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All the engines dealt with here are related in terms of their design and make up a family.
The type classification, which is made up of a series of letters and numbers, reveals some of the features
of the engine in question provided the reader is familiar with the underlying nomenclature.
The system is explained below using the model type D 2842 LE 620 as an example:
D The “D” at the start of the type classification stands for “Diesel”
28 The numbers “28” indicates that the power plant in question has a bore of 128 mm
4 The “4” means 142 mm stroke
2 The “2” indicates that there are 12 cylinders. If there is a “0”, this is a 10−cylinder engine
L This letter stands for “charge−air cooling” (German: Ladeluftkühlung)
E The “E” stands for “fitted engine” (German: Einbaumotor) and is intended to distinguish MAN
vehicle engines
620 This is a factory-internal development number
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