An SE24B owned by the California Northern Railroad.
(Solid-cold, CC BY 4.0 <https://creativecommons.org/licenses/by/4.0>, via Wikimedia Commons)
KLW SE24B DIESEL-ELECTRIC LOCOMOTIVE
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. Furthermore, at least 6 SE24B locomotives have also been produced, including for the San Joaquin Valley Railroad.
Original buyers
SE20B
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| Knoxville Locomotive Works | 1 | KLWX 2250 | Demonstrator. Rebuilt from ex-NS EMD GP38 2002 |
| Total | 1 |
NZE15B
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| Napa Valley Wine Train | 1 | 1864 | Acquired beginning in 2023. Rebuilt from ex-CSX NRE 3GS21B #1304. |
| Total | +1 |
SE24B
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| San Joaquin Valley Railroad | 6 | 2405-2410 | Acquired beginning in 2019. Rebuilt from ex-CSX NRE 3GS21B and 2GS14B locomotives |
| California Northern Railroad | 3 | 2401-2403 | Acquired beginning in 2019. Rebuilt from ex-CSX NRE 3GS21B locomotives |
| Total | +9 |
Overview
Type and origin
Power type: Diesel-electric
Builder: Knoxville Locomotive Works
Model: SE20B, SE24B
Build date: 2011 – present
Total produced: 1 SE20B demonstrator
6+ SE24Bs
Specifications
Gauge: 4 ft 8+1⁄2 in (1,435 mm)
Prime mover: MTU 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 above)
See Also:
Knoxville Locomotive Works
National Railway Equipment, which originally manufactured the locomotives used to produce the SE24Bs
Diesel Locomotives