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.
- A-iPower SUA12000E
- Generac #7951 RS8000E
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 | A-iPower SUA12000E | Generac #7951 RS8000E |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 9000 W | 8000 W |
| Starting watts | Winner: Winner: 12000 W | 10000 W |
| Noise (lower limit) | Winner: Winner: 78 dB | 0 dB |
| Weight | Winner: Winner: 206 lbs | 213.8 lbs |
| Run time @50% load | 9 h | Winner: Winner: 10.5 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 7 gal | 7.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 27.6 x 27 x 26.8 | 30 x 27.1 x 25.7 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | A-iPower OHV 4-stroke, cast iron sleeve | 420 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric |
| Warranty | ||
| Warranty | 2 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9000 W | 8000 W |
| Starting watts | 12000 W | 10000 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 | 9 h | 10.5 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | true |
| UPC | 851217006114 | 696471075823 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9000 | 8000 |
| Starting Watts (Gasoline) | 12000 | 10000 |
| Runtime @ 50% Load (Gasoline) | 9 | 10.5 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke, cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 459 | 420 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Engine Oil Type | Not available | 10W-30/ SAE30 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 9 | 10.5 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | SecurityLow oil and overload protection |
| Low Oil Protection | No | Yes |
| Included equipment | ||
| Mobility Components | Yes | Not available |
| Starting Components | Recoil, Electric | Not available |
| Included Accessories | Oil, tool kit, battery charging cables, battery, and wheel kit | Oil, battery charger, extension cord, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | Not available | 3 |
| Commercial Warranty | 2 | Not available |
| Additional specs | ||
| Summary | The A-iPower SUA12000E is a 9000-watt gasoline generator built for job sites and home backup where substantial power matters. At 9000 running watts, it can simultaneously power a central air unit, electric water heater, and multiple household circuits, or run a full complement of construction tools on site. The 12000-watt peak handles the inrush current when motors and compressors start, which prevents the generator from shutting down under load. This is a stationary-class unit. The 206-pound weight and included wheel kit signal that this generator stays in one location per work session rather than moving between rooms or vehicles. | The Generac RS8000E is a gasoline powered 8000 watt generator built for serious power demands. With 10000 watt starting capacity, this unit handles high draw appliances and tools simultaneously. Running a central air conditioner, refrigerator, sump pump, and several lights at once sits well within reach. For homeowners facing extended outages or contractors powering a full spread of tools on a job site, the RS8000E functions as a legitimate whole house or whole site backup solution. |
- Most PowerfulA-iPower SUA12000E9000W running
- QuietestA-iPower SUA12000E78 dB
- Longest RuntimeGenerac #7951 RS8000E10.5h at 50% load
Where to buy
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A-iPower SUA12000E
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Generac #7951 RS8000E
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