Locomotive Wiki
Locomotive Wiki

The main EMD logo, which was also how the Electro-Motive Corporation's (EMD's predecessor) logo originally was arranged.

The Electro Motive Division, or EMD is a North American locomotive company which was formed during the early 1920's as the Winton Electric Company in Cleveland, Ohio. Though, was renamed and redeveloped several times before eventually becoming the Electro Motive Corporation; which was relocated to LaGrange, Illinois in 1935, but was then purchased by the General Motors Corporation (GM) of Detroit, Michigan from 1937 to 1939, and thus became what is now known as the Electro Motive Division (or simply EMD) in 1941, which in turn is now owned by Caterpillar Inc. (CAT) as of late-2012.


The main locomotive building or manufacturing facility was originally situated in LaGrange, Illinois, United States, but eventually moved to London, Ontario, Canada around 1949 and served as their main facility until 2012 (aside from their manufacturing facilities, one of their main leasing and testing facilities is located in Pueblo, Colorado as well as such facility existing in the Muncie, Indiana manufacturing facility). As of 2011; however, a new facility was opened in Muncie, Indiana which served as the main replacement for the London facility which was a result of CAT's partial purchase of EMD (before the full purchase a year later) and new affiliates (listed below).

EMD's alternate logo which is often used on newer demonstrator locomotives.

All their previous facilities (including their affiliates) currently distribute parts, or assemble actual locomotives or the parts for the locomotives themselves (such as LaGrange's current state and that of their Mexico facility).

The company itself has produced more than over 1,000 different types of diesel-electric locomotives (including one of the first official to be mass-produced), which have all been very successful, reliable, and popular amongst railfans and train enthusiasts. They have also built several foreign locomotives for the UK, Australia and Ireland, as well as (of course) Canada, to whom there are Canadian versions of American locomotives.

Their main competitor, for the longest time, was GE (General Electric), though their rival finally took the lead in the Locomotive Industry from 1965 onwards as a result of their ever-successful and dominatingDash 8 line. But as a result, EMD no longer competes with any locomotive companies, but has since struggled to maintain sales and popularity (especially due to the 2008 economic down-turn in the United States).

The division of EMD's new owner which is (in-part) loosely affiliated with ProgressRail in building such locomotives as the PR43C.

As of late-2012, EMD is no longer officially owned by GM and is now entirely owned by CAT (Caterpillar Industries Inc.) as a result of a full acquisition, and are also affiliated with Motive Power and ProgressRail (or ProgressiveRail); which are companies rebuild older locomotives into newer energy-efficient "Tier" compliant locomotives (although they received EMD's permission to do so even before the CAT purchase).

They primarily built diesel locomotives (specifically diesel-electric; with the exception of some being purely mechanical or hydraulic), but have built very few electric types (such as the GM6C, and co-producing the AEM-7 with ASEA).

List of EMD Locomotives[]

ECO rebuilds

Six-axled locomotives, A1A version of the F Series; similar production timeline; though introduced before the FT and the rest of the F Series

F Series[]

Main article: EMD F Series

These locomotives were built from the 1930s to the 1960s and were streamlined with four axles.

  • FT
  • F2

    The only surviving set of an EMD FT

  • F3
  • F5 (Variant of the F3)
  • F7
  • F9
  • F125
  • FP7
  • FP9
  • FL9 (B-A1A)
  • F45
  • F40C
  • F40PH/F40PHR
  • FP45
  • F59PH/F59PHI
  • F69PHAC

GP Series[]

These locomotives were build from the 1950s to the 1990s and had four axles. The GP stands for "General Purpose". The series was discontinued due to the need for bigger, stronger locomotives after the Staggers Act of 1980 saw a large increase in train length and weight.

SD Series[]

These locomotives were built from the 1950s to present, and were six-axled locmotives. The SD stands for "Super Duty" or "Special Duty".

Switcher Series[]

These locomotives were built from the 1930s to the 1970s

  • SW1 (Originally built by EMC/Winton)
  • SW7

    One of the official logo's for the CAT Corporation (EMD's current owner).

  • SW8
  • NW1 (Originally built by EMC/Winton)
  • NW2
  • NW5
  • SW1000
  • SW1500

Cowl Units[]

These locomotives were fully covered non-streamlined six and four-axled diesel locomotives built from the 1960s to present

Double Diesel Series[]

These locmotives were built from the 1960s to the 1980s and had eight axles


  • BL1
  • BL2
  • BL20-2 (four-axle rebuild; only three built; still exist)
  • DE30AC
  • DM30AC
  • MP15DC
  • MP15AC
  • MP15T
  • RS1325
  • A7 (Australia)
  • GM Class (Australia)
  • MRS-1 (US Military)

The logo of the company's original owner.

Winton Era[]

  • SC
  • NC
  • NC1
  • NC2
  • T

EMC Era[]

  • EA
  • E1
  • E2
  • E3
  • E4
  • FT (Originally built by EMC; later EMD)
  • NW1
  • NW2
  • NW3
  • NW4
  • TR1
  • SW1
  • SW7
  • DH1
  • AB6


Railroads have also rebuilt older EMD locomotives (ATSF CF7), which also has encouraged EMD to rebuild their own official rebuild models (the GP15-1 and BL20-2).

See also[]

Category:EMD locomotives

External links[]