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.
- Cummins Onan P2500i
- Westinghouse WGen5300cv
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 | Cummins Onan P2500i | Westinghouse WGen5300cv |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | No | Yes |
| Running watts | 2200 W | Winner: Winner: 5300 W |
| Starting watts | 2500 W | Winner: Winner: 6600 W |
| Noise (lower limit) | Winner: Winner: 52 dB | 68 dB |
| Weight | Winner: Winner: 48 lbs | 133.6 lbs |
| Run time @50% load | 8 h | Winner: Winner: 11 h |
| Run time @25% load | 10 h | 14.5 h |
| Fuel tank | 1 gal | 4.7 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 19.8 x 10.5 x 18.3 | 23.2 x 20.1 x 19.1 |
| Electrical | ||
| Voltage (AC) | 120 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | ≤ 23% % |
| Engine | ||
| Engine | 98 cc Ducar OHV 4-stroke engine | 274 cc OHV 4-stroke, cast iron sleeve. |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 2200 W | 5300 W |
| Starting watts | 2500 W | 6600 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 | 8 h | 11 h |
| Run time @25% load | 10 h | 14.5 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Floating |
| UPC | 690781007918 | 850011336700 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2200 | 5300 |
| Starting Watts (Gasoline) | 2500 | 6600 |
| Runtime @ 50% Load (Gasoline) | 8 | 11 |
| Runtime @ 25% Load (Gasoline) | 10 | 14.5 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) | 1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Ducar OHV 4-stroke | OHV 4-stroke. |
| Engine Displacement | 98 | 274 |
| Cylinder Sleeve | Not available | Cast iron sleeve. |
| Engine Oil Type | SAE 10W30 | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 10 | 14.5 |
| Runtime @ 50% Load (Gasoline) | 8 | 11 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, and tool kit | Oil, funnel, tool kit, and wheel kit |
| Additional specs | ||
| Summary | The Cummins Onan P2500i is a 2200-watt inverter generator built for users who need portable power without sacrificing runtime or noise control. At 48 pounds and measuring 19.8 by 10.5 by 18.3 inches, this unit bridges the gap between true portability and practical capacity. It can run a microwave, small refrigerator, or circular saw continuously, making it suitable for camping trips, job sites, tailgating, and emergency backup. The 1-gallon fuel tank delivers 10 hours at 25 percent load and 8 hours at 50 percent load, meaning most users refuel once per day rather than multiple times.
The inverter topology produces clean power with less than 3 percent THD, which protects laptops, phone chargers, and sensitive electronics from voltage spikes. Cummins backs this unit with a 3-year warranty, longer than the 2.4-year average for comparable inverter generators. The 52 dBA noise level sits between a normal conversation and light traffic, allowing operation in noise-restricted campgrounds and residential neighborhoods without drawing complaints. | The Westinghouse WGen5300cv is a gasoline-powered generator with a rated wattage of 5300 watts and a peak wattage of 6600 watts. It is designed for portable use with features suitable for home backup and RV applications. |
- Most PowerfulWestinghouse WGen5300cv5300W running
- QuietestCummins Onan P2500i52 dB
- Longest RuntimeWestinghouse WGen5300cv11h at 50% load
Where to buy
Prices can change. We update these automatically.
Cummins Onan P2500i
Store links
No links yet.
Westinghouse WGen5300cv
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.