Specifications
| Fuel | Natural Gas or L.P. Vapor |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 40 kW |
| Oil capacity | 4.55 L |
| Voltage options | 120/240 V |
| Phase | 1 |
| Power factor | 1.0 |
| Max ambient | 120 °C |
Engine
| Oil capacity | 4.55 L |
|---|---|
| Coolant capacity | 5.6 L |
| Displacement | 3.9 L |
| Aspiration | Naturally Aspirated |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Generac 3.9 GN| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Full flow, cartridge | — | |||
| Oil | Gear | — |
Common questions
How many kW is the Generac 3.9GN?
The Generac 3.9GN is rated 40 kW standby.
What engine is in the Generac 3.9GN?
The Generac 3.9GN is powered by the Generac 3.9 GN engine.
What fuel does the Generac 3.9GN use?
The Generac 3.9GN runs on Natural Gas or L.P. Vapor.
How much oil does the Generac 3.9GN take?
The Generac 3.9 GN engine in the Generac 3.9GN has an oil capacity of 4.55 liters.
What is the cooling system capacity of the Generac 3.9GN?
The Generac 3.9GN cooling system holds 5.6 liters (1.5 US gallons) for the engine, per the manufacturer specification sheet.
What voltages is the Generac 3.9GN available in?
The Generac 3.9GN is offered in 120/240 V, 1-phase.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 25% | 132.0 | 57.0 |
| Standby | 50% | 264.0 | 113.0 |
| Standby | 75% | 396.0 | 170.0 |
| Standby | 100% | 504.0 | 216.0 |
Available documents
Spec sheet — 01693200EW (Generac)
This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.