Chesapeake & Ohio (C&O) Diesel Roster: All-Time
Published: March 15, 2025
By: Adam Burns
The C&O operated diesels from nearly every major builder including Electro-Motive, Alco, General Electric, and even a few models from Baldwin. Interestingly, the railroad never purchased any Fairbanks-Morse products.
The C&O's first-generation road power primarily consisted of EMD products while second-generation products included both EMD and General Electric. The railroad's final new units included a group of SD50s acquired in 1984/1985.
The information presented here provides a complete, all-time Chesapeake & Ohio diesel roster. The railroad was late to the diesel era thanks to its strong commitment to steam technology as a result of its considerable coal business.
Chessie System (Chesapeake & Ohio) GP40-2's in Chicago; April 28, 1973. American-Rails.com collection.Switchers
| Original Road Number(s) | Second Road Number(s) | Third Road Number(s) | Builder/Model | Construction Number(s) | Date Built |
|---|---|---|---|---|---|
| Fort Street Union Depot 1-2 | - | - | EMD NW5 | 4148-4149 | 1/1947-2/1947 |
| Manistee & North Eastern 1 | 8303 | - | GE 44-Tonner | 28501 | 8/1946 |
| Manistee & North Eastern 2-3 | 5297-5298 | - | EMD NW2 | 5555-5556 | 5/1948 |
| Pere Marquette 10-11 | 8401 (ex-#11) | - | EMC SW1 | 902, 1714 | 7/1939, 4/1942 |
| Pere Marquette 20-22 | 20-22 | - | GE 70-tonner | 28506, 28508, 28510 | 12/1946 |
| Pere Marquette 51-64 | 5275-5289 (no #5279) | - | EMD NW2 | 1715-1718, 3463-3472 | 10/1942-5/1946 |
| 1850-1856 | 9558-9565 (ex-#1850-1856, #1858) | - | EMD NW2 | 6268-6274 | 11/1948-12/1948 |
| 5000-5057 | 9165 (ex-#5015), 9168-9169 (ex-#5022 and #5025), 9172-9175 (ex-#5033, 5036, 5045-5046), 9179 (ex-#5051) | - | Alco S2 | 76770, 76771, 76781-76783, 77130-77150, 77165, 77796-77813, 77827, 77828, 77941-77945, 76897-76902 | 5/1949-1/1950 |
| 5060-5079 | 9160-9164 (ex-#5000, 5005-5006, 5011-5012) | - | EMD NW2 | 10381-10386, 10367-10380 | 6/1949-9/1949 |
| 5080-5093 | - | - | EMD SW9 | 11713-11722, 17262-17263, 19298-19299 | 4/1952-12/1953 |
| Baltimore & Ohio 480/9024 | 5100 (2nd) | - | Alco S2 | 70253 | 9/1943 |
| 5100-5113 | - | - | Alco S4 | 80622-80626, 80629-80637 | 7/1953-9/1953 |
| 5200-5213 | - | - | EMD NW2 | 10259-10272 | 8/1949-11/1949 |
| 5214-5239 | - | - | EMD SW7 | 10273-10298 | 1/1950-3/1950 |
| 5240-5244 | - | - | GMD SW9 | A149-A153 | 1/1951-2/1951 |
| 5245-5265 | - | - | EMD SW9 | 15504-15524 | 10/1951-11/1951 |
| 6000A and 6000B (Cow-Calf) | - | - | EMD TR4A and TR4B | 11945-11946 | 6/1950 |
| 6001A and 6001B (Cow-Calf) | - | - | EMD TR4A and TR4B | 11947-11948 | 6/1950 |
| 6500A/B/C (Herd) | - | - | EMD TR3A/B/C | 10253-10255 | 10/1949 |
| 6501A/B/C (Herd) | - | - | EMD TR3A/B/C | 10256-10258 | 10/1949 |
| B&OCT 219/8419 | - | - | EMD SW1 | 1604 | 5/1942 |
| Baltimore & Ohio 9099 | 9164 (2nd) | - | Alco S4 | 81972 | 6/1956 |
| 6500A, 6501C, 6500B, 6501A, 6500C, 6501B | 9552-9557 | - | EMD TR3A/B/C | - | 10/1949 |
| 6000A, 6000B, 6001A, 6001B | 9622-9625 | - | EMD TR4A/B | - | 6/1950 |
Classic Road-Switchers
| Original Road Number(s) | Second Road Number(s) | Third Road Number(s) | Builder/Model | Construction Number(s) | Date Built |
|---|---|---|---|---|---|
| 80-85 | 1839 (ex-83) | - | EMD BL2 | 4724-4729 | 6/1948-7/1948 |
| 1800-1818 | - | - | EMD SD18 | 27598-27616 | 1/1963-3/1963 |
| 1840-1847 | - | - | EMD BL2 | 6275-6281 | 10/1948-3/1949 |
| 1840-1847 | - | - | Alco RSD5 | 79427-79431 | 10/1948-3/1949 |
| 5570-5595 | 2000-2006 (ex-5574-5576, 5587, 5589, 5591, 5592) | - | Alco RSD5 | 79427-79431, 79702-79706, 79945-79954, 80189-80194 | 3/1952-7/1952 |
| 6700-6709 | 2007-2016 | - | Alco RSD12 | 81943-81952 | 4/1956-5/1956 |
| 2100-2103 | - | - | Alco C630 | S-3486-01 thru S-3486-04 | 10/1967 |
| 5114-5115 | - | - | Alco RS1 | 5114, 5115 | 9/1953 |
| 5500-5501 | - | - | Alco RS2 | 76826-76827 | 5/1949 |
| 5530-5532 | 2200 (5530) | - | BLW DRS-6-6-1500 | 74701-74703 | 11/1949 |
| 5533-5550, 5551-5558, 5559-5569, 5528-5529 | 2202-2209 (ex-5534-5542), 2211-2231 (ex-5546-5566), 2232-2233 (ex-5528-5529) | - | BLW AS616 | 74917-747929, 74951, 74966-74969, 75171-75178, 75345-75355, 75391-75392 | 11/1950-7/1953 |
| 5570-5595 | - | - | Alco RSD5 | 79427-79431, 79702-79706, 79945-79954, 80189-80194 | 3/1952-7/1952 |
| 5600-5601 | - | - | Alco RS3 | 81160, 81161 | 4/1955 |
| 5700-5709, 5715-5719, 5710-5714, 5739-5797, 5800-5811, 5812-5828, 5831-5839, 5829-5830, 5840-5855, 5862-5885, 5860-5861, 5898-5900, 5886-5897, 5856-5859 | - | - | EMD GP7 | 10129-10143, 10532-10536, 15245-15303, 16692-16703, 17033-17049, 17278-17286, 17287-17288, 17289-17304, 18036-18059, 18060-18061, 18062-18064, 18065-18076, 18077-18080 | 4/1950-4/1953 |
| 5720-5735, 5736-5738 | - | - | GMD GP7 | A154-A169, A239-A241 | 3/1951-6/1951 |
| 5901-5919, 5929-5937, 5938-6008, 5920-5928, 6009-6082, 6083-6088, 6109-6158, 6089-6108, 6159-6263 | - | - | EMD GP9 | 20183-20201, 20646-20654, 20847-20886, 21026-21045, 21182-21192, 21193-21201, 21487-21511, 21524-21538, 21686-21719, 21720-21725, 22017-22051, 22052-22066, 22090-22109, 22540-22547, 22550-22591, 23368-23397, 23501-23525 | 12/1954-8/1957 |
| 6700-6709 | - | - | Alco RSD12 | 81943-81952 | 4/1956-5/1956 |
| 6800-6811 | - | - | Alco RSD7 | 81901-81912 | 2/1956-4/1956 |
Contemporary Road-Switchers
| Original Road Number(s) | Second Road Number(s) | Third Road Number(s) | Builder/Model | Construction Number(s) | Date Built |
|---|---|---|---|---|---|
| 1800-1818 | 7300-7318 | - | EMD SD18 | 27598-27616 | 1/1963-3/1963 |
| 2300-2329 | - | - | GE U23B (equipped with Blomberg trucks) | 37228-37257 | 9/1969-10/1969 |
| 2500-2537 | 8100-8137 | - | GE U25B | 34566-34570, 34724-34726, 34731-34760 | 8/1963-1/1964 |
| 3000-3047 | - | - | EMD GP30 | 27584-27597, 27798-27799, 28410-28411, 28494-28519, 28520-28521, 28522-28523 | 8/1962-10/1963 |
| 3045 (2nd), 3047 (2nd) | 3583-3584 | - | EMD GP35 | 30987-30988 | 9/1965 |
| 3300-3312 | - | - | GE U30C | 36300-36303, 36767-36775 | 6/1967-7/1968 |
| 3520-3539 | - | - | EMD GP35 | 29110-29129 | 4/1964-6/1964 |
| 3560-3575 | - | - | EMD GP35 | 29392-29407 | 9/1964-11/1964 |
| 3537, 3563 (2nd), 3574 (2nd) | - | - | EMD GP35 | 30989-30991 | 9/1965 |
| 3582 | - | - | EMD GP35 | 31439 | 12/1965 |
| 3850-3899 | - | - | EMD GP38 | 33681-33730 | 11/1967-12/1967 |
| 3900-3919 | - | - | EMD GP39 | 34784-34804 | 5/1969-7/1969 |
| 4065-4089 | - | - | EMD GP40 | 38545-38569 | 5/1971-8/1971 |
| 4090 | - | - | EMD GP40 | 39236 | 12/1971 |
| 4091-4099, 3780-3794 | - | - | EMD GP40 | 39237-39260 | 12/1971 |
| 4165-4184 | - | - | EMD GP40-2 | 7394-1 thru 7394-20 | 11/1972 |
| 4262-4281 | - | - | EMD GP40-2 | 776085-1 thru 776085-20 | 1/1978 |
| 4282-4286 | - | - | EMD GP40-2 | 777094-1 thru 777094-5 | 2/1978-3/1978 |
| 4372-4391 | - | - | EMD GP40-2 | 786288-1 thru 786288-20 | 1/1980 |
| 4392-4421 | - | - | EMD GP40-2 | 787289-1 thru 787289-30 | 2/1980-3/1980 |
| 4820-4829 | - | - | EMD GP38 | 36666-36675 | 7/1970-8/1970 |
| 7420-7431 | - | - | EMD SD35 | 29428-29439 | 9/1964-11/1964 |
| 7425 (2nd) | - | - | EMD SD35 | 30741 | 8/1965 |
| 7428 (2nd) | - | - | EMD SD35 | 30740 | 8/1965 |
| 7450-7469, 7475-7481, 7501-7536 | - | - | EMD SD40 | 31929-31948, 33154-33160, 34779-34784, 36696-36705, 36746-36755, 37204-37213 | 7/1966-3/1971 |
| 8200-8222 | - | - | GE U30B | 38218-38227, 38475-38487 | 12/1971-12/1972 |
| 8223-8224 (ex-demonstrators #301-302) | - | - | GE U30B | 35880-35881 | 5/1966 |
| 8225-8234 | - | - | GE U30B | 40068-40077 | 12/1974 |
| 8235-8298 | - | - | GE B30-7 | 41897-41906, 42138-42147, 42279-42288, 42770-42783, 43256-43275 | 5/1978-5/1981 |
| 8553-8575, 8624-8643 | - | - | EMD SD50 | 837057-1 thru 837057-23, 857095-1 thru 857095-20 | 1/1984-11/1985 |
Passenger Cab Units
| Original Road Number(s) | Second Road Number(s) | Third Road Number(s) | Builder/Model | Construction Number(s) | Date Built |
|---|---|---|---|---|---|
| 95-98 | 4520-4521 (ex-PM 95-96) | 1418-1419 | EMD E7A | 6262-6265 | 7/1948 |
| Pere Marquette 101-108 | 4510-4515 (ex-103-108) | 1414-1417 (ex-4512, 4515) | EMD E7A | 2911-2912, 4252-4255, 4722-4723 | 6/1946, 4/1947, 8/1947 |
| 4522-4523 (ex-PM 102, 98) | - | - | EMD E7A | 6265, 2912 | 7/1948, 6/1946 |
| 4000-4026 | 1468-1473 (ex-4003, 4016, 4025-4028) | - | EMD E8A | 14759-14785 | 8/1951-1/1952 |
| 4027-4030 | - | - | EMD E8A | 4027-4030 | 4/1953 |
| 8000-8013 | - | - | EMD FP7 | 16050-16063 | 2/1952-4/1952 |
| 8014-8015 | 7094-7095 | - | EMD FP7 | 17490-17491 | 12/1952 |
Freight Cab Units
| Original Road Number(s) | Second Road Number(s) | Third Road Number(s) | Builder/Model | Construction Number(s) | Date Built |
|---|---|---|---|---|---|
| 7000-7015 | - | - | EMD F7A | 9728-9743 | 9/1950 |
| 7016-7031 | - | - | EMD F7A | 11842-11857 | 9/1950 |
| 7032-7085 | - | - | EMD F7A | 15969-16022 | 1/1952-5/1952 |
| 7086-7093 | - | - | EMD F7A | 17264-17271 | 10/1952-11/1952 |
| 7500-7515 | - | - | EMD F7B | 11858-11873 | 9/1950 |
| 7516-7542 | - | - | EMD F7B | 16023-16049 | 1/1952 -5/1952 |
| 7543-7546 | - | - | EMD F7B | 17272-17275 | 10/1952-11/1952 |
| 8500-8506 | - | - | EMD F7B | 16064-16070 | 2/1952-4/1952 |
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