda EM5000SX
Store links
No links yet.
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