title: TU4 diesel locomotive
text: # TU4 diesel locomotive
  
  TU4 (ТУ4) is a Soviet narrow-gauge diesel locomotive for the track gauge of 750 mm (2 ft 5+1⁄2 in).
  
  ## History
  
  The first TU4 was built in 1962 at the Kambarka Engineering Works. 3210 TU4 locomotives were produced until 1974. The locomotives were used on many narrow-gauge railways to move cargo as well as passenger trains.
  
  * ТУ4-2091, Jokioinen Museum Railway
  * ТУ4-2129, Pishchalskoye railway
  * ТУ4-2790, Dymnoye railway
  