Newag 6Dg

Built by Fablok

Top speed

90 km/h

56 mph

Power output

708 kW

949 hp

Weight

73 t

160,937 lb

Length

14.24 m

46 ft 9 in

Track gauge

1,435 mm

Standard gauge

Years built

1967–1972

Overview of the Newag 6Dg

Explore the robust 6Dg diesel locomotive, a powerful workhorse designed for Polish railways.

This versatile locomotive, also known as the SM42 series, was built by Fablok between 1967 and 1972, with some units refurbished by Newag in 2007.

It boasts a top speed of 90 km/h and features a Bo'Bo' UIC axle configuration.

With a length of 14.24 meters and weighing 73 tons, the 6Dg delivers an impressive power output of 708 kW and a tractive effort of 219 kN.

Discover its operational history with various Polish operators, including PKP Cargo and LOTOS Kolej, and its standard gauge of 1435 mm.

Railway companies that have operated the 6Dg, with the class designation used by each of them.

Operator	Class	Country
LOTOS Kolej Sp. z o.o.	LOTOS 6Dg	Poland
PKP Cargo	PKP Cargo SM42-12	Poland
Private owners group	@private-pl 6Dg	Poland
Przedsiebiorstwo Robót Kolejowych i Inzynieryjnych	PRKiI 6Dg	Poland