EMD® 24B Repower-T4

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The EMD® 24B is an EMD® GP-style locomotive powered by a Cat® 3512C HD engine and Kato alternator. Designed with flexibility in mind, this unit allows customers to choose options without extensive engineering. The EMD® 24B utilizes rebuilt GP-style trucks with rebuilt D78 traction motors and has been constructed with a new crashworthy underframe, cab and fuel tank.


  • Reliable and fuel-efficient Cat® 3512C HD 2000 HP engine
  • New HVC with Zeit SAL V locomotive control system
  • New Atlas Copco rotary screw air compressor
  • New Progress Rail PowerView event recorder with LDVR
  • Offered with a 2-year warranty for new content.


Technical Details


Locomotive Model:
EMD24B Repower
Engine Model:
Cat ® 3512C HD
Brake Horsepower:
No. of Cylinders:
Low Idle Speed RPM:
Full Speed RPM:
Exhaust Aftertreatment Type:
Emissions Certifications:
Tier 4 switch
Mech. bonded
Traction Alternator:
Kato – 1,530 kW
Companion Alternator:
Kato – 250 kW
Air Compressor :
Atlas Copco GAR 37


Cat® 3512C HD Engine

  • Caterpillar has produced over 170,000 of its 3500 series engines since 1980
  • Decrease in fuel consumption of up to 15% from a typical GP38-2
  • Oil change interval can be extended to 368 days from 184 days with proper oil sampling
  • Fully integrated engine and aftertreatment protection by Zeit SAL V control system and the ECM
  • Demonstrated engine system reliability (includes engine and aftertreatment)
  • Supported by Progress Rail and your Local Cat® Dealer.