State Railway of Thailand ASR class

The State Railway of Thailand ASR class is a diesel multiple unit operated by the State Railway of Thailand. Built by British Rail Engineering Limited at Derby Litchurch Lane Works in England, it is based on the British Rail Class 158. Twenty carriages were built in 1990/91.^[1] All were painted in the same Regional Railways livery as the Class 158s.^[2][3]

State Railway of Thailand ASR class
Rapid no.998 stopping at Pattaya Railway Station on the Eastern Line
In service	1991 - present
Manufacturer	British Rail Engineering Limited
Built at	Derby Litchurch Lane Works
Family name	Sprinter
Entered service	1991
Number built	20
Fleet numbers	2501-2512 (Cab car) 2113-2120 (Power car)
Operators	State Railway of Thailand
Lines served	Eastern Line
Specifications
Car length	23.21 m (76 ft 2 in)
Width	2.7 m (8 ft 10 in)
Maximum speed	120 km/h (75 mph)
Traction system	DMU
Prime mover(s)	Cummins NT855
Braking system(s)	Air brake
Coupling system	Janney coupler
Seating	76
Track gauge	1,000 mm (3 ft 3+3⁄8 in)metre gauge