The Cummins/Onan B43 gasoline is a 0.78 L 2-cylinder sidedraft carburetor engine rated at 1800 rpm. It powers generator sets from Cummins/Onan, including the Commercial Emerald 4500 GenSet. It holds 3.3 L (0.9 gal) of oil.
Also known as: Onan B43 gasoline engine
| Oil capacity | 3.3 L |
|---|---|
| Displacement | 0.7818 L |
| Cylinders | 2 |
| Aspiration | sidedraft carburetor |
| Rated speed | 1800 rpm |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Replaceable dry element with foam wrapper | — | |||
| Fuel filter | N/A | — | |||
| Oil filter | Spin-on full flow lube oil filter | — | |||
| Battery | 12 V 420 cold cranking amps at 0oF (-18oC) (part #416-0579) | 416-0579 | Amazon eBay | ||
| Belt | N/A | — | |||
| Coolant | N/A | — | |||
| Oil | 3.5 qt (3.3 L), including filter | 3.5 qt | — | ||
| Spark plug | N/A | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan B43 gasoline engine has an oil capacity of 3.3 liters.
The Cummins/Onan B43 gasoline has a displacement of 0.7818 liters with 2 cylinders.
The Cummins/Onan B43 gasoline powers 1 generator set(s), including Cummins/Onan Commercial Emerald 4500 GenSet.