Last updated: 19 Jan 1997 Numbers Number Model Notes 51-69 19 GP40WH-2 MK rebuilds from GP40 70-75 6 GP39H-2 MK rebuilds from GP40 7100 1 HEP/CC converted F unit 91,92 2 E9AM MK rebuilds from E8A 100-102 3 RS3M 4900-4903 4 AEM7 4904-4909 6 Electric On order