Yuchai

Yuchai YCMJ12520-D40

MJ12

In Production

The Yuchai YCMJ12520-D40 is a 11.73-litre inline-6 diesel engine for generator sets, rated at 413 kVA / 330 kWe standby power at 1,500 RPM (50 Hz). It is a liquid-cooled engine built in China.

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Manufacturer files: No datasheet
Last updated: 2026-05-29
Package route: diesel generator sets

Standby Power · 50 Hz: 413 kVA
Electrical Output: 330 kWe
Cylinders: L6
Displacement: 11.73 L
Rated Speed: 1,500 RPM

Power Ratings

kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf

50 Hz1500 RPM

	kWm	kWe	kVA
Prime Power	333.3	300	375
Standby Power	366.7	330	412.5

Yuchai YCMJ12520-D40 11.73L L6 diesel generator engine — 413 kVA standby specifications — Shareable spec cardYuchai YCMJ12520-D40 summary imageOpen image

Yuchai YCMJ12520-D40 generator set context

The Yuchai YCMJ12520-D40 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 413 kVA / 330 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

ycmj12520d40YCMJ12520 D40Yuchai YCMJ12520-D40

BrandAll Yuchai engines CompareSimilar engines Haifeng packagediesel generator sets

Technical Specifications

Brand	Yuchai
Model	YCMJ12520-D40
Series	MJ12
Configuration	L6
Cylinders	6
Displacement	11.73 L
Fuel Type	Diesel
Ignition Type	Compression Ignition
Cooling Method	Liquid-Cooled
Emissions Standard	China National Stage IV / Unregulated
Country of Origin	China

Frequently asked questions

What is the power output of the Yuchai YCMJ12520-D40?

The Yuchai YCMJ12520-D40 is rated at 413 kVA standby / 375 kVA prime at 50 Hz (1,500 rpm).

Does the YCMJ12520-D40 run at 50 Hz or 60 Hz?

The Yuchai YCMJ12520-D40 is rated for 50 Hz (1,500 rpm).

What fuel does the Yuchai YCMJ12520-D40 use?

The Yuchai YCMJ12520-D40 is a diesel generator-set engine.

What is the displacement and cylinder configuration of the YCMJ12520-D40?

The Yuchai YCMJ12520-D40 is an inline-6 (6-cylinder) engine with a displacement of 11.73 L.