Fortress by Briggs & Stratton 12kW Standby


Don’t be left in the dark. Backup power is more affordable than ever with the smaller, sleeker 10 kW1 generator system. Designed to keep your home running during an outage, this system is ideal for small to medium-sized homes.

Thanks to Symphony® II Power Management System, a smaller home generator system by Briggs & Stratton can meet all your needs and save you money in the process.

Designed to weather the elements, the system’s enclosure is made from automotive-grade Galvanneal steel to resist rust. Its advanced powder coat paint process results in years of protection against chips and abrasions.


  • 12kW
  • 11kW – 12kW Running Watts (NG – LP)
  • 570cc Vanguard Engine
  • 3600rpm
  • 50% load = 1.19 gal/hr
  • 41.7 Running Amps

Model: 40545