Rolling stock › In serviceData updated
Class 484
Former District line D78 Stock cars rebuilt by Vivarail as two-car trains for the Isle of Wight's Island Line. They replaced the 1938 Stock Class 483s in 2021.
Scale
Class 484 · indicative drawing GB Trains · gbtrains.uk/stock/484/ · CC BY 4.0
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- Type
- Electric multiple unit
- Builder
- Metro-Cammell, Birmingham (as London Underground D78 Stock); rebuilt by Vivarail, Long Marston
- Built
- 1978–1981 (as D78 Stock); rebuilt 2020–2021
- In service
- since 2021
- Operators
- South Western Railway
- Formation
- 2 cars
- Trains in fleet
- 5
- Fleets
- South Western Railway: 5
- Power
- DC third rail · how it works
- Bogies
- the D78 Stock's Adtranz flexible H-frame bogies · drawn with the same bogie component as Class 230, D78 Stock
- Car height
- 11 ft 11 in (3.63 m)
- Car width
- 9 ft 4 in (2.84 m)
- Status
- In service on the Island Line since 1 November 2021: five units.
unverified Some of these figures haven’t yet been checked against an official source or a published history. What’s in doubt ↓
Before this train
The Island Line's Class 483s were built as London Underground 1938 Stock and converted for the Isle of Wight from 1989. The last of them ran on 3 January 2021; the line then closed for upgrading, and the Class 484s, rebuilt from District line D78 Stock, replaced them.
Now Class 484 since 2021 · about 122 ft (37 m) · 2 cars
Before 1938 Stock as London Transport-style red (Isle of Wight, Class 483) 1989–2021 · about 108 ft (33 m) · 2 cars
Drawn at one scale, from their recorded dimensions. Compare them in full →
Car types
| Code | Car | Length | Doors per side |
|---|---|---|---|
| DM | Driving motor car (both cars of a unit) | 61 ft 2 in18.652 m |
Sources
How we source figures → · Spotted a mistake? Tell us → (opens in a new tab)
Show the 17 sources from Wikimedia Commons, South Western Railway, Vivarail and 6 more
- Class 484: a newer fleet for Island Line South Western Railway, accessed 6 October 2026five trains; former London Underground trains refurbished by Vivarail at Long Marston; replaced the Class 483s
- First Island Line train sets off as transformed railway re-opens Vivarail, November 2021first passenger train on 1 November 2021, Ryde St John's Road
- Class 484: trains for the Isle of Wight Vivarail, September 2019chosen in 2019; two-car, third-rail, ex-London Underground
- First Vivarail Island Line train delivered Rail, 2 December 2020 (issue 919)first unit delivered 19 November 2020; ex-District line; five two-car trains
- Rolling Stock Information Sheets (4th edition) Transport for London (released under FOI-0237-2223)D78 Stock: built by Metro-Cammell 1978-1981; driving motor car length, width, height, door opening
- FOI2025/000335: stock lists of train fleet (reply and 'SWR Fleet Vehicle Numbers' spreadsheet) South Western Railway (released under FOI via WhatDoTheyKnow), 17 June 2025unit and car numbers
- British Rail Class 484 Wikipedia, accessed 6 October 2026length over couplers; 750 V DC
- 484002 Arrives Shanklin Wikimedia Commons (CC BY-SA 4.0), 2022-05-12Island Line's livery on a Class 484
- Island Line upgrade means farewell to classic stock The Transport Network, 5 January 2021the Class 483s, built as 1938 London Underground stock, last ran on 3 January 2021; Class 484s, former District line trains, replace them
- British Rail Class 484 Wikipedia, accessed 6 October 2026bogies: the D78's bodyshells and bogies, modified for use on the National Rail network
- Rolling Stock Information Sheets (2nd edition) London Underground, March 2007, pp. 20-21the bogies' type, 7 ft 3 in (2,200 mm) wheelbase and 2 ft 7 in (790 mm) wheels (the D78's)
- D78 Stock photographs: 7537 at Upton Park (Oxyman, CC BY 2.5, 4 July 2008), D78 Bogie (Hahifuheho, CC0, 2009), 7059 (train_photos, CC BY-SA 2.0, 1 March 2014), D Stock at West Ham (Edgepedia, CC BY-SA 3.0, 26 July 2013) Wikimedia Commons, 2008-2014bogie layout, from the D78 Bogie photograph (layout only)
- British Rail Class 484 (Island Line livery), 2D side and front drawing K.Y. Chung, Nanyue Express (rail.kychung.com), supplied by Kyle, 12 October 2026the drawing's lines, proportions and layout: livery, cab side, roof, door panels, footstep, deflector, underframe cases
- 484001 Car 231 Fishbourne.jpg (photograph, CC BY-SA 4.0) Wikimedia Commons (James123pilbeam), 19 November 2020the driver's door and narrow window, the yellow line, the footstep (rectified)
- Class 484 D-Train EMU - 54789170476.jpg (photograph, CC BY-SA 4.0) Wikimedia Commons (Samson Ng, D201@EAL), 15 June 2025the sweep, the foot band, doors 3 and 4 navy, the barrier strip, the underframe zones
- 484005 at Shanklin 05.jpg and 06.jpg (photographs, CC BY 4.0) Wikimedia Commons (HJ Mitchell), 28 August 2025the deflector's yellow edge and the anticlimber
- 484004, Ryde Pier Head, March 3rd 2026 (photograph, CC BY-SA 4.0) Wikimedia Commons (Southsea_Matt), 3 March 2026the cab coupler: its kind, place and heights (set BC6, 20 October 2026; layout only for photographs)
unverified
- Dimensions are the D78 Stock driving motor car's (TfL: 60 ft 3 in (18,372 mm) over body ends, 9 ft 4 in (2,840 mm) wide, 11 ft 11 in (3,630 mm) high); that the rebuild kept them unchanged isn't confirmed. The 61 ft 2 in (18.652 m) over couplers is Wikipedia's
- Car designations: the FOI list numbers the cars 131-135 and 231-235; their official type codes weren't found
- Supply voltage: Wikipedia gives 750 V DC
- Seats and top speed: not found outside Wikipedia
- Bogies: that the Class 484s kept the D78's bogies rests on Wikipedia; no photograph of their bogies side on was found, so they're drawn as the D78's
- Doors: four single-leaf doorways a side, as the D78's (3 ft 8 in (1,127 mm) opening, TfL), placed as LU's sheet and Chung draw them; that the rebuild left them unchanged rests on photographs
- Underframe: the cases between the bogies are placed from K.Y. Chung's drawing and a photograph from above; their feet are estimates until a side-on photograph
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