SD9 Diesel Locomotive
Prototype Information
The EMD SD9 debuted in January 1954 as the follow-up to the SD7 and quickly became the standard for six-axle road switchers. EMD upgraded the design with the 16-cylinder 567C diesel engine, boosting output to 1,750 horsepower. Like its predecessor, the SD9 rode on C-C Flexicoil trucks, giving it strong tractive effort and excellent weight distribution—perfect for heavy freight, steep grades, and lighter branch lines where four-axle locomotives struggled.
Production ran until 1959, with 515 units built for North American railroads and industrial users, plus a handful for export. Railroads such as the Southern Pacific, Great Northern, Milwaukee Road, and Nickel Plate Road made the SD9 a backbone of their motive power fleets.
The SD9’s combination of power and reliability earned it long careers—many ran into the 1980s and beyond, with rebuild programs extending their service life as SD9Es or SD9Rs. A number survive today in museums, on tourist lines, and even in shortline service.
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Atlas N SD9 Burlington Northern w/ DCC & Sound
$191.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Burlington Northern w/ Speaker
$109.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Central of Georgia w/ DCC & Sound
$191.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Central of Georgia w/ Speaker
$109.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Conrail w/ DCC & Sound
$191.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Conrail w/ Speaker
$109.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Montana Rail Link w/ DCC & Sound
$191.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Montana Rail Link w/ Speaker
$109.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Southern Pacific w/ DCC & Sound
$191.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Southern Pacific w/ Speaker
$109.00 Select options This product has multiple variants. The options may be chosen on the product page -
Atlas N SD9 Undecorated w/ Dynamic Brakes & Speaker
$101.00 Add to cart -
Atlas N SD9 Undecorated w/o Dynamic Brakes w/ Speaker
$101.00 Add to cart
