Firema D146

Built by Firema

Top speed

120 km/h

75 mph

Power output

1,260 kW

1,690 hp

Weight

72 t

158,733 lb

Length

14.43 m

47 ft 4 in

Track gauge

1,435 mm

Standard gauge

Years built

2002–2006

32 units

Overview of the Firema D146

Discover the D146 diesel locomotive, a powerful and versatile machine designed for heavy-duty railway operations in Italy.

This robust locomotive, built by Firema between 2002 and 2006, boasts a top speed of 120 km/h and a significant tractive effort of 200 kN, making it ideal for freight and industrial services.

With a substantial weight of 72 tons and a length of 14.43 meters, the D146 is engineered for performance and reliability, featuring a strong Isotta Fraschini V1712 T2F prime mover that delivers 1260 kW of power output.

Serving key Italian operators such as Italian State Railways (FS) and Mercitalia Rail (MIR), the D146 is a testament to modern locomotive engineering, recognized for its efficiency and capabilities on the standard gauge 1435 mm tracks.

Firema D146 technical specifications

	Value	Imperial / US
Series	D146
Built by	Firema · 2002–200632 units
Top speed	120 km/h75 mph	75 mph
Power output	1,260 kW1,690 hp	1,690 hp
Tractive effort	200 kN44,962 lbf	44,962 lbf
Prime mover	Isotta Fraschini V1712 T2F
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	B'B'
Length	14.43 m47 ft 4 in	47 ft 4 in
Width	3.08 m10 ft 1 in	10 ft 1 in
Height	4.28 m14 ft 1 in	14 ft 1 in
Weight	72 t158,733 lb	158,733 lb