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| Specification | Cummins Onan P9500DF EFI | Westinghouse WGen3600cv |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 7500 W | 3600 W |
| Starting watts | Winner: Winner: 9500 W | 4650 W |
| Noise (lower limit) | 74 dB | Winner: Winner: 68 dB |
| Weight | 211.6 lbs | Winner: Winner: 100.6 lbs |
| Run time @50% load | 9.6 h | Winner: Winner: 10.5 h |
| Run time @25% load | 14.4 h | 14 h |
| Fuel tank | 6.6 gal | 4 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 27.3 x 20.6 x 22.6 | 23.3 x 17.5 x 18.7 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 23 % | 23 % |
| Engine | ||
| Engine | 420 cc OHV 4-stroke | 212 cc Westinghouse OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 7500 W | 3600 W |
| Starting watts | 9500 W | 4650 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 | 9.6 h | 10.5 h |
| Run time @25% load | 14.4 h | 14 h |
| Propane | Not available | Not available |
| Running watts | 6750 W | Not available |
| Starting watts | 8550 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 | Not available | Not available |
| Run time @25% load | 10.8 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | false |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Floating |
| UPC | Not available | 850011336731 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 7500 | 3600 |
| Running Watts (Propane) | 6750 | Not available |
| Starting Watts (Gasoline) | 9500 | 4650 |
| Starting Watts (Propane) | 8550 | Not available |
| Runtime @ 50% Load (Gasoline) | 9.6 | 10.5 |
| Runtime @ 25% Load (Gasoline) | 14.4 | 14 |
| Runtime @ 25% Load (Propane) | 10.8 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R) | AC outlets1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R)1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 420 | 212 |
| Cylinder Sleeve | Not available | Cast iron sleeve |
| Engine Oil Type | SAE10W30 | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 14.4 | 14 |
| Runtime @ 50% Load (Gasoline) | 9.6 | 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 | Yes | Not available |
| Starting Components | Not available | Oil, funnel, and tool kit |
| Included Accessories | Oil, funnel, tool kit, key fob, propane hose, battery, and wheel kit | Oil, funnel, and tool kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | 3 |
| Part Number | A075C509 | Not available |
| Additional specs | ||
| Summary | The Cummins Onan P9500DF EFI is a 7,500-watt dual-fuel generator built for users who need sustained power across multiple load types. On gasoline, it delivers 7,500 running watts and 9,500 peak watts. On propane, it drops to 6,750 running watts and 8,550 peak watts, which means propane users sacrifice roughly 10 percent of output but gain extended storage life and cleaner emissions. The electronic fuel injection engine handles high-altitude operation up to 13,123 feet without modification, making it viable for mountain jobsites, remote cabins, and RV camps where carbureted engines would struggle. At 211.6 pounds with an included wheel kit, this generator demands stationary placement or two-person handling, but the 6.6-gallon fuel tank stretches runtime to 14.4 hours at 25 percent load on gasoline. This is a workhorse for contractors, emergency backup, and off-grid scenarios where fuel flexibility and durability matter more than portability. | The Westinghouse WGen3600cv is a portable gas-powered generator designed for RV use and home backup power. It offers 3,600 running watts and 4,650 peak watts, powered by a 212cc 4-Stroke OHV Westinghouse Engine. The generator features a TT-30R RV outlet, providing up to 14 hours of run time on a 4-gallon fuel tank at 50% load. It includes safety features such as automatic low oil shutdown, automatic voltage regulation, overload protection, and a carbon monoxide (CO) sensor with automatic shutdown. |