Cummins
Cummins QSK50-G3
QSK50 Series
The Cummins QSK50-G3 is a 50.3-litre V16 diesel engine for generator sets, rated at 1,561 kVA / 1,249 kWe standby power at 1,500 RPM (50 Hz). It is a liquid-cooled engine built in United States. It meets U.S. EPA Tier 2 emissions standards.
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- Manufacturer files
- 1 datasheet
- Last updated
- 2026-05-29
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 1,561 kVA
- Electrical Output
- 1,249 kWe
- Cylinders
- V16
- Displacement
- 50.3 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 1244.4 | 1120 | 1400 |
| Standby Power | 1387.8 | 1249 | 1561.3 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 1422.2 | 1280 | 1600 |
| Standby Power | 1580 | 1422 | 1777.5 |
Cummins QSK50-G3 generator set context
The Cummins QSK50-G3 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 1,561 kVA / 1,249 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.
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Technical Specifications
| Brand | Cummins |
| Model | QSK50-G3 |
| Series | QSK50 Series |
| Configuration | V16 |
| Cylinders | 16 |
| Displacement | 50.3 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 2 |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Cummins QSK50-G3?
The Cummins QSK50-G3 is rated at 1,561 kVA standby / 1,400 kVA prime at 50 Hz (1,500 rpm); and 1,778 kVA standby / 1,600 kVA prime at 60 Hz (1,800 rpm).
Does the QSK50-G3 run at 50 Hz or 60 Hz?
The Cummins QSK50-G3 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Cummins QSK50-G3 use?
The Cummins QSK50-G3 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSK50-G3?
The Cummins QSK50-G3 is a V16 (16-cylinder) engine with a displacement of 50.3 L.
What emissions standard does the QSK50-G3 meet?
The Cummins QSK50-G3 is certified to U.S. EPA Tier 2 emissions standards.
Is the Cummins QSK50-G3 still in production?
Yes — the Cummins QSK50-G3 is a current production model.
Is a datasheet available for the QSK50-G3?
Yes — an official Cummins datasheet for the Cummins QSK50-G3 can be downloaded from this page.