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 GXS11300R
- Westinghouse WGen9500
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 GXS11300R | Westinghouse WGen9500 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | 9000 W | Winner: Winner: 9500 W |
| Starting watts | 11300 W | Winner: Winner: 12500 W |
| Noise (lower limit) | 78 dB | Winner: Winner: 74 dB |
| Weight | 216 lbs | Winner: Winner: 208 lbs |
| Run time @50% load | Not available | Winner: Winner: 8 h |
| Run time @25% load | 18 h | 12 h |
| Fuel tank | 9.5 gal | 6.6 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 28.8 x 28 x 26.7 | 27.2 x 26.5 x 26.5 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240V 60 Hz |
| Voltage (DC) | 12 | 5 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 23 % | 23 % |
| Engine | ||
| Engine | 459 cc OHV 4-stroke, cast iron sleeve | 457 cc Westinghouse OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9000 W | 9500 W |
| Starting watts | 11300 W | 12500 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 | 8 h |
| Run time @25% load | 18 h | 12 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | true |
| UPC | 850016881717 | 853544008199 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9000 | 9500 |
| Starting Watts (Gasoline) | 11300 | 12500 |
| Runtime @ 50% Load (Gasoline) | Not available | 8 |
| Runtime @ 25% Load (Gasoline) | 18 | 12 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Westinghouse OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 459 | 457 |
| Cylinder Sleeve | cast iron sleeve | cast iron sleeve |
| Alternator Winding Material | Brushed | Not available |
| Engine Oil Type | 10W-30 | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 18 | 12 |
| Runtime @ 50% Load (Gasoline) | Not available | 8 |
| Controls & display | ||
| Display Type | Digital Data Center | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Mobility Components | Yes | Not available |
| Starting Components | Battery, Remote Control Fob | Recoil, Electric, Remote |
| Maintenance Components | Included Oil, Funnel, Tool Kit | Not available |
| Documentation | Manual, Quick Start Guide, Warranty Card | Not available |
| Included Accessories | Oil, funnel, tool kit, key fob, RV adapter, battery charging cables, battery, and wheel kit | Oil, funnel, tool kit, key fob, battery charger, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 3 Year | Not available |
| Commercial Warranty | Not available | 3 |
| Part Number | GXS11300R | Not available |
| Additional specs | ||
| Summary | The A-iPower GXS11300R is a 9,000-watt gasoline generator built for job sites and RV applications where sustained power delivery matters more than portability. Its 459cc OHV engine produces 11,300 peak watts, enough to start large air compressors, welders, and multiple heavy tools simultaneously. The 9.5-gallon fuel tank keeps the unit running for 18 hours at quarter load, which translates to roughly one full workday before refueling. At 216 pounds, this is a stationary or trailer-mounted unit. The wheel kit helps, but moving it by hand across uneven ground requires planning. This generator targets users who need reliable power output over extended periods rather than grab-and-go convenience. | The Westinghouse WGen9500DF is a dual fuel portable generator that delivers up to 12,500 peak watts and 9,500 running watts, suitable for home backup and portable power needs. |
- Most PowerfulWestinghouse WGen95009500W running
- QuietestWestinghouse WGen950074 dB
- Longest RuntimeWestinghouse WGen95008h at 50% load
Where to buy
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A-iPower GXS11300R
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Westinghouse WGen9500
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