Briggs and Stratton 12 kW Fortress generator


Back-up power for small to medium sized homes. This generator features a 10-year limited warranty including parts, labor and travel for all 10 years, this generator will be ready to run when it’s needed most.

Key features:

  • Durable Enclosure
  • Flexible Placement
  • Superior Customer Support
  • Financing Solutions
  • 10 year parts and labor


Model Number 040592
Running Watts (NG)* 18,000
Engine Series VanguardTM
Operation Fully Automatic
Running Amps (LP) 83.3
Alternator Type Computer Friendly
NG Fuel Consumption** 50% Load = 187 ft3 /hr
Battery/Battery Charger Yes
Diagnostic Alerts with Remote System Status Low Oil Shutdown, Engine Does Not Start, Low Frequency, Engine Overspeed, Low Voltage, Low Battery Voltage, Oil Temp High, Transfer Switch Fault
Length (in) 49.2
Height (in) 30.6
Warranty (Product)*** 10 Years Parts, Labor, & Travel Limited Warranty
Running Watts (LP)* 20,000
Engine Brand Briggs & Stratton
Engine Displacement (cc) 993
Voltage (V) 120/240V AC, Single Phase
Running Amps (NG) 75
LP Fuel Consumption** 50% Load = 2.31 gal/hr
Weekly Exerciser Yes
Overcrank Protection Yes
Phase 1-Phase
Width (in) 31.7
Weight (lbs) 443

*NG = Natural Gas; LP = Liquid Propane. **Fuel consumption rates are estimated based on normal operating conditions at 1/2 load. Generator operation may be greatly affected by elevation and the cycling operation of multiple electrical appliances - fuel flow rates may vary depending on these factors. ***See Operator's Manual or for complete warranty details.

Pricing: Please call 877.359.2151 to speak with a qualified representative. 

Service: Service is key to maintaining the longevity of your equipment. Please call 973.366.3100 to schedule a service call. With years of experience, our certified technicians are all licensed and bonded. Our local customer service teams and technicians have everything they need and are always available to help you, whenever you need them, 24/7, all year.

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