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British Rail Class 158

A class of 182 UK Diesel Multiple Units

British Rail Class 158 Express Sprinter is a type of diesel multiple unit (DMU) train. They were built for British Rail between 1989 and 1992 by BREL at their Derby Works. They were built to replace old DMUs and locomotive-hauled passenger trains. Class 159 trains are almost the same as Class 158s. They work many non-electrified services such as Exeter St David's To London Waterloo. They were among the last new trains in the UK to be built with the old toilet system which emptied directly onto the track.

British Rail Class 158 "Express Sprinter"
158791 Padley Wood crop.jpg
Northern Rail unit 158791
In serviceSince 1989
ManufacturerBREL
Built atDerby Works
Family nameSprinter
Constructed1989—1992
Number built182 trainsets
Number in service170 trainsets
Formation2 or 3 cars per trainset
Operator(s)Arriva Trains Wales
East Midlands Trains
First Great Western
First ScotRail
Northern Rail
South West Trains
Specifications
Car body constructionWelded aluminium
Car length22.16m
Width2.7
Articulated sectionsFlexible diaphragm within and between units
Maximum speed90 mph (140 km/h)
Weight37.8 t (37.2 long tons; 41.7 short tons) or
38.5 t (37.9 long tons; 42.4 short tons) per car
Traction systemDMU
Prime mover(s)Cummins NTA855R1,
Perkins 2006-TWH or
Cummins NTA855R3
Power output350 hp (260 kW) or
400 hp (300 kW) per engine
TransmissionVoith T211rz or T211rzz hydraulic and Gmeinder GM 190 final drive.
Braking system(s)Pneumatic, Disc
Safety system(s)AWS, TPWS
Track gauge1,435 mm (4 ft 8 12 in) standard gauge
158842 at Doncaster on 4 September 2007
Northern Rail 158904 in Metro livery at Doncaster on 3 November 2007
An Arriva Trains Wales Class 158 at Bristol
158954 at Newport in the current First Great Western livery
158725 on the Far North Line on 11 April 2008, whilst forming a First ScotRail serice to Wick
Northern Rail 158752 at Doncaster on 3 November 2007
158906 interior
158789 at Bristol Temple Meads on 7 December 2005, having formed a South West Trains service from London Waterloo