SP 2971-2976
These 6 units were the only examples of model SD38-2 on the entire SP system. They were bought specifically to work the newly built West Colton hump yard with slugs rebuilt from ALCO C-628 and C-630 units.
SP 2971-2976 - built 4/1973 - builders numbers 72681-1 thru -6:
| SP 2971 | SP 2972 | SP 2973 | SP 2974 | SP 2975 |
| SP 2976 |