
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
| Specification | Firman W03386 | Pulsar PGD40iSCO |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | Yes | Yes |
| 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 gauge | No | No |
| 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 outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| 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 | ||
| Gasoline | Not available | Not 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 arrestor | Yes | Yes |
| 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 |


