The Yanmar 4BY3-150 is a 2 L 4-cylinder turbocharger + charge air cooler engine. It powers generator sets from Yanmar, including the 4BY3-180.
Also known as: Yanmar 4BY3-150
Part of the Yanmar 4BY3 engine family — 4 variants share parts & fitment.
| Displacement | 1.995 L |
|---|---|
| Cylinders | 4 |
| Aspiration | Turbocharger + charge air cooler |
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Speed | Low idle speed | 650 - 950 | rpm | adjustable |
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 |
|---|---|---|---|---|---|
| Engine oil | SAE grade #30 | API class: CF or higher | Listed in the document as 'Lub oil specifications' under the KMH41A marine gear data | ||
| Fuel | ISO 8665: 2006 | Density at 15°C = 0.84 g/cm³; Fuel temperature 40°C at the inlet of the fuel injection pump | |||
| Gear oil | API GL5 SAE #80W90 or QuickSilver High Performance Gearlube | For ZT370 Sterndrive | |||
| Gear oil | Mercury High Performance Gearlube | For Mercruiser Bravo 1 Sterndrive |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Yanmar 4BY3-150 has a displacement of 1.995 liters with 4 cylinders.
The Yanmar 4BY3-150 powers 1 generator set(s), including Yanmar 4BY3-180.