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| Specification | Cat RP5500 | VEVOR GF12000E-A2 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Tri-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 5500 W | Winner: Winner: 9000 W |
| Starting watts | 6875 W | Winner: Winner: 13500 W |
| Noise (lower limit) | 0 dB | 0 dB |
| Weight | Winner: Winner: 178 lbs | 234.8 lbs |
| Run time @50% load | Winner: Winner: 15 h | 9.5 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 7.9 gal | 9.2 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 32.9 x 27.4 x 24.7 | 29.9 x 28.7 x 27.4 |
| Electrical | ||
| Voltage (AC) | 120/240 | AC120V/AC240V |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | 0 % |
| Engine | ||
| Engine | 300 cc OHV 4-stroke | Four-Stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Not available |
| Warranty | ||
| Warranty | 2 years | 0 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 5500 W | 9000 W |
| Starting watts | 6875 W | 13500 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 | 15 h | 9.5 h |
| Run time @25% load | Not available | Not available |
| Natural gas | Not available | Not available |
| Running watts | Not available | 7200 W |
| Starting watts | Not available | 11000 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 | Not available | Not available |
| Run time @25% load | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | Not available | 8100 W |
| Starting watts | Not available | 12000 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 | Not available | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | Not available |
| Compliance | CARB, EPA | Not available |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Not available | Not available |
| UPC | 815683020036 | Not available |
| Core / High-priority specs | ||
| Generator Type | Not available | Generator |
| Running Watts (Gasoline) | 5500 | 9000 |
| Running Watts (Propane) | Not available | 8100 |
| Running Watts (Natural Gas) | Not available | 7200 |
| Starting Watts (Gasoline) | 6875 | 13500 |
| Starting Watts (Propane) | Not available | 12000 |
| Starting Watts (Natural Gas) | Not available | 11000 |
| Runtime @ 50% Load (Gasoline) | 15 | 9.5 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI, 1x 120/240V 30A (L14-30R) | Not available |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Not available |
| Engine Displacement | 300 | 500 |
| Engine Oil Type | SAE 30 or 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 15 | 9.5 |
| Outlets & connections | ||
| Transfer Switch Ready | No | No |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, and wheel kit | Not available |
| Warranty & identification | ||
| Part Number | 502-3686 | GF12000E-A2 |
| Additional specs | ||
| Summary | 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. | The VEVOR GF12000E-A2 is a tri-fuel generator with a rated wattage of 9000 and a peak wattage of 13500. |
