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- Generac #7715 GP8000E
- Westinghouse WGen9500DF
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 #7715 GP8000E | Westinghouse WGen9500DF |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Dual-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 8000 W | Winner: Winner: 9500 W |
| Starting watts | 10000 W | Winner: Winner: 12500 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 74 dB |
| Weight | Winner: Winner: 198 lbs | 211 lbs |
| Run time @50% load | Winner: Winner: 10 h | 8 h |
| Run time @25% load | 15 h | 12 h |
| Fuel tank | 7.9 gal | 6.6 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 27.2 x 27 x 26.5 | 27.2 x 26.1 x 26.5 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240V 60 Hz |
| 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 | Generac OHV 4-stroke, 420 cc | Westinghouse OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8000 W | 9500 W |
| Starting watts | 10000 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 | 10 h | 8 h |
| Run time @25% load | 15 h | 12 h |
| Propane | Not available | Not available |
| Running watts | Not available | 8500 W |
| Starting watts | Not available | 11200 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 | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | true |
| UPC | 696471086225 | 853544008298 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8000 | 9500 |
| Running Watts (Propane) | Not available | 8500 |
| Starting Watts (Gasoline) | 10000 | 12500 |
| Starting Watts (Propane) | Not available | 11200 |
| Runtime @ 50% Load (Gasoline) | 10 | 8 |
| Runtime @ 25% Load (Gasoline) | 15 | 12 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Not available | OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 420 | 457 |
| Cylinder Sleeve | Not available | Cast iron sleeve |
| Engine Oil Type | 10W-30 / SAE 30 | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 15 | 12 |
| Runtime @ 50% Load (Gasoline) | 10 | 8 |
| 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 | Not available | Yes |
| Starting Components | Oil, battery, and wheel kit | Not available |
| Included Accessories | Oil, battery, and wheel kit | Oil, funnel, tool kit, key fob, battery charger, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | Not available | 3 |
| Commercial Warranty | 3 | 3 |
| Part Number | 7715, 7686 | Not available |
| Additional specs | ||
| Summary | The Generac GP8000E is an 8,000-watt gasoline generator built for homeowners and contractors needing whole-house backup power or serious job site output. With 10,000 starting watts, it can handle the initial surge of air conditioners, well pumps, and power tools while running smaller loads continuously. The 7.9-gallon fuel tank delivers 15 hours at 25% load, meaning users can power essential devices through an entire night without refueling. | The Westinghouse WGen9500DF is a dual fuel portable generator capable of producing up to 12,500 peak watts and 9,500 running watts on gasoline, and 11,200 peak watts and 8,500 running watts on propane. It features a 457cc 4-Stroke OHV engine, push-button electric start with remote key fob, and a VFT Data Center displaying real-time information. Designed for home backup, job sites, or recreational use, it offers up to 12 hours of run time on a 6.6-gallon fuel tank. |
- Most PowerfulWestinghouse WGen9500DF9500W running
- QuietestWestinghouse WGen9500DF74 dB
- Longest RuntimeGenerac #7715 GP8000E10h at 50% load
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Generac #7715 GP8000E
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Westinghouse WGen9500DF
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