Specifications
| Standby power | 385 kW |
|---|---|
| Standby kVA | 409 |
| Prime power | 444 kW |
| Oil capacity | 91.0 L |
| Alternator | 35 amps |
| Voltage options | 24 V |
| Coolant capacity | 42.0 L |
| Max ambient | 55 °C |
| Dimensions (L×W×H) | 2269×1332×1669 mm |
| Dry weight | 1658 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 | — | 3000 hr | find | ||
| Fuel filter | — | 6000 hr | find | ||
| Oil filter | 3375049 | 24000 hr | PartsGeek | ||
| Belt | — | 3000 hr | find | ||
| Coolant | 90.8 l | — | 540 hr | ||
| Coolant filter | — | 3000 hr | find | ||
| Oil | 91.0 | — | 24000 hr |
Common questions
What is the power rating of the Cummins/Onan QSX15?
The Cummins/Onan QSX15 is rated 385 kW standby (409.0 kVA).
What engine does the Cummins/Onan QSX15 use?
The Cummins/Onan QSX15 is powered by the Cummins/Onan QSX15 engine.
What is the oil capacity of the Cummins/Onan QSX15?
The Cummins/Onan QSX15 engine in the Cummins/Onan QSX15 has an oil capacity of 83.0 liters.
What alternator does the Cummins/Onan QSX15 use?
The Cummins/Onan QSX15 uses a 35 amps alternator.
What oil filter does the Cummins/Onan QSX15 use?
The Cummins/Onan QSX15 uses oil filter part number 3375049.
Troubleshooting
6Fault codes
| Code | Meaning |
|---|---|
| OS | Overspeed |
| LOP | Low Oil Pressure |
| HET | High Engine Temperature |
| Fault 1 | High Engine Temperature Shutdown |
| 235 | Fault Code 235 |
| V2 | Fault Code V2 |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
27| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 19802521 | ECM Dataplate | ECM / ECU | PartsGeek | |
| 3331096 | Cummins, Part No. 3331096 | 1 | Fuel filter | PartsGeek |
| 3375044 | Torque Wrench | 1 | Belt | PartsGeek |
| 3375049 | Oil Filter Wrench | 1 | Oil filter | PartsGeek |
| 3376807 | Filter Wrench (Used to remove or tighten spin on fuel filters.) | 1 | Fuel filter | PartsGeek |
| 3406810 | Combination Full-Flow/Bypass Lubricating Oil Filter Cummins Part No. 3406810 | 1 | Oil filter | PartsGeek FridayParts $36.00 |
| AF25544 | Recommended air cleaner element - (heavy duty) primary element | 1 | Air filter | Amazon eBay $350.00 PartsGeek |
| AF25545 | Recommended air cleaner element - (heavy duty) secondary element | 1 | Air filter | Amazon eBay $350.00 PartsGeek |
| FS1007 | Fleetguard® Nelson®, Part No. FS1007 | 1 | Fuel filter | PartsGeek |
| M-3686661 | Valvula de escape - M-3686661 | Valve | PartsGeek | |
| M-4376220 | Upper Gasket Set | 1 | Gasket | PartsGeek |
| M-4376221 | Lower Gasket Set | 1 | Gasket | PartsGeek |
| M-5473087 | Piston Kit | Piston kit | PartsGeek | |
| M-5484414 | Piston Pin | Piston pin | PartsGeek | |
| 17200015 | Engine Shutdown | Service part / kit | PartsGeek | |
| 17690172 | Engine Braking System | Service part / kit | PartsGeek | |
| 17800006 | Engine Model | Service part / kit | PartsGeek | |
| 3163156 | Service cable for InPower™ | Service part / kit | PartsGeek | |
| 3822735 | Plastic bead blasting media | 1 | Service part / kit | PartsGeek |
| 3886301 | InPower™ electronic service tool | Service part / kit | PartsGeek | |
| M-3685996 | Intake Valve | Service part / kit | PartsGeek | |
| M-5473065 | 150mm Kit de Motor M-5473066 | Service part / kit | PartsGeek | |
| M-5473069 | 152mm Kit de Motor M-5473070 | Service part / kit | PartsGeek | |
| M-5473074 | Kit de Motor M-5473075 | 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 |
| ol204vt | Torque Peak | 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 |
|---|---|---|---|
| Prime | 100% | 107.0 | 28.4 |
| Standby | 100% | 123.0 | 32.4 |
Available documents
Engine spec — 0032276 (Cummins/Onan)Engine spec — 0032425 (Cummins/Onan)Spec sheet — 0070375 (Cummins/Onan)Spec sheet — 0070376 (Cummins/Onan)Spec sheet — QSX15-G4 (Cummins/Onan)Spec sheet — QSX15-G6 (Cummins/Onan)Spec sheet — QSX15-G7 (Cummins/Onan)Spec sheet — QSX15-G8 (Cummins/Onan)Spec sheet — QSX15-G9 XPI (1) (Cummins/Onan)Spec sheet — QSX15-G9 (Cummins/Onan)Spec sheet — QSX15G8 (Cummins/Onan)Spec sheet — QSX15G9 (Cummins/Onan)Installation manual — 908-0613 Cummins QSX15-G8-G9 Engine Installation Manual (2-2010) (Cummins/Onan)Installation manual — 908-0619 Cummins QSX15-G8-G9 3.3 Engine Installation Manual (2-2010) (Cummins/Onan)Reference — 0058562Reference — Schedule Technical2012 (Cummins/Onan)Service manual — 22523849 - EN (Cummins/Onan)Service manual — 960-0633B Cummins DFEG DFEH DFEJ DFEK Installation Manual (2-2004) (Cummins/Onan)Service manual — CUMMINS DIESELS QSX15 QSK45 QSK60 Generator Drive Control System 2000 (Cummins/Onan)Service manual — Cummins Diesel QSX15 Manual 1999 (2) (Cummins/Onan)Service manual — ServiceInstructions5 (Cummins/Onan)Service manual — cummins-isx-and-qsx-15-volmume-1-service-manual-sample