The EMD SD7 is a model of 6-axle diesel locomotive built by General Motors Electro-Motive Division between May 1951 and November 1953. It had an EMD 567B 16- cylinder engine producing 1,500 horsepower (1.12 MW) for its six traction motors.

Dec 17, 2024 · The SD7 was the Geep's larger cousin, sporting a C-C truck arrangement that offered greater tractive effort on a longer frame but was otherwise identical. At the time, there was little interest in such a design; comparable models sold by …

EMD SD7; Data Sheet Information Compiled by: JEAN-DENIS BACHAND: Revised: 10 Feb. 2014 : Artwork by: Jean-Denis Bachand-Engine Builder: EMD: Engine: 567B 16 cylinder

May 16, 2023 · EMD produced 188 SD7s and 471 SD9s spanning a collective production run of just over seven years, from 1952 to 1959. Surprisingly, a handful of these locomotives are still in revenue service, with others scattered about at museums and industrial sites across the country.

Jun 30, 2009 · The Electromotive Division SD7 is a 6 axle, 1,500 HP diesel-electric locomotive built by EMD from 1952 to 1953. Like the 4 axle GP7 , it uses a 16 cylinder 567B prime mover rated at 1,500 HP. The SD7 was the first 6 axle freight locomotive built by EMD.

Jan 1, 2025 · Chicago Burlington & Quincy Railroad SD7 407 at Lincoln, Nebraska on an unknown date in 1960, photograph by Dick Rumbolz, Chuck Zeiler collection. Built in December 1952 ( c/n 17403 ) on EMD Order 5140, it became BN 6055 and was retired in March 1983.

Mar 18, 2025 · EMD published the SD7 locomotive schematic wiring diagram along with a chart of the electrical symbols used in their diagrams, in the back of the SD7 locomotive operators manual. These are commonly found for $15 to $30 on eBay. There is one listed today. Use the search string "EMD Manual SD7" on eBay to locate it.

Thanks to requests from railroads, EMD’s engineering staff began work on a longer six-axle version, the SD7, with the additional two axles with traction motors providing more tractive effort as well as improved weight distribution, a Special Duty diesel-electric locomotive ideal for use in heavy duty, low-speed service.

The Rapido Trains HO scale EMD SD7, SD9 and SD10 Locomotive features: Measured from a living SD9; Road-specific details for each model variant; Separate grab irons and handrails installed at the factory; Operating headlights, rear lights, white class lights AND beacons (where appropriate). Highly detailed cab interior

The EMD SD9 is a model of diesel locomotive built by General Motors Electro-Motive Division between January 1954 and June 1959. An EMD 567C 16- cylinder engine generated 1,750 horsepower (1.30 MW). Externally similar to its predecessor, the SD7 , the SD9 was built with the improved and much more maintainable 567C engine.