Stack / GP6500
Generac GP6500 COsense
Updated · 16 Sep 2026 · Sheet checked · 16 Sep 2026
It depends — 240 V / 6.5 kW open frame
Real 6.5 kW running and 120/240 V. Also loud, heavy, and conventional — not a quiet inverter.
6,500 W
8,125 W
120/240 V
389 cc
Will run
- Interlock / transfer-switch work when an electrician sizes the kit
- Well or dryer circuits you measured
- Longer 25% runtime claims (~16.5 h) if noise is acceptable
Skip, or measure first
- Quiet camp or neighbor-sensitive overnight
- Anyone expecting inverter THD / suitcase weight
- Treating PowerRush surge marketing as continuous headroom
What it is
Model family 7680 / 7683 (49/50-state); G0076803 appears on some retail packs. COsense CO shutdown, PowerRush starting assist, bonded neutral, GFCI duplexes, L14-30R, 7.9 gal tank, never-flat wheels. Sheet: 6,500 running / 8,125 starting, 54.2 / 27.1 A. Recoil. Not our bench.
Verdict
Buy when you need open-frame 6.5 kW and 240 V on purpose. Skip if you wanted a quiet inverter or believed the surge badge was the all-night number.