The Generac V-8 is a 5.4 L 8-cylinder naturally aspirated engine rated at 1800 rpm, producing up to 45 kW. It powers generator sets from Generac, including the QT045, QT048 and QT055A. It holds 5 L (1.3 gal) of oil and 4 L (1.1 gal) of coolant.
Also known as: GENERAC V-8
| Oil capacity | 5.0 L |
|---|---|
| Coolant capacity | 4.0 L |
| Displacement | 5.4 L |
| Cylinders | 8 |
| Aspiration | Naturally Aspirated |
| Rated speed | 1800 rpm |
| Gross power | 45 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | Standard | — | |||
| Oil filter | Full flow spin-on cartridge | — | |||
| Battery | Group 24F, 525CCA | — | |||
| Belt | Fan and belt guards | — | |||
| Coolant | Closed | 4.0 US gal. | — | ||
| Oil | Gear | 5.0 Quarts | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Pressure | Operating fuel pressure | 5" - 14" | H2O | |
| Speed | Rated synchronous RPM (60 Hz) | 1800 | rpm | 60 Hz |
| Speed | Steady state frequency regulation | ±0.25 | % | |
| Temperature | Operating temperature rise | 120 | °C above 40 °C ambient | rated |
| Voltage | Voltage regulation | ±1 | % |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | Natural gas, propane vapor | Operating fuel pressure 5" - 14" H2O; secondary fuel regulator and fuel shut off solenoid standard |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Generac V-8 engine has an oil capacity of 5.0 liters.
The Generac V-8 has a displacement of 5.4 liters with 8 cylinders.
The Generac V-8 powers 3 generator set(s), including Generac QT045, Generac QT048, Generac QT055A.