Diesel locomotive TU8 (ТУ8) is used for transportation & shunting services on narrow-gauge railways with a track gauge ranging from 750 mm (2 ft 5+1⁄2 in) to 1,067 mm (3 ft 6 in). The TU8 was developed in 1987 – 1988 at the Kambarka Engineering Works to replace the ageing locomotive classes TU6A (ТУ6А). The cab is equipped with efficient heat-system, refrigerator, radio-set and air conditioning.[1]