Mitsubishi

Mitsubishi S12R-PTAA2-C

S12R Series

In Production

Mitsubishi S12R-PTAA2-C 49.03L 12-cylinder Shanghai MHI generator-drive diesel engine. 1277 kWm prime and 1404 kWm standby at 50 Hz/1500 rpm.

Get help with this engine

Tell Haifeng whether you already own a Mitsubishi S12R-PTAA2-C engine/generator or need to source this model for a project.

I need service / overhaul supportFor overhaul, parts, documents, troubleshooting, or replacement matching.For clients who already have this engine or generator: overhaul, spare parts, documentation, troubleshooting, or replacement matching.WhatsApp service request I need to source this engineFor projects, tenders, overseas sourcing, availability, or equivalents.For projects, client leads, tenders, overseas sourcing, package availability, or acceptable equivalents.WhatsApp sourcing request

Request datasheet Compare engine Get a quote

Manufacturer files: No datasheet
Last updated: 2026-07-23
Package route: diesel generator sets

Standby Power · 50 Hz: 1,667 kVA
Electrical Output: 1,334 kWe
Cylinders: V12
Displacement: 49.03 L
Rated Speed: 1,500 RPM

Power Ratings

kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf · kWe estimated — see note below

50 Hz1500 RPM

	kWm	kWe	kVA
Prime Power	1277	1213.1	1516.4
Standby Power	1404	1333.8	1667.2

Note: The manufacturer does not publish a separate kWe rating for this engine. kWe values shown are estimated from the rated mechanical output (kWm) using a conservative 90% alternator efficiency factor.

Mitsubishi S12R-PTAA2-C 49.03L V12 diesel generator engine — 1,667 kVA standby specifications — Shareable spec cardMitsubishi S12R-PTAA2-C summary imageOpen image

Mitsubishi S12R-PTAA2-C generator set context

The Mitsubishi S12R-PTAA2-C is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 1,667 kVA / 1,334 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.

Also searched as

s12rptaa2cS12R PTAA2 CMitsubishi S12R-PTAA2-CS12R Series S12R-PTAA2-C

BrandAll Mitsubishi engines CompareSimilar engines Haifeng packagediesel generator sets

Technical Specifications

Brand	Mitsubishi
Model	S12R-PTAA2-C
Series	S12R Series
Configuration	V12
Cylinders	12
Displacement	49.03 L
Fuel Type	Diesel
Ignition Type	Compression Ignition
Cooling Method	Liquid-Cooled
Emissions Standard	Unregulated
Country of Origin	China

Frequently asked questions

What is the power output of the Mitsubishi S12R-PTAA2-C?

The Mitsubishi S12R-PTAA2-C is rated at 1,667 kVA standby / 1,516 kVA prime at 50 Hz (1,500 rpm).

Does the S12R-PTAA2-C run at 50 Hz or 60 Hz?

The Mitsubishi S12R-PTAA2-C is rated for 50 Hz (1,500 rpm).

What fuel does the Mitsubishi S12R-PTAA2-C use?

The Mitsubishi S12R-PTAA2-C is a diesel generator-set engine.

What is the displacement and cylinder configuration of the S12R-PTAA2-C?

The Mitsubishi S12R-PTAA2-C is a V12 (12-cylinder) engine with a displacement of 49.03 L.