Mitsubishi S12R-A2PTAW vs MTU MTU 18V2000 G85
The Mitsubishi S12R-A2PTAW and MTU MTU 18V2000 G85 are both diesel generator engines in a similar power class. Both are rated at roughly 1,465 kVA. Displacement is 49.03 L versus 40.2 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi S12R-A2PTAW | MTU MTU 18V2000 G85 |
|---|---|---|
| Headline rating | 1,455 kVA | 1,474 kVA |
| Standby (50 Hz) | 1,164 kWe | — |
| Prime (50 Hz) | 1,058.4 kWe | — |
| Standby (60 Hz) | — | 1,179 kWe |
| Prime (60 Hz) | — | — |
| Displacement | 49.03 L | 40.2 L |
| Configuration | V12 | V18 |
| Cylinders | 12 | 18 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | U.S. EPA Tier 2 |
| Dry weight | 5270 kg | — |
| Origin | Japan | Germany |
Choosing between Mitsubishi S12R-A2PTAW and MTU MTU 18V2000 G85
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. The MTU MTU 18V2000 G85 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.