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| Specification | DEWALT DXGNR4000 | Generac #8251 GP2500i |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | No | No |
| Running watts | Winner: Winner: 4000 W | 2200 W |
| Starting watts | Winner: Winner: 5000 W | 2500 W |
| Noise (lower limit) | 0 dB | 0 dB |
| Weight | 119 lbs | Winner: Winner: 48 lbs |
| Run time @50% load | Winner: Winner: 10 h | 4.5 h |
| Run time @25% load | Not available | 8 h |
| Fuel tank | 3.4 gal | 1 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 23.7 x 23 x 21.4 | 19.7 x 11.4 x 17.9 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 223 cc OHV 4-stroke | 98 cc OHV 4-stroke |
| 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 | 4000 W | 2200 W |
| Starting watts | 5000 W | 2500 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 | 10 h | 4.5 h |
| Run time @25% load | Not available | 8 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | true |
| Compliance | CARB | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Not available |
| UPC | 696471075809 | 696471003946 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 4000 | 2200 |
| Starting Watts (Gasoline) | 5000 | 2500 |
| Runtime @ 50% Load (Gasoline) | 10 | 4.5 |
| Runtime @ 25% Load (Gasoline) | Not available | 8 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 98 cc OHV 4-stroke |
| Engine Displacement | 223 | 98 |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | Not available | 8 |
| Runtime @ 50% Load (Gasoline) | 10 | 4.5 |
| 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 | ||
| Starting Components | Not available | Recoil |
| Included Accessories | Oil, funnel, and wheel kit | Oil, funnel, tool kit, and battery charging cables |
| Warranty & identification | ||
| Commercial Warranty | Not available | 3 |
| Part Number | PMC164000 | 82512 |
| Additional specs | ||
| Summary | The DEWALT DXGNR4000 is a 4000-watt gasoline generator built around a 223cc OHV 4-stroke engine. This wattage class sits at the threshold between household backup and light job site work. At 4000 running watts, it can power a refrigerator, sump pump, and several lights simultaneously during an outage, or run circular saws and air compressors on a construction site, but not both at full capacity. The 5000-watt peak handles motor startup surges, which matters when appliances draw 20 to 30 percent more current at the moment they turn on.
The DXGNR4000 targets users who need portability without sacrificing power. A 3.4-gallon fuel tank delivers 10 hours of runtime at half load, meaning a full tank gets you through a night of backup power or a full workday on site. The recoil start requires physical effort to fire up, but it eliminates the complexity and cost of electric ignition. DEWALT backs this unit with a three-year warranty, signaling confidence in the engine and electrical components. | The Generac GP2500i is a 2200-watt inverter generator built for portable backup power and recreational use. At 48 pounds, it moves easily between campsites, job sites, and emergency situations. The inverter technology means laptops, phones, and sensitive tools run safely because the power output stays stable. This unit runs on gasoline and delivers 2500 starting watts, so it can handle the initial surge when motors kick on. |
