GenMax GM5500i vs WEN DF480iX
What is the difference?
The GenMax GM5500i has 5 kW of running power, 5.5 kW peak. The WEN DF480iX has 4 kW of running power, 4.8 kW peak.
The GenMax GM5500i runs on gasoline, the WEN DF480iX is dual-fuel.
The GenMax GM5500i runs 8.5 h at half load, the WEN DF480iX runs 7 h at half load. The GenMax GM5500i runs longer on a tank.
The GenMax GM5500i has a 3.6 gal tank, the WEN DF480iX has a 1.9 gal tank.
Specs side by side
| GenMax GM5500i | WEN DF480iX | |
|---|---|---|
| Running W | 5000 | 4000 |
| Peak W | 5500 | 4800 |
| Fuel | gasoline | dual-fuel |
| Tank (gal) | 3.6 | 1.9 |
| Run time @50 % (h) | 8.5 | 7 |
| Noise (dB) | — | 62 |
| CO shutoff | — | yes |
| Weight (lb) | — | — |
| Warranty (yr) | — | 3 |
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Specs as read from manufacturer pages on 2026-11-03 / 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, GenMax GM5500i or WEN DF480iX?
The GenMax GM5500i. More running watts: 5000 W vs 4000 W.

