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.
- Briggs & Stratton 30742
- Genmax GM6000XiE
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 | Briggs & Stratton 30742 | Genmax GM6000XiE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | Yes |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 8000 W | 5250 W |
| Starting watts | Winner: Winner: 10000 W | 6000 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 70 dB |
| Weight | 246 lbs | Winner: Winner: 106.9 lbs |
| Run time @50% load | Winner: Winner: 9 h | Winner: Winner: 9 h |
| Run time @25% load | Not available | 13 h |
| Fuel tank | 7.5 gal | 3.8 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 28.4 x 30.5 x 29.1 | 22.2 x 18.1 x 17.7 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | 5 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | less than 3% % |
| Engine | ||
| Engine | Briggs & Stratton OHV 4-stroke | 312 cc Dinking OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric |
| Warranty | ||
| Warranty | 3 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8000 W | 5250 W |
| Starting watts | 10000 W | 6000 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 h | 9 h |
| Run time @25% load | Not available | 13 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | true |
| Compliance | EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | Bonded to frame |
| UPC | 11675307424 | 860012189717 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8000 | 5250 |
| Starting Watts (Gasoline) | 10000 | 6000 |
| Runtime @ 50% Load (Gasoline) | 9 | 9 |
| Runtime @ 25% Load (Gasoline) | Not available | 13 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R) | 1x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Briggs & Stratton OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 420 | 312 |
| Engine Oil Type | Not available | SAE 10W/30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | Not available | 13 |
| Runtime @ 50% Load (Gasoline) | 9 | 9 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric | Not available |
| Included Accessories | Oil, battery, and wheel kit | Funnel, tool kit, battery, wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | Not available |
| Additional specs | ||
| Summary | The Briggs & Stratton 30742 is an 8,000-watt gasoline generator built for job sites and home backup power. Its 10,000-watt peak output handles motor startup surges, while the dual-voltage 120/240V configuration powers both household circuits and heavy equipment like air compressors or welders. | The Genmax GM6000XiE is a 5250-watt inverter generator built around a 312cc OHV engine. It delivers 6000 watts at startup, enough to handle the initial surge of refrigerators, air compressors, and power tools. The inverter produces less than 3% THD, meaning laptops and phones charge safely. At 106.9 lbs with wheels included, it sits between grab-and-go portability and serious job-site power. |
- Most PowerfulBriggs & Stratton 307428000W running
- QuietestGenmax GM6000XiE70 dB
- Longest RuntimeBriggs & Stratton 307429h at 50% load
Where to buy
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Briggs & Stratton 30742
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Genmax GM6000XiE
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