Generac Home Standby Generator Model Numbers: Complete Reference
Generac assigns unique model numbers to every generator configuration, and understanding these numbers is essential for ordering the correct unit. The most common source of confusion is the difference between generator-only models and generator-plus-transfer-switch kits. This guide decodes every current Generac model in the 22kW to 28kW residential range so you know exactly what you are purchasing.
22kW Models
The Generac Model 7260 is the 22kW home standby generator sold as the generator unit only. It does not include a transfer switch. Choose this model if you already own a compatible transfer switch or are purchasing one separately.
The Generac Model 7325 is the 22kW home standby generator bundled with a factory-matched 200-amp automatic transfer switch. This is the complete system for first-time buyers. One order, one delivery, guaranteed compatibility.
24kW Models
The Generac Model 7261 is the 24kW generator only, no transfer switch included. The Generac Model 7326 is the 24kW generator with 200A ATS kit. The 24kW uses the same G-Force engine as the 22kW but is tuned for 2,000 watts of additional output, providing extra headroom for homes with higher simultaneous loads.
26kW Models
The Generac Model 7327 is the 26kW generator only. The Generac Model 7328 is the 26kW generator with 200A ATS kit. The 26kW is Generac largest air-cooled residential generator using the G-Force 999cc engine and delivers whole-house coverage for homes up to approximately 3,500 square feet.
28kW Models
The Generac Model 7282 is the 28kW generator only. The Generac Model 7329 is the 28kW generator with 200A ATS kit. The 28kW is the flagship of the Generac Guardian residential lineup, providing the maximum air-cooled output available for large homes, all-electric properties, and installations where maximum capacity margin is desired.
Quick Reference Table
For quick identification: Model 7260 is 22kW, no ATS. Model 7325 is 22kW with ATS. Model 7261 is 24kW, no ATS. Model 7326 is 24kW with ATS. Model 7327 is 26kW, no ATS. Model 7328 is 26kW with ATS. Model 7282 is 28kW, no ATS. Model 7329 is 28kW with ATS. The pattern: odd-numbered models in the 7320 series include the ATS kit.
All Models Share These Features
Every model in the 22kW to 28kW range is part of Generac Next Generation series and shares common features. All operate on dual fuel (liquid propane or natural gas). All use the G-Force air-cooled engine designed specifically for standby applications. All feature True Power Technology for clean, stable electrical output safe for sensitive electronics. All include the Evolution controller with LCD display and self-diagnostics. All current production units include built-in WiFi with Mobile Link remote monitoring. All carry a 5-year limited manufacturer warranty with extended options available.
How to Order the Right Model
If you are a first-time buyer with no existing transfer switch, order the model with ATS (7325, 7326, 7328, or 7329). If you already have a working Generac-compatible 200A ATS, order the generator-only model (7260, 7261, 7327, or 7282). If you are unsure which model is correct for your situation, call (800) 674-9019 and we will confirm the right one based on your home details. All Generac models are in stock and available at our Generac home standby generators collection. Add to cart to see pricing on MAP-protected products.