The EMD SD22ECO is a 2,150 hp (1,600 kW) C-C diesel-electric locomotive rebuilt by Electro-Motive Diesel. It is, along with the GP22ECO, primarily the application of a conversion kit to an existing EMD SD40-type locomotive. This involves replacing the existing prime mover with an EPA Tier-II-compliant turbocharged V8 710G3A-T2, with electronic fuel injection. The prime mover is mated to an AR10 alternator for traction power, a CA6 alternator for control power, and a computerized control system.[1] This conversion does not alter the external appearance of the locomotive.

EMD SD22ECO
Type and origin
Power typeDiesel-electric
BuilderElectro-Motive Diesel (EMD)
Specifications
Configuration:
 • AARC-C
Gauge4 ft 8+12 in (1,435 mm)
Prime moverEMD 710G3A, 8–710G3A–T2
CylindersV8
TransmissionDiesel-electric
Performance figures
Power output2,150 hp (1,600 kW)

The Kansas City Southern Railway and Kansas City Southern de México were the only railroads to have rebuilt SD40s into SD22ECOs.[2] [3]

Rebuilders

Railroad Quantity Road Numbers Notes
KCS 2 2600 & 2601[4] Rebuilt from TFM SDP40 1319 & 1320[5]
KCSM 2 2650 & 2651[4] Rebuilt from KCS SD40-2 690 & 692

References

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  1. ^ "New 710ECO Repower Products Provide High Performance for Low and Medium Horsepower Applications" (PDF). www.emdiesels.com. Archived from the original (PDF) on 18 July 2009. Retrieved 27 August 2009.
  2. ^ "KCS Rolls Out EMD 710ECO™ Repower Locomotives". www.emdiesels.com. 22 June 2009. Archived from the original on 17 July 2009. Retrieved 27 August 2009.
  3. ^ "EMD delivers first two 'repowered' locomotives to KCS". Progressive Railroading. 23 June 2009. Archived from the original on 22 December 2017. Retrieved 2024-01-13.
  4. ^ a b "Kansas City Southern locomotive roster". Trains. 3 October 2022. Archived from the original on 29 May 2023. Retrieved 12 January 2024.
  5. ^ "Kansas City Southern Hybrid, Genset & ECO Locomotives". www.trainweb.org. Archived from the original on 13 January 2024. Retrieved 2024-01-13.
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