Cummins Onan P2500i vs Yamaha EF2200iS
What is the difference?
The Cummins Onan P2500i has 2.2 kW of running power, 2.5 kW peak. The Yamaha EF2200iS has 1.8 kW of running power, 2.2 kW peak.
The Cummins Onan P2500i has a 1 gal tank, the Yamaha EF2200iS has a 1.2 gal tank.
The Cummins Onan P2500i weighs 46 lb, the Yamaha EF2200iS weighs 55 lb. The Cummins Onan P2500i is easier to carry.
Both have a 3-year warranty.
Specs side by side
| Cummins Onan P2500i | Yamaha EF2200iS | |
|---|---|---|
| Running W | 2200 | 1800 |
| Peak W | 2500 | 2200 |
| Fuel | gasoline | — |
| Tank (gal) | 1 | 1.2 |
| Run time @50 % (h) | 8 | — |
| Noise (dB) | — | — |
| CO shutoff | — | — |
| Weight (lb) | 46 | 55 |
| 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 P2500i or Yamaha EF2200iS?
The Cummins Onan P2500i. More running watts: 2200 W vs 1800 W.
Which is lighter, Cummins Onan P2500i or Yamaha EF2200iS?
The Cummins Onan P2500i. Lighter: 46 lb vs 55 lb.
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