page_title: Australian Railroad Group
section_title: Locomotive fleet
hierarchical_section_title: Australian Railroad Group / Locomotive fleet
caption_attribution_description: English: Q4004 hauls the Empty Sulphur train to Kwinana
context_page_description: Australian Railroad Group was an Australian rail freight operator. It began operations in Western Australia on 17 December 2000 following its purchase of the Westrail freight business. It was purchased by QR National in June 2006. The main commodities hauled by ARG included grain, mineral sands, alumina, bauxite, coal, woodchips, quartz, nickel and iron ore around Western Australia. In June 2011 it ceased trading as a separate brand, and became part of QR National.
context_section_description: With the introduction of the ARG name and corporate colours, ARG began a gradual process of standardising the locomotive classification based on horsepower, with a progressive (and still incomplete) renumbering.  As of February 2006 new letter classes will be used in conjunction with the new horsepower based numbering system (The Z on the end of some class letters refers to locomotives fitted with ZTR).
  700 class (ex SAR 700 class)
  830 class (ex SAR 830 class)
  DA/900 class (ex AN DA class)
  CK/1000 class (ex AN CK class)
  A class (ex WAGR A class)
  DE/1300 class (ex BHP DE class)
  AB/1500 class (ex WAGR AB class)
  NJ/1600 class (ex CR NJ class)
  GM/1800 class (ex CR GM class)
  DA/DAZ/1900 class (ex WAGR DA class)
  DC/2200 class (ex NSWGR 422 class)
  DB/DBZ/2300 class (ex WAGR DB class)
  D/2350 class (ex WAGR D class)
  P/2500 class (ex WAGR P class)
  CL/CLZ/3000 class (ex AN CLF/CLP classes)
  L/LZ/3100 class (ex WAGR L class)
  ALF/3200 class (ex AN ALF class)
  S/3300 class (ex Westrail S class)
  Q/4000 class (ex Westrail Q class)
  AC/4300 class (new build UGL Rail C43aci)
caption: Q4004 in the original Genesee & Wyoming ARG livery with QR National at Kwinana in March 2009
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