Former Route Learning Unit
- former class 122
- carries loadhaul black and orange
- stored at Thornaby TMD
55012 LH -- HQ TE 55012
Class 930 3-Car Sandite / De-Icing Unit
- former class 205
- carries railtrack orange and brown livery.
- currently at St Leonards
930301 RO RT SU SE 977939 977940
spare RO RT SU SE 977870
spare RO RT SU SE 977364
Class 960 3-Car Ultrasonic Test Train
- converted from class 101
- carries network rail yellow livery
- conveys a converted mk2 coach in the centre
901001 NR SO ZA -- 977391 977392
Class 960 2-Car Video Survey unit 'Iris II'
- converted from class 101
- carries network rail yellow livery
901002 NR NR ZA -- 977693 977694
Class 960/0 Sandite/Route Learning Units
- converted from class 121/122
- route learning and sandite units
- 960010 carries BR Maroon livery
- 960012 carries South West Trains Outer Suburban Blue livery
- 960014 carries BR Blue and Grey livery
- 121129 carries Yellow livery with purple and blue branding
121129 ER ER HQ -- 977968
960010 XX RT AL -- 977858
960011 RT RT AF -- 977859
960012 SO SW BM -- 977860 John Cameron
960013 N RT AL AL 977866
960014 BG CH AL -- 977873
960015 NR RT AL -- 975042
960021 RO RT AL -- 977723
Class 960/2 Severn Tunnel Rescue Unit
- converted from class 121s - 121027/121031
- never seeing use, these vehicles are now stored at Severn Tunnel Junction.
960201 NR RT CF -- 977975
960202 NR RT CF -- 977976
Class 960 Water Cannon Unit
- converted from class 117 - 117308
- carries BR lined green livery
960301 GG CH AL -- 977987 977992 977988
Track Recording Unit
- purpose-built using class 150 bodyshells
950001 NR RT ZA -- 999600 999601