Cummins
Cummins QSK78G9
QSK Series
Cummins QSK78G9 generator-drive diesel engine discovered in the GenProBase public selector. GenProBase lists 1 row(s) across 50Hz with 78 L displacement, 18V cylinders, liquid-cooled cooling, and Unregulated emissions labeling. Treat this row as source-discovered and prioritize OEM datasheet attachment in a follow-up pass.
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- Manufacturer files
- No datasheet
- Last updated
- 2026-08-05
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 3,000 kVA
- Electrical Output
- 2,400 kWe
- Cylinders
- V18
- Displacement
- 78 L
- Rated Speed
- 1,500 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 2304 | 2200 | — |
| Standby Power | 2539 | 2400 | — |
Cummins QSK78G9 generator set context
The Cummins QSK78G9 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 3,000 kVA / 2,400 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
Also searched as
Technical Specifications
| Brand | Cummins |
| Model | QSK78G9 |
| Series | QSK Series |
| Configuration | L18, turbocharged aftercooled |
| Cylinders | 18 |
| Displacement | 78 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | United Kingdom |
Frequently asked questions
What is the power output of the Cummins QSK78G9?
The Cummins QSK78G9 is rated at 3,000 kVA standby / 2,750 kVA prime at 50 Hz (1,500 rpm).
Does the QSK78G9 run at 50 Hz or 60 Hz?
The Cummins QSK78G9 is rated for 50 Hz (1,500 rpm).
What fuel does the Cummins QSK78G9 use?
The Cummins QSK78G9 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSK78G9?
The Cummins QSK78G9 is a V18 (18-cylinder) engine with a displacement of 78 L.
Is the Cummins QSK78G9 still in production?
Yes — the Cummins QSK78G9 is a current production model.