Generac 40kW Standby Generator
The Generac 40kW Standby Generator delivers dependable backup power for residential and commercial needs. It ensures uninterrupted performance during outages, protecting sensitive electronics, large appliances, and critical systems. With a corrosion-resistant aluminum enclosure, advanced fuel delivery system, and controller selectable fuel option, this model offers flexibility, efficiency, and long-term durability.
Key Benefits of Generac 40kW Standby Generator
- Quiet-Test™ Mode – Runs at a lower speed for five minutes to self-test while saving fuel and reducing noise.
- Cellular Connectivity – Monitor your generator remotely via Mobile Link and Fleet services.
- TruePower™ Technology – Provides less than 5% total harmonic distortion for safe use with sensitive electronics.
- Surge Capacity – Powers large starting loads for homes and businesses.
- Corrosion Resistance – Aluminum enclosure, electro-galvanized steel frame, and stainless-steel exhaust for harsh environments.
- Single-Side Maintenance – All service points accessible from one side for faster, easier upkeep.
- Controller Selectable Fuel – Enables fuel type selection using only the controller for simplified installation.
- Advanced Engine Design – Dual-valve ultra-low pressure fuel system and proprietary engine controls for peak efficiency.
Common Applications
- Full-home backup
- Small business operations
- Office and retail facilities
- Light industrial systems
Packaging
Includes generator unit, aluminum enclosure, installation manual, and warranty documentation. Battery not included.
Product Properties
| Property | Value |
|---|---|
| Fuel Type | Liquid Propane or Natural Gas |
| Running Watts | 40000 |
| Engine Size | 4.5 L |
| Engine Type | 4-cyl In-line |
| Battery Size | Group 27 |
| Battery Type | Flooded Lead Acid |
| Enclosure | Aluminum |
| Weight | 1781 lbs |
| Oil Capacity | 0 qt |
| Controller Type | Evolution |
| Max Continuous Power (NG) | 0 kW |
| Rated Continuous Power (NG) | 0 kW |
| Rated Continuous Power (LP) | 0 kW |
| Main Line Circuit Breaker | 0 A |
| Quiet-Test | Yes |
| Mobile Link | Yes |
For other sizes, see the Generac 38kW Standby Generator. Learn more at Generac.com.
