A turbocharger on a diesel locomotive, is a device used to generate more horsepower from the locomotive's diesel engine, also known as the prime mover.  It uses the engine's hot exhaust gases to drive a compressor which forces more air into the intake manifold.

Diesel Locomotive Turbocharger

A diesel locomotive turbocharger.

EMD GP30 Demonstrator

An EMD GP30, a turbocharged diesel locomotive.


The EMD SD24 and GP20 were EMDs first six-axle and four-axle turbocharged diesel locomotives.