EMD SD9 - Standard DC -- Southern Pacific(TM) 4378 (gray, red, white)

EMD SD9 - Standard DC -- Southern Pacific(TM) 4378 (gray, red, white)

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  • Southern Pacific
  • Walthers Part # 920-48635
    p. 42 2020 HO Scale Reference Book p. 32 2019 HO Scale Reference Book

Product Information

Power up your HO freight operations with Walthers Proto SD9 diesels!
The debut of the SD9 in 1954 marked the next step forward for EMD's Special Duty line of six-axle diesels, and introduced the new 567C prime mover delivering 1,750 horsepower. Ideal for demanding assignments in helper, yard, transfer and heavy freight service, with its weight spread over six axles, the SD9 was also well suited to branch line duties. By the time production ended in 1959, 515 SD9s were in service on over a dozen railroads and some are still going strong after 50+ years of service!
From superb paint and lettering to railroad-specific details, WalthersProto SD9 locos come ready for service and feature:
  • Limited edition - one-time run of these configurations
  • 5 pole, skew-wound, high-torque, high-efficiency can motor
  • Helical gears with 14:1 ratio for smooth, quiet running
  • Easy multiple-unit operation
  • Superb paint & lettering
  • LED constant & directional headlights
  • Heavy die-cast metal underframe
  • Proto MAX(TM) metal knuckle couplers


Based on Phase II (also known as Phase 2) units in service from early 1970s to early 1990s with:
  • 5 Light package with:
    • Round Gyralight "Undesired Emergency" red light (non-operating on DC units
    • Dual Mars warning light (Forward only on DC units)
    • Pyle dual sealed beam headlight
  • SP style plows
  • Nathan P3 air horn
  • Whip-style radio antenna
  • Farr air filter box
  • Electrical cabinet rain guard
  • Rolled-style handrail stanchions
  • Modern style uncoupling levers

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