Cummins Onan P4500i vs WEN DF480iX
What is the difference?
The Cummins Onan P4500i has 3.7 kW of running power, 4.5 kW peak. The WEN DF480iX has 4 kW of running power, 4.8 kW peak.
The Cummins Onan P4500i runs on gasoline, the WEN DF480iX is dual-fuel.
The Cummins Onan P4500i runs 15 h at half load, the WEN DF480iX runs 7 h at half load. The Cummins Onan P4500i runs longer on a tank.
The Cummins Onan P4500i has a 3.4 gal tank, the WEN DF480iX has a 1.9 gal tank.
Both have a 3-year warranty.
Both have 120 V AC output.
Specs side by side
| Cummins Onan P4500i | WEN DF480iX | |
|---|---|---|
| Running W | 3700 | 4000 |
| Peak W | 4500 | 4800 |
| Fuel | gasoline | dual-fuel |
| Tank (gal) | 3.4 | 1.9 |
| Run time @50 % (h) | 15 | 7 |
| Noise (dB) | — | 62 |
| CO shutoff | — | yes |
| Weight (lb) | 97 | — |
| Warranty (yr) | 3 | 3 |
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Specs as read from manufacturer pages on 2026-10-31 / 2026-10-25. Specs one maker does not list are left out of the comparison. Sponsored links; we may earn a commission.
Common questions
Which has more running watts, Cummins Onan P4500i or WEN DF480iX?
The WEN DF480iX. More running watts: 4000 W vs 3700 W.
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