Specifications
| Fuel | diesel |
|---|---|
| Frequency | 50.0 Hz |
| Standby power | 1120 kW |
| Standby kVA | 1400 |
| Prime power | 1020 kW |
| Emissions | EPA NSPS Stationary Emergency Tier 2 |
| Oil capacity | 234.7 L |
| Alternator | 55A |
| Coolant capacity | 294 L |
| Max ambient | 53 °C |
| Dimensions (L×W×H) | 4674×2468×3100 mm |
| Dry weight | 7429 kg |
Filters for the Cummins/Onan QSK50-G2
1Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Fuel / water separator | P550849 | Fuel Filter, Water Separator Cartridge | CUMMINS 3944901S, NAPA 3763, BALDWIN PF7928, DAVCO 102526 | FridayParts $20.90 KuduParts $39.00 |
Service intervals
2| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| valve clearance | Check | 2000 hr | B-Series (4BT3.3): valve clearance checks not required for 2000 hours, twice the industry standard | |
| engine overhaul | Other | 20000 hr | QSK23-Series: expected life cycle to 20,000 hours before first overhaul |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What is the power rating of the Cummins/Onan QSK50-G2?
The Cummins/Onan QSK50-G2 is rated 1120 kW standby (1400.0 kVA).
What engine is in the Cummins/Onan QSK50-G2?
The Cummins/Onan QSK50-G2 is powered by the Cummins/Onan QSK50-G2 engine.
Is the Cummins/Onan QSK50-G2 diesel or gas?
The Cummins/Onan QSK50-G2 runs on diesel.
How much coolant does the Cummins/Onan QSK50-G2 hold?
The Cummins/Onan QSK50-G2 cooling system holds 294 liters (77.7 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
How much oil does the Cummins/Onan QSK50-G2 take?
The Cummins/Onan QSK50-G2 has an engine oil capacity of 234.7 liters (248.0 US quarts), per the manufacturer specification sheet.
What is the prime power rating of the Cummins/Onan QSK50-G2?
The Cummins/Onan QSK50-G2 is rated 1020 kW prime (1275 kVA), against 1120 kW standby.
How much does the Cummins/Onan QSK50-G2 weigh?
The Cummins/Onan QSK50-G2 has a dry weight of 7429 kg (16378 lb).
Which alternator is fitted to the Cummins/Onan QSK50-G2?
The Cummins/Onan QSK50-G2 uses a 55A alternator.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 75% | 286.0 | 75.55 |
| Prime | 100% | 337.0 | 89.1 |
| Standby | 100% | 323.0 | 85.33 |
Available documents
This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.