Generac GP6500 COsense vs Predator 9000 (59206)
The Predator 9000 (59206) is the more powerful unit: 7,250 running watts against 6,500 — about 10% more capacity for the Predator 9000 (59206). The Predator 9000 (59206) runs longer at half load — 13 hours on its 8-gallon tank vs 11.5 hours.
| Generac GP6500 COsense | Predator 9000 (59206) | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline | gasoline |
| Running watts (gas / LP for standby) | 6500 W | 7250 W |
| Starting watts (gas) | 8125 W | 9000 W |
| Runtime at 50% load (gas) | 11.5 h | 13 h |
| Fuel tank | 7.9 gal | 8 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | 30 A | — |
| Outlets | — | 4x GFCI 5-20R duplex, L14-30R, L5-30R, 12V DC |
| Start type | recoil | electric |
| CO safety shutoff | Yes | Yes |
| Engine displacement | 389 cc | 420 cc |
| Weight | 172 lb | 195 lb |
Frequently asked questions
Which is more powerful, the Generac GP6500 COsense or the Predator 9000 (59206)?
The Predator 9000 (59206), at 7,250 running watts on its best fuel versus 6,500 W. Remember that dual-fuel and natural-gas ratings are lower than gasoline ratings — the comparison table shows the published per-fuel figures.
Which costs less to run, the Generac GP6500 COsense or the Predator 9000 (59206)?
Estimated fuel for 24 hours at about 50% load: $53 on gasoline for the Generac GP6500 COsense vs $47 on gasoline for the Predator 9000 (59206), at national average prices. These are spec-sheet-derived estimates — the assumptions are on the methodology page, and different fuels make this a cost comparison, not an efficiency ranking.
Where do these specifications come from?
Every record on BackupAtlas is hand-curated from manufacturer documentation and spec sheets, and each generator page links to its source document.