Engine number

Engine number may refer to an identification number marked on the engine of a vehicle or, in the case of locomotives, to the road number of the locomotive.

[1][2] The engine number includes coded information, which can be decoded to reveal, for example, year of manufacture, country of manufacture, and engine type.

[3] The term is also used in train terminology.

[4] In this instance, it refers to the road number assigned to motive power by the operator, as opposed to a constructor's or builder's number (equivalent to a vehicle VIN number).

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