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.
- A-iPower SUA4500
- Sportsman GEN4000-SS
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 | A-iPower SUA4500 | Sportsman GEN4000-SS |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 3500 W | Winner: Winner: 3500 W |
| Starting watts | Winner: Winner: 4500 W | 4000 W |
| Noise (lower limit) | Winner: Winner: 68 dB | 69 dB |
| Weight | 111 lbs | Winner: Winner: 91 lbs |
| Run time @50% load | Winner: Winner: 11 h | 10 h |
| Run time @25% load | 14 h | Not available |
| Fuel tank | 4 gal | 3.9 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 23.4 x 22.8 x 22.6 | 23 x 19.5 x 17.5 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | Senci OHV 4-stroke, cast iron sleeve | 212 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 2 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3500 W | 3500 W |
| Starting watts | 4500 W | 4000 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 | 11 h | 10 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Not available |
| UPC | 851217006077 | 27077082470 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3500 | 3500 |
| Starting Watts (Gasoline) | 4500 | 4000 |
| Runtime @ 50% Load (Gasoline) | 11 | 10 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 223 | 212 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Engine Oil Type | SAE 10W-30 | SAE10W-30 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 11 | 10 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil | Recoil |
| Included Accessories | Oil, tool kit, and wheel kit | Funnel, tool kit, and battery charging cables |
| Warranty & identification | ||
| Commercial Warranty | 2 | Not available |
| Additional specs | ||
| Summary | The A-iPower SUA4500 is a 3,500-watt running generator built around a 223cc OHV 4-stroke engine with cast iron sleeves. This wattage class handles essential household appliances, power tools, and small job site equipment without breaking into the heavy-duty contractor tier. The 4,500-watt peak output gives it enough surge capacity to start refrigerators, air compressors, and welders that draw high inrush current. Gasoline fuel means quick refueling at any gas station, and the 4-gallon tank stretches runtime to 14 hours at quarter load or 11 hours at half load. That refueling cycle keeps users in the field longer without constant tank swaps. | The Sportsman GEN4000-SS is a gasoline-powered generator offering 4000 surge watts and 3500 running watts, suitable for running RVs, household appliances, and power tools. |
- Most PowerfulA-iPower SUA45003500W running
- QuietestA-iPower SUA450068 dB
- Longest RuntimeA-iPower SUA450011h at 50% load
Where to buy
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A-iPower SUA4500
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Sportsman GEN4000-SS
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