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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
  • Pulsar PGD105TiSCO
  • Model Onan P4500i
    Model Onan P4500i

    Cummins 3,700W Gas Generator

    3700W
    Running
    52 dB
    Noise
    View details
  • Model PGD105TiSCO
    Model PGD105TiSCO

    Pulsar 8,500W Tri-Fuel Generator

    8500W
    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
SpecificationCummins Onan P4500iPulsar PGD105TiSCO
General
Product type
Generator
Generator
Fuel
Gasoline
Tri-Fuel
InverterYesYes
Parallel capableYesYes
RV readyYesNo
Running watts
3700 W
Winner: Winner: 8500 W
Starting watts
4500 W
Winner: Winner: 10500 W
Noise (lower limit)
Winner: Winner: 52 dB
62 dB
Weight
Winner: Winner: 98 lbs
246.9 lbs
Run time @50% load
Winner: Winner: 15 h
9 h
Run time @25% load
18 h
Not available—
Fuel tank
3.4 gal
6.9 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
24.5 x 18.3 x 20.5
31.4 x 22.8 x 29.4
Electrical
Voltage (AC)
120
120/240
Voltage (DC)
5
5
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
3 %
3 %
Engine
Engine
224 cc Ducar OHV 4-stroke
458 cc OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil; Electric; Remote
Recoil, Electric, Remote
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
3700 W
8500 W
Starting watts
4500 W
10500 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
9 h
Run time @25% load
18 h
Not available—
Natural gasNot available—Not available—
Running watts
Not available—
6800 W
Starting watts
Not available—
8400 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 available—Not available—
Running watts
Not available—
8000 W
Starting watts
Not available—
9500 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
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Floating
true
UPC
690781007925
814726028121
Core / High-priority specs
Running Watts (Gasoline)
3700
8500
Running Watts (Propane)
Not available—
8000
Running Watts (Natural Gas)
Not available—
6800
Starting Watts (Gasoline)
4500
10500
Starting Watts (Propane)
Not available—
9500
Starting Watts (Natural Gas)
Not available—
8400
Runtime @ 50% Load (Gasoline)
15
9
Runtime @ 25% Load (Gasoline)
18
Not available—
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
Engine Displacement
224
458
Engine Oil Type
10W30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
18
Not available—
Runtime @ 50% Load (Gasoline)
15
9
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Not available—
Recoil, Electric, Remote
Included Accessories
Oil, funnel, tool kit, key fob, battery charger, and battery
Oil, tool kit, key fob, natural gas hose with NPT adapter, propane hose, and battery
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 Pulsar PGD105TiSCO is a 10,500-watt peak inverter generator that operates on tri-fuel options including gasoline, propane, and natural gas. It features a 458cc OHV engine, multiple starting methods, and is suitable for residential, outdoor, and work applications.
  • Most Powerful
    Pulsar PGD105TiSCO
    8500W running
  • Quietest
    Cummins Onan P4500i
    52 dB
  • Longest Runtime
    Cummins Onan P4500i
    15h at 50% load
Where to buy
Prices can change. We update these automatically.
Cummins Onan P4500i
Store links
No links yet.
Pulsar PGD105TiSCO
Store links
No links yet.
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