© trainspo.comOM Ln 664
Built by Fiat, OM
Overview of the OM Ln 664
Discover the versatile Ln 664 control car, a classic of Italian railway transport.
Built between 1957 and 1959 by Fiat and OM, this unit from the ALn 668 series stands out for its robust design and its capacity of 64 second-class seats.
With a top speed of 110 km/h and a gauge of 1435 mm, the Ln 664 has served important operators such as Società Ferrovie Udine-Cividale (FUC) and Gruppo Torinese Trasporti (GTT), proving its reliability on various routes.
Its dimensions, with a length of 17.7 meters and a weight of 20 tons, along with its 2'2' axle configuration, make it an efficient and agile transport solution.
Explore the history and features of the Ln 664 control car, an icon of the Italian railway.
OM Ln 664 technical specifications
| Value | Imperial / US | |
|---|---|---|
| Series | ALn 668 | |
| Built by | Fiat, OM · 1957–195933 units | |
| Top speed | 110 km/h68 mph | |
| Track gauge | 1,435 mmStandard gauge4 ft 8½ in | |
| UIC axle arrangement | 2'2' | |
| Capacity | 2nd class 64 seats | |
| Length | 17.7 m58 ft 1 in | |
| Width | 2.9 m9 ft 6 in | |
| Height | 3.62 m11 ft 11 in | |
| Weight | 20 t44,092 lb |
Operators of the OM Ln 664
Railway companies that have operated the Ln 664, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| Gruppo Torinese Trasporti | GTT Ln 664 R.1-R.7 | Italy |
| Società Ferrovie Udine-Cividale | FUC Ln 664 | Italy |
Other OM models

OM
FS 235
Diesel locomotive
1957–1960

OM
ALn 773
Railcar
1956–1962 · 110 km/h

OM
D341-2
Diesel locomotive
1960–1963 · 110 km/h

OM
ALn 873
Railcar
1963–1966 · 110 km/h

OM
ALe 803
Electric multiple unit
1961–1973 · 130 km/h

OM
FUC AD
Railcar
1961 · 90 km/h

OM
ALe 540
Railcar
1955–1960 · 150 km/h

OM
ALe 840
Electric multiple unit
1950–1952 · 130 km/h







