The EMD SD40 is an American 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between January 1966 and August 1972. 1,268 locomotives were built between 1966 and 1972. In 1972, an improved version with new electronics was developed and marketed as a new locomotive, the SD40-2.

In 1993, SP contracted with Morrison Knudsen to supply 133 SD40M-2's, as part of the contract, SP was to supply no carbodies or shells. This sparked a frantic search for 133 six axle locos suitable for rebuilding.

The EMD SD40-2 is a 3,000-horsepower (2,200 kW) C-C diesel–electric locomotive built by EMD from 1972 to 1980. The SD40-2 was introduced in January 1972 as part of EMD's Dash 2 series, competing against the GE U30C.

SP SD40M-2 page. This page is dedicated to SP's fleet of 133 locomotives rebuilt to SD40-2 standards by Morrison-Knudsen from a variety of original EMD models including SD40, SD45 and SDP45 (EL/CR.) These locomotives, although externally different, were all …

SP received two orders of SD40's, the first #8400-8478 in 1966, the second #8479-8488 in 1968. Both orders look to have had large snowplows and SP's 5-light show on the front only, except the first order has a ratchet handbrake in the nose.

Ex-SP, Rebuilt from SD45. Sold to MNA, to KYLE. The Missouri-Kansas-Texas Heritage Locomotive led UP Train ZYCHOB 10 down the UP Jonesboro Sub. on a nice sunny morning. The Katy hadn't led through here very often, and this was the …

The EMD SD40M-2 is a series of American diesel locomotives that were rebuilt from EMD SD39, EMD SD40 and EMD SD45 diesel locomotives, and many of them were built for several railroads all across United States of America and even as far as Canada.

Electro-Motive SD40M-2 Diesels 5485 was built in January 1967, #32692, FN 7951-4, as Denver & Rio Grande Western 5318, Class DE C-C 98, SD45. It was reclassified as Class EF636D-1 and retired in December 1993.

Feb 20, 2025 · It was 65 feet, 9 ½ inches in length sporting standard Flexicoil trucks, the Spartan Cab, and EMD's now-classic road-switcher carbody. A keen eye, however, will note the SD40's additional rear roof radiator fan (three) and rectangular turbocharger stack located slightly forward of the dynamic brake blister.

As you should be aware from reading the SD40M-2 Info page, SP received 133 SD40M-2's from Morrison-Knudsen, with 3 distinct body styles. The difficulty rating of modeling any of the SD40M-2's, will depend on how accurate you want to be.