Generac 5000 Diesel (6864)
A diesel portable generator rated at 5,000 running and 5,500 starting watts, with a 12-gallon tank and up to 32.4 hours of runtime at half load.
- Running watts
- 5,000 W
- Starting / surge watts
- 5,500 W
- Fuel
- diesel
- Best for
- Home backup for essentials like a fridge, sump pump and freezer, plus jobsite tools.
- Not for
- Quiet campgrounds and RV parks, since it is an open-frame, non-inverter design. Carrying by hand: it weighs 252 lb.
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Specifications
| Running watts | 5,000 W |
|---|---|
| Starting / surge watts | 5,500 W |
| Fuel | diesel |
| Inverter (clean power) | No |
| Runtime at 50% load | 32.4 h |
|---|---|
| Fuel tank | 12 gal |
| Weight | 252 lb |
|---|---|
| Length | 33.1 in |
| Width | 22.5 in |
| Height | 25.6 in |
| CARB compliant | Yes |
|---|
Checked 29 October 2026. Sources: generac.com.