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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 P5000iDF EFI
  • Westinghouse iGen8200TFc
  • Model Onan P5000iDF EFI
    Model Onan P5000iDF EFI

    Cummins 3,900W Dual-Fuel Generator

    3900W
    Running
    52 dB
    Noise
    View details
  • Model iGen8200TFc
    Model iGen8200TFc

    Westinghouse 6,600W Tri-Fuel Generator

    6600W
    Running
    60 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 EFIWestinghouse iGen8200TFc
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Tri-Fuel
InverterYesYes
Parallel capableYesYes
RV readyYesYes
Running watts
3900 W
Winner: Winner: 6600 W
Starting watts
5000 W
Winner: Winner: 8200 W
Noise (lower limit)
Winner: Winner: 52 dB
60 dB
Weight
Winner: Winner: 108 lbs
134.5 lbs
Run time @50% load
Winner: Winner: 13 h
8.5 h
Run time @25% load
16.8 h
17 h
Fuel tank
3.4 gal
3.96 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
25.1 x 18.1 x 21.2
27 x 20.9 x 21.7
Electrical
Voltage (AC)
120
120/240V 60 Hz
Voltage (DC)
5
5
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
3 %
3 %
Engine
Engine
224 cc OHV 4-stroke
298 cc OHV 4-stroke, cast iron sleeve.
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil, Electric, Remote
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
3900 W
6600 W
Starting watts
5000 W
8200 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
Not available
Run time @25% load
16.8 h
17 h
PropaneNot availableNot available
Running watts
3500 W
5940 W
Starting watts
4500 W
7380 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
Not available
Not available
Run time @25% load
20 h
9.8 h
Natural gasNot availableNot available
Running watts
Not available
5280 W
Starting watts
Not available
6560 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
Not available
Not available
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA, ANSI/PGMA G300-2023
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
true
UPC
Not available
850060639784
Core / High-priority specs
Running Watts (Gasoline)
3900
6600
Running Watts (Propane)
3500
5940
Running Watts (Natural Gas)
Not available
5280
Starting Watts (Gasoline)
5000
8200
Starting Watts (Propane)
4500
7380
Starting Watts (Natural Gas)
Not available
6560
Runtime @ 50% Load (Gasoline)
13
Not available
Runtime @ 25% Load (Gasoline)
16.8
17
Runtime @ 25% Load (Propane)
20
9.8
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (TT-30R); 1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
224 cc OHV 4-stroke
OHV 4-stroke
Engine Displacement
224
298
Cylinder Sleeve
Not available
Cast iron
Alternator Winding Material
Not available
Copper windings
Engine Oil Type
Not available
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
16.8
17
Runtime @ 50% Load (Gasoline)
13
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection; CO monitoring
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Not available
Oil, funnel, tool kit, key fob, battery charger, propane hose, and battery
Warranty & identification
Commercial Warranty
3
Not available
Part Number
A075C500
Not available
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 Westinghouse iGen8200TFc is a 6,600-watt tri-fuel inverter generator built for homeowners and RV users who need flexible fuel sourcing and clean power for sensitive electronics. Its 8,200-watt starting capacity handles motor loads and air conditioning startup surges, while 3 percent THD protects laptops, TVs, and medical equipment from voltage spikes.
  • Most Powerful
    Westinghouse iGen8200TFc
    6600W running
  • Quietest
    Cummins Onan P5000iDF EFI
    52 dB
  • Longest Runtime
    Cummins Onan P5000iDF EFI
    13h at 50% load
Where to buy
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Cummins Onan P5000iDF EFI
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Westinghouse iGen8200TFc
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