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- Cummins Onan P5000iDF EFI
- Genmax GM5500XiD
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 | Cummins Onan P5000iDF EFI | Genmax GM5500XiD |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | Yes | Yes |
| Running watts | 3900 W | Winner: Winner: 4000 W |
| Starting watts | 5000 W | Winner: Winner: 5500 W |
| Noise (lower limit) | Winner: Winner: 52 dB | 68 dB |
| Weight | 108 lbs | Winner: Winner: 68 lbs |
| Run time @50% load | Winner: Winner: 13 h | Not available |
| Run time @25% load | 16.8 h | 11 h |
| Fuel tank | 3.4 gal | 2.2 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 25.1 x 18.1 x 21.2 | 23.1 x 18.5 x 17.8 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 5 | 5 |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | ≤3% % |
| Engine | ||
| Engine | 224 cc OHV 4-stroke | 160 cc OHV 4-stroke engine. |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil |
| Warranty | ||
| Warranty | 3 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3900 W | 4000 W |
| Starting watts | 5000 W | 5500 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 | 13 h | 8 h |
| Run time @25% load | 16.8 h | 11 h |
| Propane | Not available | Not available |
| Running watts | 3500 W | 3600 W |
| Starting watts | 4500 W | 4950 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 | 12.5 h |
| Run time @25% load | 20 h | 17.5 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 | CARB, EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Floating |
| UPC | Not available | 860013299040 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3900 | 4000 |
| Running Watts (Propane) | 3500 | 3600 |
| Starting Watts (Gasoline) | 5000 | 5500 |
| Starting Watts (Propane) | 4500 | 4950 |
| Runtime @ 50% Load (Gasoline) | 13 | 8 |
| Runtime @ 50% Load (Propane) | Not available | 12.5 |
| Runtime @ 25% Load (Gasoline) | 16.8 | 11 |
| Runtime @ 25% Load (Propane) | 20 | 17.5 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 224 cc OHV 4-stroke | OHV 4-stroke engine |
| Engine Displacement | 224 | 160 |
| Engine Oil Type | Not available | SAE 10W/30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 16.8 | 11 |
| Runtime @ 50% Load (Gasoline) | 13 | 8 |
| Runtime @ 50% Load (Propane) | Not available | 12.5 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection; CO monitoring | Low oil and overload protection |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Included Accessories | Not available | Oil, funnel, tool kit, propane hose, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | Not available |
| Part Number | A075C500 | Not available |
| Additional specs | ||
| Summary | The Cummins Onan P5000iDF EFI is a 3900-watt dual-fuel inverter generator built for RV owners, campers, and homeowners who need reliable portable power without excessive noise. Its 5000-watt peak capacity handles startup demands of air conditioners, power tools, and multiple appliances simultaneously. The dual-fuel design means you can run gasoline when convenient and switch to propane for longer storage life or when gasoline is unavailable. At 52 dBA, this unit operates as quietly as normal conversation, making it suitable for campgrounds and residential neighborhoods where noise restrictions apply. The inverter technology produces clean power with only 3 percent THD, protecting laptops, smartphones, and sensitive electronics from voltage spikes that damage circuits. | The Genmax GM5500XiD is a 4000-watt dual-fuel inverter generator that handles essential household loads, power tools, and RV systems simultaneously. Running on gasoline or propane, it delivers clean 3% THD output safe for laptops and televisions. At 68 pounds with a wheel kit included, this unit moves easily between storage and deployment. |
- Most PowerfulGenmax GM5500XiD4000W running
- QuietestCummins Onan P5000iDF EFI52 dB
- Longest RuntimeCummins Onan P5000iDF EFI13h at 50% load
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Cummins Onan P5000iDF EFI
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