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 PG6580ECO
- WEN 56551
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).
| Specification | Pulsar PG6580ECO | WEN 56551 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 5300 W | 5000 W |
| Starting watts | Winner: Winner: 6580 W | 5500 W |
| Noise (lower limit) | 75 dB | Winner: Winner: 74 dB |
| Weight | Winner: Winner: 140 lbs | 190 lbs |
| Run time @50% load | 10 h | Winner: Winner: 11 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 5.3 gal | 6.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 26.6 x 19.7 x 18.7 | Not available |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | Not available |
| Voltage (DC) | 12 | 12 |
| GFCI outlets | Yes | No |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | No |
| THD | Not available | Not available |
| Engine | ||
| Engine | Ducar 274 cc OHV 4-stroke | EPAIII 389cc 13 HP OHV engine. |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Not available |
| Warranty | ||
| Warranty | 2 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 5300 W | Not available |
| Starting watts | 6580 W | Not available |
| 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 | 10 h | 11 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | Not available |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Not available |
| UPC | 814726027100 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 5300 | Not available |
| Starting Watts (Gasoline) | 6580 | Not available |
| Runtime @ 50% Load (Gasoline) | 10 | 11 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R) | Four 120V 20A three-prong receptacles. One twist-lock 120/240V 30A receptacle (L14-30). |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | Ducar OHV 4-stroke | OHV. |
| Engine Displacement | 274 | 389 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 10 | 11 |
| Controls & display | ||
| Display Type | Not available | Digital engine hour counter. |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Circuit breaker. |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Mobility Components | Not available | Wheel and handle kit. |
| Documentation | Not available | Product manual. |
| Included Accessories | Funnel, tool kit, battery, and wheel kit | Wheel and handle kit. NEMA L14-30 plug. |
| Warranty & identification | ||
| Residential Warranty | Not available | 2 |
| Part Number | Not available | 56551 |
| Additional specs | ||
| Summary | The Pulsar PG6580ECO is a 6,580-watt gasoline-powered portable generator equipped with a 274cc, 4-stroke, OHV engine. It features electric start with recoil backup, a 5.3-gallon fuel tank providing up to 10 hours of runtime at 50% load, and includes safety features like a CO shutdown sensor and low oil shutdown. Designed for versatility, it offers multiple outlets for various applications and is mounted on a durable powder-coated steel frame with fold-down handles and never-flat wheels for enhanced mobility. | The WEN 56551 is a 5000-watt gasoline generator built around a 389cc 13 HP OHV engine that delivers 5500 starting watts for handling the high inrush current that motors and compressors demand at startup. This wattage ceiling means you can run a mid-sized job site setup, power a home during an outage, or support RV systems without overloading the unit. The 6.5-gallon fuel tank stretches to 11 hours at 50 percent load, reducing refueling frequency during extended operations. A 2-year warranty backs the unit, giving you a defined window of manufacturer support. |
- Most PowerfulPulsar PG6580ECO5300W running
- QuietestWEN 5655174 dB
- Longest RuntimeWEN 5655111h at 50% load
Where to buy
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Pulsar PG6580ECO
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WEN 56551
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