Briggs & Stratton 26kW Generator PowerProtect Standby Series | 40658

Availability: In Stock
  • $3,182.00

  • Ex Tax: $3,182.00

Briggs & Stratton 26kW Standby Generator

NEW Briggs & Stratton 26kW Standby Generator, the most powerful air-cooled standby generator available and the longest, most comprehensive standard warranty in the industry. Briggs and Stratton’s PowerProtect Series has a sleek and appealing design with tool-less access to all major components for routine maintenance.

More powerful than the competition, Briggs and Stratton rates the air-cooled standby at 26kW for LP Propane and 24kW for Natural Gas. PowerProtect Series generators install just 18 inches from your home, taking up less space and fitting into your landscape. The Briggs & Stratton 40658 is sold without a transfer switch—ideal for replacement or upgrade with an existing compatible automatic transfer switch.

The 26kW Briggs and Stratton Generator has the longest, most comprehensive warranty of any air-cooled standby. A 6-Year* Limited Warranty covers parts, labor, and travel for the entire 6-year term. Made in the USA with commercial-grade Vanguard engines that lead the industry with rugged and reliable operation. With a 200-Amp Automatic Transfer Switch (not included), the 26kW generator keeps your entire home supplied with power for the duration of any power outage.

Briggs and Stratton 26kW Generator

The Briggs and Stratton 26kW Generator has a 993 cc V-Twin OHV Vanguard commercial-grade engine equipped with Low Oil Shutdown to prevent engine damage. This standby generator set also has a high temperature shutdown, LED display, and a built-in battery charger. The aluminum enclosure withstands hurricane-force winds up to 186 MPH. This generator is compatible with the Symphony II and Amplify Power Management systems to ensure your home and family have the power they need when they need it.

26kW Standby Generator 40658 Ratings

Use Rating

Standby Only—Utility Grid Connection Required


120/240 Volts Single Phase

Running Watts

26kW LP Propane / 24kW Natural Gas

Running Amps

108.3 Amps LP Propane / 100 Amps Natural Gas

Main Circuit Breaker

125 Amps

Normal Operating Sound

65 dBA Normal Operation / 63 dBA Low Idle Mode

Frequency Regulation

±1.0 Percent

Engine Speed

3600 RPM


26kW Briggs and Stratton Generator

The 26kW Briggs and Stratton Generator restores power to your home during utility outages. It works automatically in any weather, day or night. Whether you’re at home, away on vacation, or sleeping in your bed, the 26kW generator senses a power outage. Within seconds, the generator starts and signals the automatic transfer switch. The ATS switches from utility to generator power. A compatible power management system allows you to prioritize the most important heavy loads.

Where temperatures fall below 30 degrees Fahrenheit, install a battery warmer (sold separately) and oil warmer (sold separely) to ensure fast, easy starts. In below freezing temperatures, a warm battery provides more power for starting the generator. Warm oil lubricates better, which prolongs engine life and makes it easier to start.

Briggs and Stratton 26kW Generator installations require the use of a Carbon Monoxide Detector inside the home to guard against CO Poisoning.

This Briggs & Stratton 26kW Standby Generator is NOT rated for Prime Power Applications.

Battery Not included—12 Volt, Group BCI 26 or 51, 540 Cold Cranking Amps

Enclosure Warranty

  • 1-Year Parts/Labor/Travel covers surface rust and corrosion.
  • 3-Year Parts/Labor/Travel covers enclosure rust through.

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