Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Battery | 2 Group 4D (CORE) | — | |||
| Coolant | -35 | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan QSL9-G7 NR3 is an engine. It powers generator sets from Cummins/Onan, including the DQDAB.
Also known as: CUMMINS QSL9-G7 NR3
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Battery | 2 Group 4D (CORE) | — | |||
| Coolant | -35 | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | Number 2 diesel fuel | Direct injection fuel system; fuel filter (dual element with water separator) and automatic electric fuel shutoff |
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 QSL9-G7 NR3 powers 1 generator set(s), including Cummins/Onan DQDAB.