Cummins INDUSTRIAL ENGINES
In ProductionCummins QSK78G20
QSK Series
Cummins QSK78G20 generator-drive diesel engine discovered in the GenProBase public selector. GenProBase lists 1 row(s) across 60Hz with 78 L displacement, 18V cylinders, liquid-cooled cooling, and U.S. EPA Tier 2 emissions labeling. Treat this row as source-discovered and prioritize OEM datasheet attachment in a follow-up pass.
Electrical Output
2500 kWe
Cylinders / Config
L18, turbocharged aftercooled
Displacement
78 L
Rated Speed
1,800 RPM
ISO 8528 Power Ratings
Power Factor: 0.8 pfkWm = mechanical engine shaft power · kWe = electrical output · kVA = apparent electrical power.
| Operating Duty | kWm (Mechanical) | kWe (Electrical) | kVA (Rating) |
|---|---|---|---|
| Prime | 2502 | 2275 | — |
| Standby | 2763 | 2500 | — |
Mechanical & Electrical Specifications
| Brand | Cummins |
| Model | QSK78G20 |
| 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 | U.S. EPA Tier 2 |
| Certifications | U.S. EPA Tier 2 |
| Country of Origin | United Kingdom |
Frequently Asked Questions
What is the power output of the Cummins QSK78G20?
The Cummins QSK78G20 is rated at 3,125 kVA standby / 2,844 kVA prime at 60 Hz (1,800 rpm).
Does the QSK78G20 run at 50 Hz or 60 Hz?
The Cummins QSK78G20 is rated for 60 Hz (1,800 rpm).
What fuel does the Cummins QSK78G20 use?
The Cummins QSK78G20 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSK78G20?
The Cummins QSK78G20 is a V18 (18-cylinder) engine with a displacement of 78 L.
What emissions standard does the QSK78G20 meet?
The Cummins QSK78G20 is certified to U.S. EPA Tier 2 emissions standards.
Is the Cummins QSK78G20 still in production?
Yes — the Cummins QSK78G20 is a current production model.