M62 locomotive (PKP)

M62 is a Soviet standard gauge mainline heavy freight diesel electric locomotive built between 1966 and 1993 for Eastern Bloc countries, they were then sold to private railway companies in Poland after their retirement. Built by Voroshilovgrad Locomotive Works in Luhansk, Soviet Union (in Ukraine 1991 - 1993). The locomotives aren't classified by PKP in which they're classified by its build model, the fleet numbers are numbered differently, at which some of the locomotives might have their original fleet numbers before they were exported.^[1]

M62s were imported from Germany, Lithuania, Latvia, Estonia, Hungary and Russia, they were originally built for Czechoslovak State Railways, Deutsche Reischbahn, Hungarian State Railways and Soviet Railways, after the collapse of Soviet Union the locomotives operating in the Baltic states came in part of Lithuanian Railways, Latvian Railways and Eesti Raudtee, those operating in Ukraine came in part of Ukrainian Railways,^[1] after the dissolution of Czechoslovakia most of the locomotives were exported to Germany,^[1] M62s owned by Deutsche Bahn were sold to German private railway companies, mostly to ITL Dresden in 1999.^[1] Some of the M62 locomotives were refurbished from ST44 locomotives, additionally Poland had their own M62 locomotives delivered from the Soviet Union, specially built for industrial railways in Poland.

The locomotives underwent some refurbishments and modernisations for the private railway companies, Rail Polska refurbished 16 locomotives and reclassified them to M62M,^[1] some of them were even rebuilt into electric locomotives classified 207E, Pesa with the ability of modernising ST44 locomotives also modernised the M62s, as well as Tabor Szynowy Opole where it refurbished the 2M62U locomotives, they were rebuilt into single unit locomotives in Daugavplis, Latvia which were then exported to Poland.^[1]