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Pulsar PGD40iSCO vs Firman W03386

Pulsar PGD40iSCO vs Firman W03386

Pulsar PGD40iSCO is far lighter at 46 lb, while Firman W03386 runs longer at 9 hrs (25%). Both are quiet inverter generators for RV and backup.

  • Firman W03386
  • Pulsar PGD40iSCO

Comparison Overview

Portability is the biggest separator here: the Pulsar PGD40iSCO weighs 46 lb, while the Firman W03386 comes in at 91 lb, which is a very different experience if you load it into a truck, RV bay, or move it around camp.

Power output is close enough to be apples-to-apples for most shoppers. The Pulsar delivers 3200 running watts and 4000 starting watts, giving it a bit more surge headroom for motor starts. The Firman is rated at 3300 running watts and 3650 starting watts, slightly higher continuous power but less starting punch.

Noise is similarly camp-friendly, with the Pulsar at 59 dB and the Firman at 58 dB. Runtime data points differ: the Firman is listed at 9 hours at 25% load, while the Pulsar shows 4.5 hours at 50% load, so the Firman leans toward longer, lighter-load sessions and the Pulsar toward shorter, heavier-load stretches.

Both are gasoline inverter generators with 3-year warranties, so the better pick usually comes down to whether you value easy carrying (Pulsar) or longer run time and a heavier, more stationary setup (Firman).

Key takeaways

  • Pulsar PGD40iSCO weighs 46 lb, far easier to lift and transport.
  • Firman W03386 weighs 91 lb, better for stationary use than frequent carrying.
  • Pulsar provides 4000 starting watts, helpful for motor-start surges.
  • Firman delivers 3300 running watts, slightly higher continuous output than Pulsar.
  • Firman lists 9 hours runtime at 25% load, good for long light-load sessions.
  • Both are quiet inverter generators around 58 to 59 dB with 3-year warranties.

Best use cases

Choose the Pulsar PGD40iSCO if you need a generator you will actually move often. At 46 lb, it is much easier for one person to lift into an SUV, set on a picnic pad, or reposition around a driveway during an outage. That portability also makes it a strong fit for RVers who want a capable inverter unit without committing to a heavy, wheeled frame. With 4000 starting watts, it is the better bet of the two for brief surge demands, like starting a small air conditioner, a fridge compressor, or power tools that kick hard at startup (as long as your total running load stays within 3200 watts). The tradeoff is the listed 4.5 hours at 50% load, which can mean more frequent refueling if you are pushing it harder.

Choose the Firman W03386 if your priority is longer run time at lighter loads and you do not plan to carry it far. The listed 9 hours at 25% load is appealing for overnight camping, tailgating, or keeping essentials going during an outage without constant attention. It also offers slightly higher continuous output at 3300 running watts, which can help when you have several smaller items running at once. The downside is the 91 lb weight, which can be a dealbreaker if you need to lift it into a vehicle or move it solo. Noise is a wash at 58 dB versus 59 dB, so the decision is more about handling and run-time expectations than sound.

Verdict & recommendation

If your priority is easy transport and higher starting headroom, pick the Pulsar PGD40iSCO, its 46 lb weight and 4000 starting watts make it the more convenient grab-and-go option. If your priority is longer stretches between refueling at lighter loads and you can treat the generator as mostly stationary, the Firman W03386 is the more comfortable fit, especially with its 9-hour runtime at 25% load.

Both are quiet inverter-style gasoline generators with 3-year warranties, and their running power is close enough that most real-world choices come down to how you will move it and how long you want it to run unattended.

Last updated February 23, 2026

  • Model W03386
    Model W03386

    Firman 3,300W Gas Generator

    3300W
    Running
    58 dB
    Noise
    View details
  • Model PGD40iSCO
    Model PGD40iSCO

    Pulsar 3,200W Gas Generator

    3200W
    Running
    59 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
SpecificationFirman W03386Pulsar PGD40iSCO
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyYesYes
Running watts
Winner: Winner: 3300 W
3200 W
Starting watts
3650 W
Winner: Winner: 4000 W
Noise (lower limit)
Winner: Winner: 58 dB
59 dB
Weight
91 lbs
Winner: Winner: 46 lbs
Run time @50% load
Not available
Winner: Winner: 4.5 h
Run time @25% load
9 h
Not available
Fuel tank
1.8 gal
1 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
23.2 x 17.8 x 17.9
18.9 x 11.4 x 17.3
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
Not available
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<3% %
Not available
Engine
Engine
193 cc OHV 4-stroke, cast iron sleeve.
145 cc Ducar OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
3300 W
3200 W
Starting watts
3650 W
4000 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
4.5 h
Run time @25% load
9 h
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
Floating
UPC
840876133866
814726027674
Core / High-priority specs
Running Watts (Gasoline)
3300
3200
Starting Watts (Gasoline)
3650
4000
Runtime @ 50% Load (Gasoline)
Not available
4.5
Runtime @ 25% Load (Gasoline)
9
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
193
145
Cylinder Sleeve
cast iron sleeve
Not available
Engine Oil Type
See 'Add Engine Oil' Section
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
9
Not available
Runtime @ 50% Load (Gasoline)
Not available
4.5
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, funnel, tool kit, key fob, battery charger, battery charging cables, and battery
Not available
Warranty & identification
Commercial Warranty
3
3
Additional specs
Summary
The Firman W03386 is a 3,300-watt inverter generator built for RV camping, emergency backup, and light job site work. Its 3,650-watt peak capacity handles startup surges from air conditioning units, refrigerators, and power tools without strain. Because the unit runs on gasoline with a 1.8-gallon tank, users get up to 9 hours of runtime at 25% load before refueling. The inverter topology and sub-3% THD output means laptops, smartphones, and sensitive electronics charge safely without voltage spikes that damage circuitry. At 58 dB, it operates at conversational volume, making it acceptable for residential neighborhoods and campgrounds where noise restrictions apply. This is a mid-sized workhorse for users who need portable power without the weight penalty of larger stationary units.
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.
  • Most Powerful
    Firman W03386
    3300W running
  • Quietest
    Firman W03386
    58 dB
  • Longest Runtime
    Pulsar PGD40iSCO
    4.5h at 50% load
Where to buy
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Firman W03386
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Pulsar PGD40iSCO
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