Editing 4-8-4 (section)

{{Short description|Locomotive wheel arrangement}}
{{Infobox steam wheel arrangement
| name             = 4-8-4 (Northern)
| image            = WheelArrangement 4-8-4.svg
| alt              = Diagram of two small leading wheels, four large driving wheels joined by a coupling rod, and two small trailing wheels
| caption          = 
| image2           = 3751 in the yard July 2017.jpg
| alt2             = 
| caption2         = [[Atchison, Topeka and Santa Fe Railway|Santa Fe]] No. [[Santa Fe 3751|3751]]
<!--Equivalent classifications-->
| hatnote          = 
| UIC/Germany/Italy= 2′D2′
| French/Spanish   = 242
| Turkish          = 48
| Swiss            = 4/8
| Russian          = 2-4-2
<!--First known tank engine version-->
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<!--First known tender engine version-->
| date2            = 1926
| country2         = United States 
| locomotive2      = NP class A
| railway2         = [[Northern Pacific Railway]]
| designer2        = [[American Locomotive Company]]
| builder2         = American Locomotive Company
| evolvedfrom2     = [[4-8-2]], [[4-6-4]]
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| mainbenefit2     = Deeper firebox than the 4-8-2.
| maindrawback2    = 
<!--First known "True type" version-->
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Under the [[Whyte notation]] for the classification of [[steam locomotive]]s, '''{{nowrap|4-8-4}}''' represents the [[wheel arrangement]] of four [[leading wheel]]s on two axles, eight powered and coupled [[driving wheel]]s on four axles and four [[trailing wheel]]s 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'''.
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