4-8-4 locomotives

Under the Whyte notation for the classification of steam locomotives, ' represents the wheel arrangement of four leading wheels on two axles, eight powered and coupled driving wheels on four axles and four trailing wheels on two axles. The type was first used by the Northern Pacific Railway, and initially named the Northern Pacific, but railfans and railroad employees have shortened the name since its introduction. It is most commonly known as a Northern', among various names.

preserved American 4-8-4 locomotive (UP class FEF-3)

class of 90 South African 4-8-4 locomotives with condensing tenders

class of Soviet 4-8-4 locomotives

three classes of American 4-8-4 locomotives

Class of 28 American 4-8-4 locomotives

4–8-4 steam locomotive

class of 14 American 4-8-4 locomotives

preserved American 4-8-4 locomotive (SP GS-4 class)