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| Northern Ireland Railways Class 3000 "C3K" | |
|---|---|
_(cropped).jpg) 3000 Class DMU 3014 at Seahill in 2015 | |
 Refurbished interior of car 3509 of set 3009 | |
| In service | 2005–present |
| Manufacturer | CAF |
| Family name | CxK |
| Constructed | 2004–2005 |
| Number built | 23 sets |
| Formation | 3-car sets |
| Fleet numbers | 3001–3023 |
| Capacity | 201 seated, 280 standing passengers |
| Operators | NI Railways |
| Specifications | |
| Maximum speed | 90 mph (145 km/h) |
| Prime mover(s) | MAN D2876 LUH03 |
| Safety system(s) | AWS, TPWS, CAWS (3001-3006) |
| Track gauge | 1,600 mm (5 ft 3 in) |
The 3000 Class (C3K class) is a class of diesel multiple unit in service with NI Railways.