Generac 7258 14kW Cellular Standby Generator
Ships out in 2-3 Business Days
Have questions? 1-888-321-6765 / info@truesteadsupply.com
Ships out in 2-3 Business Days
Have questions? 1-888-321-6765 / info@truesteadsupply.com
The Generac 7258 is a Next Generation air-cooled home standby generator designed for automatic residential backup power when utility service is interrupted. This model is rated as a 14kW standby generator for liquid propane or natural gas applications. It includes standard cellular connectivity with Mobile Link monitoring, Electronic Fuel & Ignition Control, oil level monitoring, and an advanced controller for improved system visibility. The 7258 is a generator-only configuration and does not include a transfer switch in the product information provided, making transfer equipment selection an important part of the installation plan. Final backup coverage should be confirmed by a qualified installer based on the home’s electrical loads, fuel setup, transfer switch selection, and local code requirements.
The Generac 7258 is built as a 14kW air-cooled standby generator for residential backup applications. It should be sized around the home’s selected backup loads and paired with compatible transfer equipment selected by a qualified generator installer.
This standby generator supports liquid propane or natural gas, giving homeowners fuel flexibility based on property setup and local utility availability. Because actual backup coverage depends on connected loads and fuel setup, final sizing should be confirmed before installation.
Standard cellular connectivity supports remote generator monitoring through Generac’s connected monitoring platform. The Next Generation platform also includes advanced diagnostic visibility, oil level monitoring through Mobile Link, and fuel pressure visibility while the engine is running.
The Generac 7258 belongs to Generac’s Next Generation air-cooled standby generator lineup. Its updated platform includes Electronic Fuel & Ignition Control, maintenance-free hydraulic lifters, easy-access enclosure panels, and a sloped roof design intended to reduce water, dirt, and ice buildup.

The Generac 7258 is designed for homeowners planning automatic standby backup power with a generator-only configuration. Its 14kW rating, LP or natural gas fuel support, and cellular monitoring make it a practical option for residential properties when paired with properly selected transfer equipment.
With Electronic Fuel & Ignition Control, oil level monitoring, and advanced remote diagnostics, this Generac standby generator supports clearer backup readiness visibility. Final installation should be handled by a qualified professional to confirm transfer switch compatibility, load requirements, fuel setup, and code compliance.

Need help choosing the right backup generator for your property?
Contact TrueStead Supply for generator sizing guidance, transfer switch support, and quote assistance.
✔ Backup power guidance ✔ Transfer switch support ✔ Home and property-ready options
Contact Us for a Quote| Brand | Generac |
| Series | Next Generation Air-Cooled Standby |
| Model | 7258 |
| Model Number | G0072580 |
| Product Type | Air-Cooled Home Standby Generator |
| Generator Type | Automatic Residential Standby Generator |
| Rated Power Output | 14kW |
| Fuel Type | Liquid Propane or Natural Gas |
| Voltage | 120/240V |
| Phase | Single Phase |
| Rated AC Frequency | 60 Hz |
| Transfer Switch Included | Not included in the provided product data |
| Connectivity / Monitoring | Standard Cellular Connectivity with Mobile Link Monitoring |
| Controller | Advanced Next Generation Controller |
| Electronic Fuel & Ignition Control | Included |
| Oil Level Monitoring | Supported via Mobile Link App |
| Fuel Pressure Sensor | Included |
| Compatible Systems | ecobee by Generac Thermostats and Generac PWRcell Battery Systems |
| Installation Type | Permanent Outdoor Standby Installation |
| Warranty | 5-Year Limited Warranty |
| Manufacturing Note | Engineered and assembled in the USA using domestic and foreign parts |