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 SUA7000
- Cat RP5500
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 SUA7000 | Cat RP5500 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 6000 W | 5500 W |
| Starting watts | Winner: Winner: 7000 W | 6875 W |
| Noise (lower limit) | Winner: Winner: 74 dB | 0 dB |
| Weight | 195 lbs | Winner: Winner: 178 lbs |
| Run time @50% load | 12 h | Winner: Winner: 15 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 7 gal | 7.9 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 27.8 x 27.2 x 25.4 | 32.9 x 27.4 x 24.7 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 389 cc Senci OHV 4-stroke | 300 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 2 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 6000 W | 5500 W |
| Starting watts | 7000 W | 6875 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 | 12 h | 15 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | Not available |
| UPC | 851217006343 | 815683020036 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 6000 | 5500 |
| Starting Watts (Gasoline) | 7000 | 6875 |
| Runtime @ 50% Load (Gasoline) | 12 | 15 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R) GFCI, 1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Senci OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 389 | 300 |
| Engine Oil Type | Not available | SAE 30 or 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 12 | 15 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | No | Yes |
| Included equipment | ||
| Included Accessories | Oil, tool kit, RV adapter, battery charging cables, and wheel kit | Oil, funnel, tool kit, and wheel kit |
| Warranty & identification | ||
| Part Number | Not available | 502-3686 |
| Additional specs | ||
| Summary | The A-iPower SUA7000 is a 6000-watt gasoline generator built for homeowners, contractors, and outdoor users who need sustained power without inverter complexity. Its 7000-watt peak output handles the startup surge of air conditioners, refrigerators, and power tools, while the 6000-watt running capacity maintains them continuously. The 7-gallon fuel tank stretches to 12 hours at half load, meaning users can power a job site through a full workday or run essential home backup through an overnight outage without refueling. This is a stationary workhorse, not a portable companion. The 195-pound weight and recoil-start mechanism demand a permanent or semi-permanent placement, but the included wheel kit and accessories (oil, tool kit, RV adapter, battery cables) mean setup happens immediately out of the box. | The Cat RP5500 is a 5500-watt gasoline generator built for homeowners, contractors, and outdoor enthusiasts who need reliable backup power without the complexity of larger units. This wattage tier handles most household circuits simultaneously, meaning you can run a refrigerator, well pump, and power tools at the same time, but not your entire home's air conditioning system. The 6875-watt peak capacity gives it the muscle to start high-inrush devices like compressors and sump pumps without stalling. Because the RP5500 runs on gasoline, fuel is available at any gas station, eliminating the supply chain friction of propane or diesel models. The 7.9-gallon tank paired with 15-hour runtime at half load means you refuel roughly once per day under typical use, not every few hours. |
- Most PowerfulA-iPower SUA70006000W running
- QuietestA-iPower SUA700074 dB
- Longest RuntimeCat RP550015h at 50% load
Where to buy
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A-iPower SUA7000
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Cat RP5500
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