TU8 (ТУ8) – Soviet, later Russian diesel locomotive for gauge 750 mm (2 ft 5+1⁄2 in).

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] The diesel locomotive TU8 (ТУ8) has been used as the basis of three other locomotives: This diesel locomotive-related article is a stub.