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- Briggs & Stratton 30737
- Generac #8150 GP5500E
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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 | Briggs & Stratton 30737 | Generac #8150 GP5500E |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 5000 W | Winner: Winner: 5500 W |
| Starting watts | 6250 W | Winner: Winner: 6875 W |
| Noise (lower limit) | 0 dB | 0 dB |
| Weight | 184 lbs | Winner: Winner: 163 lbs |
| Run time @50% load | Winner: Winner: 12 h | 10.5 h |
| Run time @25% load | Not available | 13.4 h |
| Fuel tank | 7.5 gal | 5.4 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 26 x 27 | 30 x 27 x 25 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | Briggs & Stratton PowerBuilt™ OHV 4-stroke | Generac OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric |
| Warranty | ||
| Warranty | 2 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 5000 W | 5500 W |
| Starting watts | 6250 W | 6875 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 | 12 h | 10.5 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | false |
| Compliance | N/A | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 11675307370 | 696471104639 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 5000 | 5500 |
| Starting Watts (Gasoline) | 6250 | 6875 |
| Runtime @ 50% Load (Gasoline) | 12 | 10.5 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI 1x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Briggs & Stratton PowerBuilt™ OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 389 | 298 |
| Engine Oil Type | Not available | 5W-30 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 12 | 10.5 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Mobility Components | Not available | Yes |
| Starting Components | Not available | Recoil, Electric |
| Included Accessories | Oil and wheel kit | Oil, Funnel, Tool Kit, Battery, and Wheel Kit |
| Warranty & identification | ||
| Commercial Warranty | Not available | 2 |
| Part Number | Not available | 8150 |
| Additional specs | ||
| Summary | The Briggs & Stratton 30737 is a 5000-watt gasoline generator built for homeowners and job site operators who need extended runtime without constant refueling. With 5000 running watts and 6250 peak watts, this unit can power a refrigerator, multiple lights, and power tools simultaneously, making it suitable for emergency backup or outdoor work. The 7.5-gallon fuel tank delivers 12 hours of runtime at half load, which means a full day of operation before refueling becomes necessary. This is a stationary-duty machine. At 184 pounds, it requires wheels or multiple people to move, so placement matters before startup. | The Generac GP5500E is a 5,500 watt gasoline generator built to power whole house essentials during outages or on job sites. Its 6,875 starting watts handle motor driven appliances like well pumps and air conditioners that demand heavy inrush current. For homeowners and contractors who want reliable backup without crossing into stationary generator territory, the GP5500E delivers meaningful output with the refueling simplicity of gasoline. |
- Most PowerfulGenerac #8150 GP5500E5500W running
- QuietestdB
- Longest RuntimeBriggs & Stratton 3073712h at 50% load
Where to buy
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Briggs & Stratton 30737
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Generac #8150 GP5500E
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