Best Standby Generators · head-to-head

Generac Guardian 26kW (7291) vs Kohler 26RCAL

A sourced, side-by-side comparison. Generac Guardian 26kW (7291) is cheaper at $7749. Every spec and price links to its source.

Which is better: the Generac Guardian 26kW (7291) or Kohler 26RCAL?

The Generac Guardian 26kW (7291) wins 1 of the 1 specs we compare head to head; the other wins 0. The Generac Guardian 26kW (7291) is the cheaper at $7749. The Generac Guardian 26kW (7291) both leads on specs and costs less — the straightforward pick.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Generac Guardian 26kW (7291) Kohler 26RCAL
US price $7749 $8414
BrandGeneracKohler
Released
Rated output lp (kW) 26 26
Rated output ng (kW) 24
Fuel type dual-fuel dual-fuel
Cooling type air-cooled air-cooled
Transfer switch amps 200 200
Engine displacement cc 999 999
Thd percent 5
Noise level db (A) 57 56
Phase single-phase
Enclosure material aluminum aluminum
Warranty years 5 5
Weight (lb) 518 670

Sources — Generac Guardian 26kW (7291): generac.com (verified 2026-07-11). Kohler 26RCAL: kohlerhomeenergy.rehlko.com (verified 2026-07-11).

What's the difference between the Generac Guardian 26kW (7291) and Kohler 26RCAL?

Where the two actually differ on the specs we track (2 of 12). Matching specs are omitted.

  • Noise level db (A): Generac Guardian 26kW (7291) 57 vs Kohler 26RCAL 56
  • Weight (lb): Generac Guardian 26kW (7291) 518 vs Kohler 26RCAL 670

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