Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
| Specification | Cummins Onan P4500i | DuroStar DS13000MXT |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Tri-Fuel |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | Yes | Yes |
| Running watts | 3700 W | Winner: Winner: 10500 W |
| Starting watts | 4500 W | Winner: Winner: 13000 W |
| Noise (lower limit) | Winner: Winner: 52 dB | 74 dB |
| Weight | Winner: Winner: 98 lbs | 211 lbs |
| Run time @50% load | Winner: Winner: 15 h | 8.5 h |
| Run time @25% load | 18 h | 17 h |
| Fuel tank | 3.4 gal | 8.3 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 24.5 x 18.3 x 20.5 | 30.5 x 27.3 x 26 |
| Electrical | ||
| Voltage (AC) | 120 | 120/240 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | Not available |
| Engine | ||
| Engine | 224 cc Ducar OHV 4-stroke | 500 cc 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 | 3700 W | 10500 W |
| Starting watts | 4500 W | 13000 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 | 15 h | 8.5 h |
| Run time @25% load | 18 h | 17 h |
| Natural gas | Not available | Not available |
| Running watts | Not available | 9000 W |
| Starting watts | Not available | 11250 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 |
| Propane | Not available | Not available |
| Running watts | Not available | 10000 W |
| Starting watts | Not available | 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 | 3.3 h |
| Run time @25% load | Not available | 6.5 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Not available |
| UPC | 690781007925 | 811640017149 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3700 | 10500 |
| Running Watts (Propane) | Not available | 10000 |
| Running Watts (Natural Gas) | Not available | 9000 |
| Starting Watts (Gasoline) | 4500 | 13000 |
| Starting Watts (Propane) | Not available | 12500 |
| Starting Watts (Natural Gas) | Not available | 11250 |
| Runtime @ 50% Load (Gasoline) | 15 | 8.5 |
| Runtime @ 50% Load (Propane) | Not available | 3.3 |
| Runtime @ 25% Load (Gasoline) | 18 | 17 |
| Runtime @ 25% Load (Propane) | Not available | 6.5 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Ducar OHV 4-stroke | OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 224 | 500 |
| Cylinder Sleeve | Not available | cast iron sleeve |
| Alternator Winding Material | Not available | Copper windings |
| Engine Oil Type | 10W30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 18 | 17 |
| Runtime @ 50% Load (Gasoline) | 15 | 8.5 |
| Runtime @ 50% Load (Propane) | Not available | 3.3 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, key fob, battery charger, and battery | Funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | 3 |
| Part Number | A058U955 | Not available |
| Additional specs | ||
| Summary | The Cummins Onan P4500i is a 3700-watt inverter generator built for users who need reliable power without the noise penalty. Its 4500-watt peak capacity handles startup surges for air conditioners, power tools, and RV air conditioning units. The gasoline engine runs clean enough for sensitive electronics like laptops and phones, thanks to a 3 percent THD rating that protects against voltage spikes. This unit bridges the gap between portable camping generators and stationary backup power, making it useful for RV owners, homeowners facing extended outages, and contractors working near occupied spaces. | The DuroStar DS13000MXT is a 10,500-watt tri-fuel generator built for high-demand applications. Its tri-fuel capability (gasoline, propane, natural gas) and 13,000-watt starting capacity make it suitable for whole-house backup, RV power, and job-site work where fuel supply flexibility matters. |