The EMD GP9 is a four-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between 1954 and 1959. The GP9 succeeded the GP7 as the second model of EMD's General Purpose (GP) line, incorporating a new sixteen-cylinder engine which generated 1,750 horsepower (1.30 MW). This locomotive type was offered both with and without control cabs; locomotives built without control cabs were called GP9B locomotives. EMD constructed 3,626 GP9s, including 165 GP9Bs. EMD designed the GP9 as an improved version of the GP7, with an increase in power from 1,500 hp to 1,750 hp, and a change in prime mover to the latest version of the 567 engine, the 567C. Externally, the GP9 strongly resembled its predecessor. Most were built with high short hoods, but the Southern Pacific ordered a number with low short hoods for improved crew visibility. EMD built GP9s at its LaGrange, Illinois facility until 1959
The DRGW roster information below by Jim Eager has not been updated since 2000. If you know any more about the deposition of any GP-9 listed below or you spot missing, inaccurate data, have model suggestion or a picture for any we'd love to see & hear about it. Contact the RGM&HS webmaster at: rgmhswebmaster@rgmhs.org.
| Horsepower | Wheel Arrangement | Gearing | Weight | Tractive Effort | DRGW Class | Builder |
| 1750 | B-B | 62:15 | 245646 (5901-5924) 250180 (5931-5954) |
60019 60770 |
DE B-B 60 DE B-B 61 |
EMD |
| Road # | EMD Builder # | Purchased | Retired | Notes |
| 5901 | 20515 | 5/1955 | 2/20/1972 | Trade in to EMD on GP40-2, 2/20/1972 |
| 5902 | 20516 | 5/1955 | 4/1984 | Received large Rio Grande lettering when repainted 10/1974 [LIST] Mid-America Car [167] To Austin & Northwestern #22 [167] Scrapped 1/1996 [167] |
| 5903 | 20517 | 5/1955 | 6/1991 | Received large Rio Grande logo [LIST] National Rail Rquipment Corporation, 9/1991[167] To South Orient #200 [167] |
| 5904 | 20518 | 5/1955 | 6/1991 | Repainted with large Rio Grande logo National Rail Equipment Corporation, 9/1991[167] To South Orient #201[167] To Dallas, Garland & N.E. #201, 1994 [167] To Mid-America Car, 1994 [167] To Midwest Rail Contractors #201, 1996 [167] |
| 5911 | 20519 | 5/1955 | 4/1984 | Received large Rio Grande logo [LIST] To Mid-America Car [167] Kyle Railways #5911 [167] Austin & Northwestern #33 [167] National Rail Equipment Corporation [167] Missouri & North Arkansas #4168, converted to slug [167] |
| 5912 | 20520 | 5/1955 | 10/1991 | Natrional Rail Equipment Corporation [167] |
| 5913 | 20521 | 5/1955 | 10/1991 | National Rail Equipment Corporation [167] |
| 5914 | 20522 | 5/1955 | 4/1984 | Mid-America Car [167] LORAM #401 [167] Habco-Loram #DC-1 [167] |
| 5921 | 20523 | 5/1955 | 6/1987 | Mid-America Car [167] Kyle Railways #5921 [167] San Diego & Imperial Valley #5911 [167] Missouri & North Arkansas # ? [167] |
| 5922 | 20524 | 5/1955 | 10/1991 | National Rail Equipment Corporation [167] South Orient #202 [167] Dallas, Garland & N. E., 1994 [167] NRW 12/1996 [167] |
| 5923 | 20525 | 6/1955 | 1/1977 | To Utah Power & Light, Castle Gate, UT, 1/1977 |
| 5924 | 20526 | 6/1955 | 10/1991 | National Rail Equipment Corporation [167] South Orient #205 [167] Mid-America Car, 1994 [167] Midwest Rail Contractors #205, 1996 [167] |
| 5931 | 22068 | 7/1956 | 10/1991 | National Rail Equipment Corporation [167] |
| 5932 | 22069 | 7/1956 | 4/1984 | Mid-America Car [167] Austin & Northwestern #55 [167] Central Oregon & Pacific [167] Scrapped, 9/1996, frame to Morrison-Knudsen [167] Used to build BLC MP1500D demonstrator MPEX #1501, 5/19/1997 [167] |
| 5933 | 22070 | 8/1956 | 5/10/1977 | Wrecked at Crater, CO, 7/19/1975 To Itel Equipment Management Co., 5/10/1977 To Illinois Central Gulf # 8203, 6/1977 [167] states that unit was rebuilt to ICG GP8 #7800, 7/1977 |
| 5934 | 22071 | 7/1956 | 10/1991 | National Rail Equipment Corporation [167] |
| 5941 | 22072 | 7/1956 | 10/1991 | National Rail Equipment Corporation [167] South Orient #204 [167] Sweetwater Central #204 [167] |
| 5942 | 22073 | 7/1956 | 10/1991 | Damaged on Monarch Branch, 9/16/1969. Rebuilt by EMD National Rail Equipment Corporation [167] South Orient #203 [167] Sweetwater Central #203 [167] |
| 5943 | 22074 | 7/1956 | 5/18/1977 | Damaged on Monarch Branch, 9/16/1969. Rebuilt by EMD Wrecked Salt Lake City, UT, 4/19/1976 To Itel Equipment Management 5/18/1977 To Illinois Central Gulf # 8323, 6/1977 |
| 5944 | 22075 | 7/1956 | 4/1984 | Mid-America Car [167] Austin & Northwester #44 [167] Central Oregon & Pacific [167] Scrapped, 9/1996, frame to Morrison-Knudsen [167] |
| 5951 | 22076 | 7/1956 | 10/1991 | National Rail Equipment Corporation [167] |
| 5952 | 22077 | 7/1956 | 4/1984 | Mid-America Car [167] Austin & Northwestern #11 [167] Missouri & North Arkansas #4164, slug [167] |
| 5953 | 22078 | 7/1956 | 10/1991 | National Rail Equipment Corporation [167] |
| 5954 | 22079 | 7/1956 | 10/1991 | Received large Rio Grande logo [LIST] National Rail Equipment Corporation [167] |
