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.
- Generac #8150 GP5500E
- Predator 72920
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 | Generac #8150 GP5500E | Predator 72920 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 5500 W | Winner: Winner: 5500 W |
| Starting watts | Winner: Winner: 6875 W | 6500 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 73.5 dB |
| Weight | Winner: Winner: 163 lbs | 165 lbs |
| Run time @50% load | 10.5 h | Winner: Winner: 14.5 h |
| Run time @25% load | 13.4 h | Not available |
| Fuel tank | 5.4 gal | Not available |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 30 x 27 x 25 | 26-7/8 x 22 x 22-3/4 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240V |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | Not available | Not available |
| Engine | ||
| Engine | Generac OHV 4-stroke | Not available |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Not available |
| Warranty | ||
| Warranty | 2 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 5500 W | Not available |
| Starting watts | 6875 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 | 10.5 h | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | Not available |
| Compliance | CARB, EPA | Not available |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | true | Not available |
| UPC | 696471104639 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 5500 | Not available |
| Starting Watts (Gasoline) | 6875 | Not available |
| Runtime @ 50% Load (Gasoline) | 10.5 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R) | Not available |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Not available |
| Engine Displacement | 298 | 301 |
| Engine Oil Type | 5W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 10.5 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Mobility Components | Yes | Not available |
| Starting Components | Recoil, Electric | Not available |
| Included Accessories | Oil, Funnel, Tool Kit, Battery, and Wheel Kit | Not available |
| Warranty & identification | ||
| Commercial Warranty | 2 | Not available |
| Part Number | 8150 | Not available |
| Additional specs | ||
| Summary | 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. | The PREDATOR® 6500 Watt Portable Generator is designed for home backup during emergencies and powering tools at jobsites. It features a 301cc gas engine, GFCI outlets, and CO SECURE® carbon monoxide shutdown for safety. |
- Most PowerfulGenerac #8150 GP5500E5500W running
- QuietestPredator 7292073.5 dB
- Longest RuntimePredator 7292014.5h at 50% load
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Generac #8150 GP5500E
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Predator 72920
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