Service parts for the QSX15-G15
Grouped by system, with how many of each the parts manual calls for.
Oil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
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 | 45.4 L |
|---|---|
| Coolant capacity | 24.0 L |
| Displacement | 15.0 L |
| Aspiration | Turbocharged and Charge-Air Cooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan QSX15| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Optional: primary element AF25544; secondary element AF25545 | — | 3000 hr | ||
| Fuel filter | Cummins Filtration FS1041 | — | 6000 hr | ||
| Oil filter | 3375049 | 24000 hr | Amazon eBay | ||
| Battery | 120V-AC, 3000 watts | — | 540 hr | ||
| Belt | Belt guard | — | 3000 hr | ||
| Coolant | 58.0 l | — | 540 hr | ||
| Coolant filter | Cummins Filtration WF2073 | — | 3000 hr | ||
| Oil | 91.0 l | — | 24000 hr | ||
| Spark plug | NGK Iridium, B8ESR-11 | — | 3000 hr |
Common questions
How many kW is 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's the oil capacity on a Cummins/Onan QSX15-G15?
The Cummins/Onan QSX15 engine in the Cummins/Onan QSX15-G15 has an oil capacity of 45.4 liters.
What alternator does the Cummins/Onan QSX15-G15 use?
The Cummins/Onan QSX15-G15 uses a 35 amps alternator.
What oil filter fits the Cummins/Onan QSX15-G15?
The Cummins/Onan QSX15-G15 uses oil filter part number 3375049.
Parts
28| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 19802521 | ECM Dataplate | ECM / ECU | Amazon eBay | |
| 3331096 | Cummins, Part No. 3331096 | 1 | Fuel filter | Amazon eBay $74.95 |
| 3375044 | Torque Wrench | 1 | Belt | Amazon eBay |
| 3375049 | Oil Filter Wrench | 1 | Oil filter | Amazon eBay |
| 3376807 | Engine coolant and fuel filter wrench | 1 | Fuel filter | Amazon eBay |
| 3406810 | Combination Full-Flow/Bypass Lubricating Oil Filter Cummins Part No. 3406810 | 1 | Oil filter | Amazon eBay KuduParts $34.00 |
| AF25544 | Recommended air cleaner element - (heavy duty) primary element | 4 | Air filter | Amazon $1537.19 eBay $285.93 |
| AF25545 | Recommended air cleaner element - (heavy duty) secondary element | 4 | Air filter | Amazon $109.00 eBay $143.70 |
| FS1007 | Fleetguard® Nelson®, Part No. FS1007 | 1 | Fuel filter | Amazon eBay KuduParts $51.00 |
| M-3686661 | Valvula de escape - M-3686661 | Valve | Amazon eBay | |
| M-4376220 | Juego Junta Superior N. ° de Pieza | 1 | Gasket | Amazon eBay |
| M-4376221 | Juego Junta Inferior N. ° de Pieza | 1 | Gasket | Amazon eBay |
| M-5473087 | Piston Kit | Piston kit | Amazon eBay | |
| M-5484414 | Piston Pin | Piston pin | Amazon eBay | |
| 17200015 | Engine Shutdown | Service part / kit | Amazon eBay | |
| 17690172 | Engine Braking System | Service part / kit | Amazon eBay | |
| 17800006 | Engine Model | Service part / kit | Amazon eBay | |
| 3163156 | Service cable for InPower™ | Service part / kit | Amazon eBay | |
| 3822735 | Plastic bead blasting media | 1 | Service part / kit | Amazon eBay |
| 3886301 | InPower™ electronic service tool | Service part / kit | Amazon eBay | |
| 960-0174B | Service part / kit | Amazon eBay | ||
| M-3685996 | Intake Valve | Service part / kit | Amazon eBay | |
| M-5473065 | 150mm Kit de Motor M-5473066 | Service part / kit | Amazon eBay | |
| M-5473069 | 152mm Kit de Motor M-5473070 | Service part / kit | Amazon eBay | |
| M-5473074 | Kit de Motor M-5473075 | Service part / kit | Amazon eBay | |
| TB3-5 | Generator Set Control Panel Terminal Block | 1 | Service part / kit | Amazon eBay FridayParts $399.75 |
| TB3-6 | Generator Set Control Panel Terminal Block | 1 | Service part / kit | Amazon eBay FridayParts $65.10 |
| ol204vt | Torque Peak | Service part / kit | Amazon eBay |
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)