Description
Description
- Better efficiency – On-demand power uses less fuel than other popular generator models both while running and at rest
- Dual Fuel – 2 types applicable in one unit: Gasoline or Propane
- Emergency backup recoil start gives you further peace of mind when you are using the Flex Power 4000i – No other generator has this capability
- Multi-pole PM brushless alternator incorporates a digital voltage regulator.
- Offers stepped-up power-on-demand, eliminating issues of overload. The motor slows down when you reduce load and will speed up when you resume a higher load.
- Compared to the competition: The Flex Power™ 4000i is lighter, more fuel efficient, lower in harmonic distortion, quieter, has a higher base load, and has many more features.
- 100% replacement for Onan installed generators – Fits in the same space as Onan and other competitors.
- The Flex Power™ 4000i includes many safety features that go above and beyond industry standards. Including a digital valve controller that offers auto shut-off for fire prevention.
- Consistent output – Less distortion (3% compared to 17% in competitive models) allows you to power sensitive devices like laptops, TVs, and gaming counsels, without worrying about overload
- Softer sound – Consistent output allows for a quieter run without loud rev cycles
- Significantly fewer emissions when run with propane – up to 10x less output
- Digital hour reading – Easily measure running time for maintenance
- Remote start capability – wiring harness for connecting to controls within the RV for remote starting
- Heat sensor – Built-in protection from overheating and over-revving
- Exceeds U.S. Forest Services (USFS), CSA, RVIA, and EPA emission requirements.
- 3-year limited warranty








