Mesa GV22PU vs Mesa GX12
Compare Mesa GV22PU and Mesa GX12 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 21.9 L and 11.1 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 | Mesa GV22PU | Mesa GX12 |
|---|---|---|
| Standby electrical (50 Hz) | 399 kWe | Not listed |
| Prime electrical (50 Hz) | Not listed | Not listed |
| Standby electrical (60 Hz) | 450 kWe | Not listed |
| Prime electrical (60 Hz) | 409 kWe | Not listed |
| Other recorded mechanical power (duty unspecified) | 510 kW | 294 kW |
| Displacement | 21.9 L | 11.1 L |
| Configuration | V12 | L6 |
| Cylinders | 12 | 6 |
| Recorded engine speed | 1,800 RPM | 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | U.S. EPA Stationary | U.S. EPA Stationary |
| Dry weight | Not listed | Not listed |
| Origin | United States | South Korea / United States |
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.
Mesa GV22PU: Review the model record and available supporting documents
Mesa GX12: Review the model record and available supporting documents
Choosing between Mesa GV22PU and Mesa GX12
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.