Cummins QSK50G14 vs MTU MTU 12V4000 G74F
Compare Cummins QSK50G14 and MTU MTU 12V4000 G74F by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 50 L and 57.2 L, respectively. Start with the same duty and frequency, then check each model’s source and package conditions. These records alone do not establish interchangeability.
| Specification | Cummins QSK50G14 | MTU MTU 12V4000 G74F |
|---|---|---|
| Standby electrical (50 Hz) | 1,408 kWe | 1,418 kWe |
| Prime electrical (50 Hz) | 1,300 kWe | Not listed |
| Standby electrical (60 Hz) | Not listed | Not listed |
| Prime electrical (60 Hz) | Not listed | Not listed |
| Other recorded mechanical power (duty unspecified) | 1,552 kW | Not listed |
| Displacement | 50 L | 57.2 L |
| Configuration | V16 | V12 |
| Cylinders | 16 | 12 |
| Recorded engine speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | China III / U.S. EPA Tier 2 | Unregulated |
| Dry weight | Not listed | Not listed |
| Origin | United Kingdom | Germany |
Compare matching ratings
Read across a row to compare the same operating duty and frequency. kWe is electrical output; mechanical kW is power at the engine shaft. kVA is apparent electrical power and is shown only when kWe is missing, without converting it. “Not listed” means the record lacks that rating, not zero output. Continuous and prime duties are kept separate. Check source documents, units and site conditions before comparing values.
An emissions classification in the catalog is not proof of certification for your engine or installation. Confirm the exact model, applicable documents and generator configuration.
Cummins QSK50G14: Review the model record and available supporting documents
MTU MTU 12V4000 G74F: Review the model record and available supporting documents
Choosing between Cummins QSK50G14 and MTU MTU 12V4000 G74F
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing.