Cummins INDUSTRIAL ENGINES
In ProductionCummins QST30
QST30 Series
Cummins QST30 30.48 L V12 diesel engine for generator and industrial constant-speed applications. EPA annual certification data lists up to 1,111 kW mechanical power at 1800 RPM. U.S. EPA Interim Tier 4 / U.S. EPA Final Tier 4. Electrical ratings are stored only where an official Cummins generator-set rating card identifies the exact engine model.
Cylinders / Config
V12
Displacement
30.48 L
Mechanical & Electrical Specifications
| Brand | Cummins |
| Model | QST30 |
| Series | QST30 Series |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 30.48 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Interim Tier 4 / U.S. EPA Final Tier 4 |
| Certifications | U.S. EPA Interim Tier 4, U.S. EPA Final Tier 4 |
| Country of Origin | United States |
Frequently Asked Questions
What fuel does the Cummins QST30 use?
The Cummins QST30 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QST30?
The Cummins QST30 is a V12 (12-cylinder) engine with a displacement of 30.48 L.
What emissions standard does the QST30 meet?
The Cummins QST30 is certified to U.S. EPA Interim Tier 4 / U.S. EPA Final Tier 4 emissions standards.
Is the Cummins QST30 still in production?
Yes — the Cummins QST30 is a current production model.
Is a datasheet available for the QST30?
Yes — an official Cummins datasheet for the Cummins QST30 can be downloaded from this page.