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.
- DuroStar DS13000X
- Genmax GM9000iE
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 | DuroStar DS13000X | Genmax GM9000iE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | Yes | Yes |
| Running watts | Winner: Winner: 10500 W | 7600 W |
| Starting watts | Winner: Winner: 13000 W | 9000 W |
| Noise (lower limit) | 74 dB | Winner: Winner: 62 dB |
| Weight | 240 lbs | Winner: Winner: 233.7 lbs |
| Run time @50% load | 8.5 h | Winner: Winner: 10 h |
| Run time @25% load | 17 h | 14.5 h |
| Fuel tank | 8.3 gal | 6.9 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 30 x 29 x 26 | 30.9 x 22.6 x 29.3 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | 5 |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 12 % | ≤3% % |
| Engine | ||
| Engine | 500 cc OHV 4-stroke, cast iron sleeve | 458 cc Dinking OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 5 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 10500 W | 7600 W |
| Starting watts | 13000 W | 9000 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 | 8.5 h | 10 h |
| Run time @25% load | 17 h | 14.5 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 | Not available | Bonded to frame |
| UPC | 811640016739 | 798357188662 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 10500 | 7600 |
| Starting Watts (Gasoline) | 13000 | 9000 |
| Runtime @ 50% Load (Gasoline) | 8.5 | 10 |
| Runtime @ 25% Load (Gasoline) | 17 | 14.5 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 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 | 500 cc OHV 4-stroke, cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 500 | 458 |
| Engine Oil Type | 10W-30 | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 17 | 14.5 |
| Runtime @ 50% Load (Gasoline) | 8.5 | 10 |
| 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 | Yes |
| Included equipment | ||
| Included Accessories | Funnel, tool kit, battery, and wheel kit | Funnel, Tool kit, Key fob, and Battery |
| Additional specs | ||
| Summary | The DuroStar DS13000X is a 10,500-watt gasoline generator built to handle whole-home backup power and job site demands. With 13,000 peak watts and a 500cc OHV engine, this unit can run a full refrigerator, multiple air conditioning units, and power tools simultaneously. The 8.3-gallon fuel tank stretches runtime to 17 hours at 25% load, meaning users can maintain power through an entire night without refueling. At 50% load, the 8.5-hour runtime covers a typical workday, making this suitable for both emergency preparedness and extended outdoor use.
The DS13000X includes both recoil and electric start, so users avoid the frustration of pulling a cord in cold weather or after long storage. A 5-year warranty backs the unit, which is 60% longer than the 3.1-year industry average for this wattage class. The combination of power output, fuel capacity, and starting convenience positions this generator as a practical choice for homeowners and contractors who need reliable, extended-runtime power without the complexity of inverter technology. | The Genmax GM9000iE is a 7,600-watt gasoline inverter generator built around a 458cc 4-stroke engine. It delivers 9,000 peak watts for starting large appliances like air conditioners and refrigerators, then sustains 7,600 running watts for simultaneous multi-device operation. The inverter topology keeps total harmonic distortion at 3% or below, protecting laptops, TVs, and other sensitive gear from electrical damage. |
- Most PowerfulDuroStar DS13000X10500W running
- QuietestGenmax GM9000iE62 dB
- Longest RuntimeGenmax GM9000iE10h at 50% load
Where to buy
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DuroStar DS13000X
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Genmax GM9000iE
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