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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.

  • Pulsar PGD40iSCO
  • Cat INV2000
  • Model PGD40iSCO
    Model PGD40iSCO

    Pulsar 3,200W Gas Generator

    3200W
    Running
    59 dB
    Noise
    View details
  • Model INV2000
    Model INV2000

    Cat 1,800W Gas Generator

    1800W
    Running
    52 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
SpecificationPulsar PGD40iSCOCat INV2000
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesNo
RV readyYesNo
Running watts
Winner: Winner: 3200 W
1800 W
Starting watts
Winner: Winner: 4000 W
2250 W
Noise (lower limit)
59 dB
Winner: Winner: 52 dB
Weight
Winner: Winner: 46 lbs
48.8 lbs
Run time @50% load
4.5 h
Winner: Winner: 6 h
Run time @25% load
Not available—
10 h
Fuel tank
1 gal
1 gal
Fuel gaugeNoYes
Approx. dimensions (L × W × H)
18.9 x 11.4 x 17.3
19.6 x 12.5 x 18.1
Electrical
Voltage (AC)
120
120V 60 Hz
Voltage (DC)
Not available—
12
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
<3% %
Engine
Engine
145 cc Ducar OHV 4-stroke
OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil
Recoil
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot available—Not available—
Running watts
3200 W
1800 W
Starting watts
4000 W
2250 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
4.5 h
6 h
Run time @25% load
Not available—
10 h
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
814726027674
815683024881
Core / High-priority specs
Running Watts (Gasoline)
3200
1800
Starting Watts (Gasoline)
4000
2250
Runtime @ 50% Load (Gasoline)
4.5
6
Runtime @ 25% Load (Gasoline)
Not available—
10
AC Outlet Types
1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R) GFCI
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
145
79.7
Engine Oil Type
10W-30
SAE 30 or 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available—
10
Runtime @ 50% Load (Gasoline)
4.5
6
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesNo
Included equipment
Included Accessories
Not available—
Tool kit
Warranty & identification
Commercial Warranty
3
2
Additional specs
Summary
The Pulsar PGD40iSCO is a 4,000-watt inverter generator featuring a 145cc OHV air-cooled engine, providing 3,200 running watts and 4,000 peak watts. It operates quietly at 59 dB and offers up to 4.5 hours of runtime at half load. Equipped with CO Sentry for carbon monoxide detection, it ensures safety during operation.
The Cat INV2000 is an 1800-watt inverter generator built for users who need portable, clean power without the noise. At 48.8 pounds and measuring 19.6 x 12.5 x 18.1 inches, this unit bridges the gap between lightweight portability and genuine load capacity. It runs on standard gasoline and produces less than 3% THD, meaning laptops, phones, and sensitive electronics stay safe from voltage spikes. The recoil start fires up quickly, and the 52 dBA noise level keeps it quiet enough for residential areas and campgrounds. With 10 hours of runtime at 25% load and 6 hours at 50% load, users can power essential devices through a full day or night without refueling. The 1-gallon fuel tank and automatic low-oil shutdown mean less maintenance worry. This is a grab-and-go generator for camping, tailgating, emergency backup, and light outdoor work where portability matters as much as power.
  • Most Powerful
    Pulsar PGD40iSCO
    3200W running
  • Quietest
    Cat INV2000
    52 dB
  • Longest Runtime
    Cat INV2000
    6h at 50% load
Where to buy
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Pulsar PGD40iSCO
Store links
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Cat INV2000
Store links
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