Generac MMG45IF4 — 38 kW Prime Output Mobile Diesel Generator
Reliable Power When & Where You Need It
The Generac MMG45IF4 is a high-performance, mobile diesel generator engineered to deliver dependable prime power in remote or demanding jobsite environments. With a rugged Isuzu turbocharged / aftercooled engine, multiple voltage configurations, and long runtime capacity, it’s ideal for construction, events, backup power, and industrial support applications.
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Key Specifications & Features
| Feature | Specification / Detail |
|---|---|
| Prime Output | 38 kW (≈ 45 kVA) generac.com+2generac.com+2 |
| Standby Output | 44 kW (≈ 55 kVA) absolutegenerators.com+1 |
| Engine | Isuzu 4LE2XAGV01, turbocharged & aftercooled steadypower.com+3ipsigenerators.com+3martinsequipmentllc.com+3 |
| Rated Speed | 1,800 rpm (engine) ipsigenerators.com+1 |
| Fuel Type | Ultra-Low Sulfur Diesel (ULSD) martinsequipmentllc.com+1 |
| Fuel Capacity | (See datasheet) — supports long runtime generac.com+1 |
| Selector Switch | 3-position power tool / output switch for load flexibility generac.com+1 |
| Noise Level | (As per spec sheet) — relatively quiet for its class generac.com |
| Dimensions & Weight | Detailed in product spec sheet (L×W×H, shipping weight) generac.com |
| Voltage / Phase Options | Single and three-phase configurations (e.g. 120/240V single, 120/208V low-wye three-phase) apelectric.com+2generac.com+2 |
| Runtime | Up to ~ 27 hours under certain load conditions nationwidegenerators.com+1 |
| Construction & Chassis | Rugged mobile frame, corrosion-resistant panels, skid or trailer mount options nationwidegenerators.com+2generac.com+2 |
