Decauville Y 7400

Built by De Dietrich, Decauville, Moyse

Top speed

60 km/h

37 mph

Power output

129 kW

173 hp

Weight

32 t

70,548 lb

Length

8.94 m

29 ft 4 in

Track gauge

1,435 mm

Standard gauge

Years built

1963–1972

489 units

Overview of the Decauville Y 7400

Discover the Y 7400, a robust and versatile diesel locomotive designed for shunting and light line services.

Built between 1963 and 1972 by renowned manufacturers like De Dietrich, Decauville, and Moyse, this workhorse has proven its reliability for decades.

With a top speed of 60 km/h and weighing 32 tons, the Y 7400 offers excellent agility and precision for various operational needs. Its 0-4-0 Whyte notation and B' UIC axles provide superb maneuverability on standard 1435 mm gauge tracks.

Measuring 8.94 meters in length, 2.87 meters in width, and 3.87 meters in height, its compact dimensions make it suitable even for confined spaces. The 129 kW power output and 73 kN tractive effort ensure efficient performance for freight transport and other essential railway support tasks.

The Y 7400 locomotives primarily served in France, employed by operators such as Régiorail Lorraine and the French National Railway Corporation (SNCF), underscoring their significant role in the French railway landscape.

Decauville Y 7400 technical specifications

	Value	Imperial / US
Built by	De Dietrich, Decauville, Moyse · 1963–1972489 units
Top speed	60 km/h37 mph	37 mph
Power output	129 kW173 hp	173 hp
Tractive effort	73 kN16,411 lbf	16,411 lbf
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	B'
Whyte notation	0-4-0
Length	8.94 m29 ft 4 in	29 ft 4 in
Width	2.87 m9 ft 5 in	9 ft 5 in
Height	3.87 m12 ft 8 in	12 ft 8 in
Weight	32 t70,548 lb	70,548 lb