The Cummins/Onan QSJ999G is a 1 L 2-cylinder naturally aspirated engine rated at 3600 rpm. It powers generator sets from Cummins/Onan, including the RS13A, RS13A C13N6H, RS17A and RS17A C17N6H.
Also known as: Cummins QSJ999G
| Displacement | 1.0 L |
|---|---|
| Cylinders | 2 |
| Aspiration | Naturally aspirated |
| Rated speed | 3600 rpm |
How to read your Cummins/Onan engine serial & model number →
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Pressure | Fuel supply pressure (LP) | 7-11 | in H2O | |
| Pressure | Fuel supply pressure (Natural gas) | 5-11 | in H2O |
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 | Automotive-style lubrication system | -7°C to 50°C | 2.3 L | Oil cooler and spin-on filter included |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 115/230 | 1 | Split phase | Available on RS14AF model at 50 Hz | |
| 120/240 | 1 | Split phase | Available on RS20A and RS20AC models at 60 Hz |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Cummins/Onan QSJ999G has a displacement of 1.0 liters with 2 cylinders.
The Cummins/Onan QSJ999G powers 7 generator set(s), including Cummins/Onan RS13A, Cummins/Onan RS13A C13N6H, Cummins/Onan RS17A, Cummins/Onan RS17A C17N6H, Cummins/Onan RS20A.