Cummins INDUSTRIAL ENGINES
In ProductionCummins QSB7G3
QSB Series
Cummins QSB7G3 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 Tier 3 / EU Stage IIIA / China III emissions labeling. Treat this row as source-discovered and prioritize OEM datasheet attachment in a follow-up pass.
Electrical Output
150 kWe
Cylinders / Config
L6, turbocharged aftercooled
Displacement
6.7 L
Rated Speed
1,500 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 | 151 | 120 | — |
| Standby | 174 | 140 | — |
| Operating Duty | kWm (Mechanical) | kWe (Electrical) | kVA (Rating) |
|---|---|---|---|
| Prime | 163 | 136 | — |
| Standby | 186 | 150 | — |
Mechanical & Electrical Specifications
| Brand | Cummins |
| Model | QSB7G3 |
| 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 Tier 3 / EU Stage IIIA / China III |
| Certifications | U.S. EPA Tier 3, EU Stage IIIA, China III |
| Country of Origin | United States / United Kingdom |
Frequently Asked Questions
What is the power output of the Cummins QSB7G3?
The Cummins QSB7G3 is rated at 175 kVA standby / 150 kVA prime at 50 Hz (1,500 rpm); and 188 kVA standby / 170 kVA prime at 60 Hz (1,800 rpm).
Does the QSB7G3 run at 50 Hz or 60 Hz?
The Cummins QSB7G3 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Cummins QSB7G3 use?
The Cummins QSB7G3 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSB7G3?
The Cummins QSB7G3 is an inline-6 (6-cylinder) engine with a displacement of 6.7 L.
What emissions standard does the QSB7G3 meet?
The Cummins QSB7G3 is certified to U.S. EPA Tier 3 / EU Stage IIIA / China III emissions standards.
Is the Cummins QSB7G3 still in production?
Yes — the Cummins QSB7G3 is a current production model.