Rolling stock › In serviceData updated
TfW Premier (Class 67 and Mark 4)
Transport for Wales's locomotive-hauled intercity trains, with first class and a restaurant car: a DB Cargo Class 67 at one end, Mark 4 coaches built for the East Coast main line around 1990 and a driving van trailer at the other. They run Holyhead to Cardiff and Manchester to Cardiff and Swansea.
Drawing to come
- Type
- Diesel-electric locomotive and coaches
- Builder
- Alstom, Valencia (Class 67); Metro-Cammell (Mark 4 coaches)
- In service
- since 2021
- Operators
- Transport for Wales
- Formation
- A Class 67 locomotive and five Mark 4 coaches (an open first, a kitchen buffet and three open standards), with a driving van trailer at the other end
- Trains in fleet
- 7
- Fleets
- Transport for Wales: 7
- Top speed
- 125 mph (Class 67); the Mark 4s were designed for 140 mph
- Power
- Diesel-electric locomotive (General Motors 12N-710G3B-EC engine, 3,200 hp or 2,385 kW) at one end, and a driving van trailer at the other for push-pull working
- Profile
- main-line
- Seats per train
- 287
- Total capacity
- 41 first class and 246 standard, plus 4 tip-up seats, a set (TfW's fleet guide, June 2026); a restaurant car; two wheelchair spaces in each class; five cycle spaces
- Status
- In service: seven five-coach sets (June 2026); an eighth, HD08, was being formed in 2025 but delayed to 2026. Twelve Class 67s have been modified to work with them, hired from DB Cargo. No withdrawal date has been published; in May 2025 TfW planned overhauls of eight rakes between October 2025 and October 2027.
Car types
| Code | Car | Length | Doors per side |
|---|---|---|---|
| 67 | Class 67 locomotive | 19.71 m | |
| FO | Mark 4 open first (FO, 113xx) | 23.40 m | 2 single |
| RB | Mark 4 kitchen buffet (103xx): TfW's restaurant car | 23.40 m | 1 single |
| TSO | Mark 4 open standard (TSO, 12xxx) | 23.40 m | 2 single |
| DVT | Mark 4 driving van trailer (DVT, 822xx) | 18.60 m |
Sources
- A guide to our fleet of trains: fleet accessibility specifications (V3, updated June 2026), Transport for Wales, June 2026 (seven trains of five coaches; built 1989-1992; 246 standard, 41 first and 4 tip-up seats; restaurant car; routes (June 2026))
- First electric trains to be introduced to South Wales Metro, Transport for Wales, 17 November 2024 (seven premier class Mark 4 trains introduced (November 2024))
- Transport for Wales introduce premium trains, Transport for Wales, 7 June 2021 (first Mark 4 train from Holyhead to Cardiff, 7 June 2021; 30 more Mark 4s bought for Swansea to Manchester, four trains of five coaches with first class and a buffet)
- EXCLUSIVE: Summer start for Transport for Wales Mk4 coaches between Holyhead and Cardiff, RailAdvent, 14 January 2021 (three sets of four Mark 4s and a DVT, with Class 67s 67008, 67017 and 67025 leased from DB Cargo)
- New Mk4 trains introduced by Transport for Wales as Ex-Grand Central coaches purchased, RailAdvent, 7 June 2021 (ex-LNER and ex-Grand Central coaches and DVTs, worked by DB Cargo Class 67s)
- TfW takes on 30 more Mk 4s as Holyhead-Cardiff train resumes, Modern Railways, June 2021 (former LNER Mark 4s and DVTs with DB Cargo Class 67s; 30 more bought, four five-coach sets)
- More Welsh Mk 4s to enter service, Modern Railways, 18 August 2021 (three pairs of Holyhead to Cardiff services from September 2021; restaurant service from 20 September; the Mark 4s were due in December 2019 to replace Mark 3s)
- Transport for Wales Mk4 set involved in collision returns with 'new' DVT, RAIL, 23 September 2025 (set HD02 (DVT 82220, open first 11316, kitchen buffet 10328, open standards 12526, 12219 and 12304) back after the Leominster collision of 22 May 2025; HD08 delayed)
- Purchase of Mk4 OH2 Minus Rakes and Respray (pipeline notice 025562-2025), Find a Tender (Transport for Wales Rail Limited), 23 May 2025 (overhaul of 8 Mark 4 rakes and respray of 3, 1 October 2025 to 1 October 2027)
- Our fleet, DB Cargo UK, archived 9 June 2026 (Class 67: 19.71 m, 88-90 t, 125 mph, 3,200 bhp, built by Alstom at Valencia; 28 in DB Cargo's fleet)
- Discover the Fleet: Class 67 Locomotives (V3, changes to 31 January 2026), The 225 Group, February 2026 (30 built by Alstom at Valencia, 1999-2000; GM 12N-710G3B-EC, 2,385 kW; 125 mph; 19.68 x 3.88 x 2.66 m; twelve modified for push-pull with TfW's Mark 4s; DB Cargo's hire pool for TfW)
- Mark 4 coaches, Eversholt Rail (Mark 4 coaches 23.4 m and DVT 18.6 m)
unverified coach order: RAIL (2025) lists one set's vehicles (a DVT, an open first, a kitchen buffet and three open standards) but not their order; the formation is written in an assumed order, five coaches in every set: TfW's guide says 'seven trains of five coaches'. The first three sets, from 2021, had four coaches and a DVT (RailAdvent, January 2021); no source read says when they were lengthened, Class 67 length: DB Cargo gives 19.71 m; the 225 Group gives 19.68 m, with 3.88 m high and 2.66 m wide, Mark 4 dimensions: 23.4 m coaches and 18.6 m DVT are Eversholt's figures for LNER's Mark 4s, the same type; height and width not given (the site's InterCity 225 drawing measures 3.768 m high from LNER's artwork), doors: one single-leaf door at each end of each coach side, and one on the kitchen buffet, as on LNER's Mark 4s (the site's InterCity 225 record); not checked on TfW's vehicles, the Class 67s: twelve modified for push-pull with TfW's Mark 4s (the 225 Group, an InterCity 225 heritage group, February 2026). Wikipedia, citing Railways Illustrated (June 2024), says TfW bought two of them; the 225 Group's table is unclear on which, five cycle spaces 'within separate engine carriage' (TfW's guide): presumably the DVT's van space; not confirmed, built: the Mark 4s in 1989-1992 (TfW) and the Class 67s in 1999-2000 (225 Group); left null because the set has two build dates, service speed: line speeds on TfW's routes, not 125 mph, limit them; no source gives their timetabled top speed