KLW SE24B

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4 ft 8+1⁄2 in (1,435 mm)Prime moverMTU Series 4000 12V R54

Performance figures
Power output	SE20B: 2,250 hp (1,680 kW) SE24B: 2,400 hp (1,790 kW)

Career
Operators	See list

The KLW SE24B or KLW SE20B is a low-emissions diesel switcher locomotive built by Knoxville Locomotive Works (KLWX). It is powered by a single MTU Series 4000 12V R54 (TIER 3) diesel engine which develops a total power output of 2,400 horsepower (1,790 kW). To date, one SE20B locomotive has been produced for KLWX, and it operates on the Gulf and Ohio Railways.^[2] Furthermore, at least 6 SE24B locomotives have also been produced, including for the San Joaquin Valley Railroad.^[3]

Original buyers

SE20B

Railroad	Quantity	Road numbers	Notes
Knoxville Locomotive Works^[4]	1	KLWX 2250	Demonstrator. Rebuilt from ex-NS EMD GP38 2002^[2]
Total	1

SE24B

Railroad	Quantity	Road numbers	Notes
San Joaquin Valley Railroad^[3]	6	2405-2410	Acquired beginning in 2019. Rebuilt from ex-CSX NRE 3GS21B locomotives
Total	+6

References

^ "KLW SE24B: For Yard and Road Switching". 2016. Archived from the original on 21 October 2019. Retrieved 20 December 2016.
^ ^a ^b "Pictures of KLWX 2250". 2016. Retrieved 21 December 2016.
^ ^a ^b "San Joaquin Valley Locomotives". www.thedieselshop.us. Retrieved 25 July 2024.
^ Knoxville Locomotive Works