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The M 25 C, part of the MaK long-stroke engine generation, is based on the proven design characteristics of the M 20 C, M 32 C, and M 43 C engine series. In the development of this new engine generation, the objective was to achieve a high benefit level for the customer. In all design and development considerations, therefore, three criteria had maximum priority - reliability, economy and environmental compatibility.

Power Rating

Power Range 1740-3000 bkW 1740-3000 bkW Less

Engine Specifications

Speed Range 720-750 rpm 720-750 rpm Less
Emissions IMO II IMO II Less
Aspiration Turbocharged Turbocharged Less
Bore 10.0 in 255.0 mm Less
Stroke 15.78 in 400.0 mm Less
Displacement 1244.89 in3 20.4 L Less
Rotation (from flywheel end) Counterclockwise/Clockwise Counterclockwise/Clockwise Less
Configuration Inline 6,8,9 Cylinder Inline 6,8,9 Cylinder Less

Dimensions & Weights

Minimum Dry Weight 51700.0 lb 23500.0 kg Less
Minimum Length 210.4 in 5345.0 mm Less
Maximum Length 264.5 in 6719.0 mm Less
Minimum Height 133.3 in 3387.0 mm Less
Maximum Height 135.4 in 3439.0 mm Less
Minimum Width 89.0 in 2261.0 mm Less
Maximum Width 91.2 in 2316.0 mm Less

Maximum operational reliability

Maximum economy

Low fuel consumption

Low lubricating oil consumption

Long maintenance intervals and component life

Heavy fuel oil compatibility

Robust and simple

Reduction in the number of components

Very maintenance-friendly

Environmentally-friendly due to low NOx and CO2 emissions

Ease of installation

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