SOU U23B
This page is dedicated to SOU's fleet of U23B cab units. The SOU was the owner of 70 U23B units, all built with high short hoods. The first 35 had AAR type-B trucks while the remainder had FB-2 type trucks.
Original orders:
| Orig. road numbers | model | GE serial no. | build date | notes |
| SOU 3900-3904 | U23B | 38392-38396 | 5/1972 | high hood; AAR type-B trucks |
| SOU 3905-3914 | U23B | 39215-39224 | 5/1973 | high hood; AAR type-B trucks |
| SOU 3915-3934 | U23B | 39621-39640 | 5-6/1974 | high hood; AAR type-B trucks |
| SOU 3935-3954 | U23B | 40078-40097 | 5-7/1975 | high hood; FB-2 trucks |
| SOU 3955-3969 | U23B | 41508-41522 | 12/1976-2/1977 | high hood; FB-2 trucks |
U23B: SOU 3900 38392 5/1972 to NS 3900 SOU 3901 38393 5/1972 to NS 3901 SOU 3902 38394 5/1972 to NS 3902 SOU 3903 38395 5/1972 to NS 3903 SOU 3904 38396 5/1972 to NS 3904 SOU 3905 39215 5/1973 to NS 3905 SOU 3906 39216 5/1973 to NS 3906 SOU 3907 39217 5/1973 to NS 3907 SOU 3908 39218 5/1973 to NS 3908 SOU 3909 39219 5/1973 to NS 3909 SOU 3910 39220 5/1973 to NS 3910 SOU 3911 39221 5/1973 to NS 3911 SOU 3912 39222 5/1973 to NS 3912 SOU 3913 39223 5/1973 to NS 3913 SOU 3914 39224 5/1973 to NS 3914 SOU 3915 39621 5-6/1974 to NS 3915 SOU 3916 39622 5-6/1974 to NS 3916 SOU 3917 39623 5-6/1974 to NS 3917 SOU 3918 39624 5-6/1974 to NS 3918 SOU 3919 39625 5-6/1974 to NS 3919 SOU 3920 39626 5-6/1974 to NS 3920 SOU 3921 39627 5-6/1974 to NS 3921 SOU 3922 39628 5-6/1974 to NS 3922 SOU 3923 39629 5-6/1974 to NS 3923 SOU 3924 39630 5-6/1974 to NS 3924 SOU 3925 39631 5-6/1974 to NS 3925 SOU 3926 39632 5-6/1974 to NS 3926 SOU 3927 39633 5-6/1974 to NS 3927 SOU 3928 39634 5-6/1974 to NS 3928 SOU 3929 39635 5-6/1974 to NS 3929 SOU 3930 39636 5-6/1974 to NS 3930 SOU 3931 39637 5-6/1974 to NS 3931 SOU 3932 39638 5-6/1974 to NS 3932 SOU 3933 39639 5-6/1974 to NS 3933 SOU 3934 39640 5-6/1974 to NS 3934 SOU 3935 40078 5-7/1975 to NS 3935 SOU 3936 40079 5-7/1975 to NS 3936 SOU 3937 40080 5-7/1975 to NS 3937 SOU 3938 40081 5-7/1975 to NS 3938 SOU 3939 40082 5-7/1975 to NS 3939 SOU 3940 40083 5-7/1975 to NS 3940 SOU 3941 40084 5-7/1975 to NS 3941 SOU 3942 40085 5-7/1975 to NS 3942 SOU 3943 40086 5-7/1975 to NS 3943 SOU 3944 40087 5-7/1975 to NS 3944 SOU 3945 40088 5-7/1975 to NS 3945 SOU 3946 40089 5-7/1975 to NS 3946 SOU 3947 40090 5-7/1975 to NS 3947 SOU 3948 40091 5-7/1975 to NS 3948 SOU 3949 40092 5-7/1975 to NS 3949 SOU 3950 40093 5-7/1975 to NS 3950 SOU 3951 40094 5-7/1975 to NS 3951 SOU 3952 40095 5-7/1975 to NS 3952 SOU 3953 40096 5-7/1975 to NS 3953 SOU 3954 40097 5-7/1975 to NS 3954 SOU 3955 41508 12/1976-2/1977 to NS 3955 SOU 3956 41509 12/1976-2/1977 to NS 3956 SOU 3957 41510 12/1976-2/1977 to NS 3957 SOU 3958 41511 12/1976-2/1977 to NS 3958 SOU 3959 41512 12/1976-2/1977 to NS 3959 SOU 3960 41513 12/1976-2/1977 to NS 3960 SOU 3961 41514 12/1976-2/1977 to NS 3961 SOU 3962 41515 12/1976-2/1977 to NS 3962 SOU 3963 41516 12/1976-2/1977 to NS 3963 SOU 3964 41517 12/1976-2/1977 to NS 3964 SOU 3965 41518 12/1976-2/1977 to NS 3965 SOU 3966 41519 12/1976-2/1977 to NS 3966 SOU 3967 41520 12/1976-2/1977 to NS 3967 SOU 3968 41521 12/1976-2/1977 to NS 3968 SOU 3969 41522 12/1976-2/1977 to NS 3969