Specifications
| Fuel | Natural Gas, Propane Vapor |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 40 kW |
| Standby kVA | 50 |
| Prime power | 33 kW |
| Emissions | EPA Certified Stationary Emergency |
| Controller | H-100 |
| Oil capacity | 5.7 L |
| Alternator | Generac 390 mm (4-pole, Class H insulation) |
| Voltage options | 120/240 V, 120/208 V, 277/480 V, 346/600 V |
| Power factor | 0.8 |
| Battery group | 27F |
| Battery cranking | 525/700/925CCA CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 21.9 L |
| Max ambient | 48.89 °C |
| Dimensions (L×W×H) | 1930×950×1176 mm |
| Dry weight | 714 kg |
Engine
| Oil capacity | 5.68 L |
|---|---|
| Coolant capacity | 11.36 L |
| Displacement | 4.2 L |
| Aspiration | Naturally Aspirated |
| Rated speed | 3600 rpm |
Maintenance & consumables
for the Generac V6| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Full flow, cartridge | — | find | ||
| Oil | Gear | — |
Common questions
What is the power rating of the Generac SG040?
The Generac SG040 is rated 40 kW standby (50.0 kVA).
What engine does the Generac SG040 use?
The Generac SG040 is powered by the Generac V6 engine.
What fuel does the Generac SG040 use?
The Generac SG040 runs on Natural Gas, Propane Vapor.
What is the oil capacity of the Generac SG040?
The Generac V6 engine in the Generac SG040 has an oil capacity of 5.68 liters.
What alternator does the Generac SG040 use?
The Generac SG040 uses a Generac 390 mm alternator. It has 4 poles. Insulation class H.
Parts
3| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 005632-0 | Cold Weather Kit | Service part / kit | PartsGeek | |
| 006204-0 | Extreme Cold Weather Kit | Service part / kit | PartsGeek | |
| 006205-0 | Scheduled Maintenance Kit | Service part / kit | PartsGeek |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 100% | ||
| Standby | 25% | 21.24 | |
| Standby | 50% | 36.28 | |
| Standby | 75% | 48.88 | |
| Standby | 100% |
Available documents
Brochure — 0166950SBY (Generac)Spec sheet — 0169120SBY (Generac)Spec sheet — 0172360SBY (Generac)Spec sheet — 0175890SBY (Generac)Spec sheet — 0193700SBY (Generac)Spec sheet — 0k4266-b-sg040-5-4l-60hz (Generac)Spec sheet — Generac 40kW SG040 Gas Generator 5.4L (Generac)