Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
| Specification | DuroMax XP5500HX | Cat RP6500 E |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 4500 W | Winner: Winner: 6500 W |
| Starting watts | 5500 W | Winner: Winner: 8125 W |
| Noise (lower limit) | Winner: Winner: 69 dB | 0 dB |
| Weight | Winner: Winner: 128 lbs | 202 lbs |
| Run time @50% load | 9 h | Winner: Winner: 12 h |
| Run time @25% load | 19 h | Not available |
| Fuel tank | 4 gal | 7.9 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 23 x 25 x 22 | 32.9 x 27.4 x 24.7 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 210 cc OHV 4-stroke, cast iron sleeve | 420 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric |
| Warranty | ||
| Warranty | 5 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 4500 W | 6500 W |
| Starting watts | 5500 W | 8125 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 | 12 h |
| Run time @25% load | 19 h | Not available |
| Propane | Not available | Not available |
| Running watts | 4275 W | Not available |
| Starting watts | 5225 W | Not available |
| 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 | 8 h | Not available |
| Run time @25% load | 15 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 811640016203 | 815683020067 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 4500 | 6500 |
| Running Watts (Propane) | 4275 | Not available |
| Starting Watts (Gasoline) | 5500 | 8125 |
| Starting Watts (Propane) | 5225 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 12 |
| Runtime @ 50% Load (Propane) | 8 | Not available |
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 25% Load (Propane) | 15 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 210 cc OHV 4-stroke, cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 210 | 420 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Alternator Winding Material | Copper windings | Not available |
| Engine Oil Type | 10W-30 | SAE 30 or 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 12 |
| Runtime @ 50% Load (Propane) | 8 | Not available |
| 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 | No |
| Included equipment | ||
| Starting Components | Not available | Recoil, Electric |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Oil, funnel, tool kit, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 5 | Not available |
| Part Number | Not available | 502-3688 |
| Additional specs | ||
| Summary | The DuroMax XP5500HX is a 4,500-watt dual-fuel generator built for homeowners, job sites, and outdoor events. Running on either gasoline or propane, it delivers 5,500 peak watts at startup, enough to power refrigerators, air conditioning units, power tools, and multiple devices simultaneously. The dual-fuel design eliminates fuel sourcing constraints. At 25% load on gasoline, the unit runs for 19 hours before refueling, stretching a single tank across an entire workday or overnight camping trip. This runtime advantage makes it practical for extended outages or remote projects where frequent refueling would interrupt operations. | The Cat RP6500 E is a 6500-watt gasoline generator built for residential backup and light commercial work. Its 8125-watt peak capacity means it can start large tools and appliances that draw high inrush current, then sustain 6500 watts of continuous power for multiple devices simultaneously. A 7.9-gallon fuel tank delivers 12 hours of runtime at 50% load, which translates to roughly one full workday or overnight backup without refueling. The gasoline engine is straightforward to maintain and refuel anywhere, making this unit practical for job sites, outdoor events, and emergency home power. |