The Class 901 designation is used for two former British Rail Class 101 diesel multiple units converted for departmental use. They were reclassified from the Class 960 series in early 2004 by their owner Network Rail.
Class 901 (From Class 101) · Class 930 · Class 950 (Similar to Class 150) · Class 951 (From Classes 201, 203, 205, 207) · Class 960 (From Class 101, 107, 114, 117, 121, 122, DL)
Class 910 (From Class 488) · Class 920 · Class 930 · Class 931 · Class 932 · Class 933 · Class 935 · Class 936 (From Classes 311, 501) · Class 937 (From Classes 302, 308) · Class 960 (From Classes 309, 310) ·
APT-E · Multi-Purpose Vehicle · New Measurement Train · Parry People Movers 999 900
Diesel locomotives · Electric locomotives · Miscellaneous locomotives · Diesel multiple units · Electric multiple units · Departmental multiple units