Cummins
Cummins QSB7G9
QSB Series
Cummins QSB7G9 generator-drive diesel engine discovered in the GenProBase public selector. GenProBase lists 2 row(s) across 50Hz, 60Hz with 6.7 L displacement, 6L cylinders, liquid-cooled cooling, and U.S. EPA Final Tier 4 / EU Stage IIIA 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
- 220 kVA
- Electrical Output
- 176 kWe
- Cylinders
- L6
- Displacement
- 6.7 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 | 185 | 160 | — |
| Standby Power | 204 | 176 | — |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 210 | 180 | — |
| Standby Power | 234 | 200 | — |
Cummins QSB7G9 generator set context
The Cummins QSB7G9 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 220 kVA / 176 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 | QSB7G9 |
| Series | QSB Series |
| Configuration | L6, turbocharged aftercooled |
| Cylinders | 6 |
| Displacement | 6.7 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Final Tier 4 / EU Stage IIIA |
| Certifications | U.S. EPA Final Tier 4, EU Stage IIIA |
| Country of Origin | United States / United Kingdom |
Frequently asked questions
What is the power output of the Cummins QSB7G9?
The Cummins QSB7G9 is rated at 220 kVA standby / 200 kVA prime at 50 Hz (1,500 rpm); and 250 kVA standby / 225 kVA prime at 60 Hz (1,800 rpm).
Does the QSB7G9 run at 50 Hz or 60 Hz?
The Cummins QSB7G9 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Cummins QSB7G9 use?
The Cummins QSB7G9 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSB7G9?
The Cummins QSB7G9 is an inline-6 (6-cylinder) engine with a displacement of 6.7 L.
What emissions standard does the QSB7G9 meet?
The Cummins QSB7G9 is certified to U.S. EPA Final Tier 4 / EU Stage IIIA emissions standards.
Is the Cummins QSB7G9 still in production?
Yes — the Cummins QSB7G9 is a current production model.