Firstly, not an engine,
"engine: a machine for converting any of various forms of energy into mechanical force and motion."
With you on the other bits.
Class 8 BR Shunter uses a huge 90L diesel (engine) to generate electricity for the 2 x 560KW traction (motors).
Before it was cool.
FYI
@Ordinata started
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"engine: a machine for converting any of various forms of energy into mechanical force and motion."
With you on the other bits.