Generac 38kW Standby Generator
The Generac 38kW Standby Generator is designed for dependable and efficient backup power during outages, serving both residential and light commercial needs. It powers large appliances and sensitive electronics without interruption, delivering quiet performance and superior reliability. The aluminum enclosure provides excellent corrosion resistance, and the unit operates on liquid propane or natural gas to suit your installation requirements.
Key Benefits of Generac 38kW Standby Generator
- Quiet-Test™ Mode – Operates at a reduced speed for five minutes to self-test while saving fuel.
- Cellular Connectivity – Enables remote monitoring through Mobile Link and Fleet services.
- TruePower™ Technology – Provides less than 5% total harmonic distortion for safe use with sensitive electronics.
- Surge Capacity – Handles large starting loads with ease.
- Corrosion Resistance – Features an aluminum enclosure and stainless steel exhaust for durability in harsh conditions.
- Compact Footprint – Saves space and integrates easily into landscaping.
- Single-Side Maintenance – Simplifies service with all maintenance points accessible from one side.
- Engineered for Efficiency – Dual-valve ultra-low pressure fuel system and proprietary controls for optimal performance in all climates.
Common Applications
- Whole-home residential backup
- Light commercial facilities
- Office and retail critical systems
- Small-scale industrial backup
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 | 38000 |
| Engine Size | 2.4 L |
| Engine Type | 4-cyl In-line |
| Battery Size | Group 26 |
| Battery Type | Flooded Lead Acid |
| Enclosure | Aluminum |
| Weight | 1235 lbs |
| Oil Capacity | 4 qt |
| Controller Type | Evolution |
| Max Continuous Power (NG) | 27 kW |
| Rated Continuous Power (NG) | 104 kW |
| Rated Continuous Power (LP) | 104 kW |
| Main Line Circuit Breaker | 125 A |
| Quiet-Test | Yes |
| Mobile Link | Yes |
For other available capacities, see the Generac 32kW Standby Generator. Learn more at Generac.com.




