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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 P4500i
  • DuroStar DS13000MXT
  • Model Onan P4500i
    Model Onan P4500i

    Cummins 3,700W Gas Generator

    3700W
    Running
    52 dB
    Noise
    View details
  • Model DS13000MXT
    Model DS13000MXT

    DuroStar 10,500W Tri-Fuel Generator

    10500W
    Running
    74 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 P4500iDuroStar DS13000MXT
General
Product type
Generator
Generator
Fuel
Gasoline
Tri-Fuel
InverterYesNo
Parallel capableYesNo
RV readyYesYes
Running watts
3700 W
Winner: Winner: 10500 W
Starting watts
4500 W
Winner: Winner: 13000 W
Noise (lower limit)
Winner: Winner: 52 dB
74 dB
Weight
Winner: Winner: 98 lbs
211 lbs
Run time @50% load
Winner: Winner: 15 h
8.5 h
Run time @25% load
18 h
17 h
Fuel tank
3.4 gal
8.3 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
24.5 x 18.3 x 20.5
30.5 x 27.3 x 26
Electrical
Voltage (AC)
120
120/240
Voltage (DC)
5
Not available
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
3 %
Not available
Engine
Engine
224 cc Ducar OHV 4-stroke
500 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
3700 W
10500 W
Starting watts
4500 W
13000 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
15 h
8.5 h
Run time @25% load
18 h
17 h
Natural gasNot availableNot available
Running watts
Not available
9000 W
Starting watts
Not available
11250 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
PropaneNot availableNot available
Running watts
Not available
10000 W
Starting watts
Not available
12500 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
3.3 h
Run time @25% load
Not available
6.5 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Not available
UPC
690781007925
811640017149
Core / High-priority specs
Running Watts (Gasoline)
3700
10500
Running Watts (Propane)
Not available
10000
Running Watts (Natural Gas)
Not available
9000
Starting Watts (Gasoline)
4500
13000
Starting Watts (Propane)
Not available
12500
Starting Watts (Natural Gas)
Not available
11250
Runtime @ 50% Load (Gasoline)
15
8.5
Runtime @ 50% Load (Propane)
Not available
3.3
Runtime @ 25% Load (Gasoline)
18
17
Runtime @ 25% Load (Propane)
Not available
6.5
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Ducar OHV 4-stroke
OHV 4-stroke, cast iron sleeve
Engine Displacement
224
500
Cylinder Sleeve
Not available
cast iron sleeve
Alternator Winding Material
Not available
Copper windings
Engine Oil Type
10W30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
18
17
Runtime @ 50% Load (Gasoline)
15
8.5
Runtime @ 50% Load (Propane)
Not available
3.3
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringNoYes
Included equipment
Included Accessories
Oil, funnel, tool kit, key fob, battery charger, and battery
Funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
3
Part Number
A058U955
Not available
Additional specs
Summary
The Cummins Onan P4500i is a 3700-watt inverter generator built for users who need reliable power without the noise penalty. Its 4500-watt peak capacity handles startup surges for air conditioners, power tools, and RV air conditioning units. The gasoline engine runs clean enough for sensitive electronics like laptops and phones, thanks to a 3 percent THD rating that protects against voltage spikes. This unit bridges the gap between portable camping generators and stationary backup power, making it useful for RV owners, homeowners facing extended outages, and contractors working near occupied spaces.
The DuroStar DS13000MXT is a 10,500-watt tri-fuel generator built for high-demand applications. Its tri-fuel capability (gasoline, propane, natural gas) and 13,000-watt starting capacity make it suitable for whole-house backup, RV power, and job-site work where fuel supply flexibility matters.
  • Most Powerful
    DuroStar DS13000MXT
    10500W running
  • Quietest
    Cummins Onan P4500i
    52 dB
  • Longest Runtime
    Cummins Onan P4500i
    15h at 50% load
Where to buy
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Cummins Onan P4500i
Store links
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DuroStar DS13000MXT
Store links
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