Specifications
| Standby power | 360 kW |
|---|---|
| Emissions | Tier 4i |
| Oil capacity | 91.0 L |
| Alternator | 35 amps |
| Voltage options | 24 V |
| Dimensions (L×W×H) | 1528×1257×1107 mm |
| Dry weight | 1436 kg |
Engine
| Oil capacity | 83.0 L |
|---|---|
| Coolant capacity | 52.6 L |
| Displacement | 15.0 L |
| Aspiration | turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan QSX15| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 1500 hr | find | ||
| Fuel filter | 100-120 mesh or equivalent (approximately 150 microns nominal) | — | 6000 hr | find | |
| Oil filter | Spin-on type | — | 24000 hr | find | |
| Belt | — | 250 hr | find | ||
| Coolant | 90.8 l | — | 540 hr | ||
| Coolant filter | Replace | — | 1500 hr | find | |
| Oil | 91.0 l | — | 24000 hr |
Common questions
What is the power rating of the Cummins/Onan QSX15-G15?
The Cummins/Onan QSX15-G15 is rated 360 kW standby.
What engine does the Cummins/Onan QSX15-G15 use?
The Cummins/Onan QSX15-G15 is powered by the Cummins/Onan QSX15 engine.
What is the oil capacity of the Cummins/Onan QSX15-G15?
The Cummins/Onan QSX15 engine in the Cummins/Onan QSX15-G15 has an oil capacity of 83.0 liters.
What alternator does the Cummins/Onan QSX15-G15 use?
The Cummins/Onan QSX15-G15 uses a 35 amps alternator.
Parts
11| Part # | Description | Qty | System | |
|---|---|---|---|---|
| AF25544 | Recommended air cleaner element - (heavy duty) primary element | Air filter | Amazon eBay $350.00 PartsGeek | |
| AF25545 | Recommended air cleaner element - (heavy duty) secondary element | Air filter | Amazon eBay $350.00 PartsGeek | |
| M-4376220 | Upper Gasket Set | Gasket | PartsGeek | |
| M-4376221 | Lower Gasket Set | Gasket | PartsGeek | |
| M-5473087 | Piston Kit | Piston kit | PartsGeek | |
| M-5484414 | Piston Pin | Piston pin | PartsGeek | |
| 3163156 | Service cable for InPower™ | Service part / kit | PartsGeek | |
| 3822735 | Plastic bead media | Service part / kit | PartsGeek | |
| 3886301 | InPower™ electronic service tool | Service part / kit | PartsGeek | |
| TB3-5 | Generator Set Control Panel Terminal Block | 1 | Service part / kit | PartsGeek |
| TB3-6 | Generator Set Control Panel Terminal Block | 1 | Service part / kit | PartsGeek |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Base | 25% | 94.0 | 18.1 |
| Base | 50% | 80.0 | 21.0 |
| Base | 75% | 88.0 | 23.4 |
| Prime | 100% | 116.0 | 30.6 |
| Standby | 100% | 96.0 | 25.4 |
Available documents
Spec sheet — QSX15-G15 (Cummins/Onan)