Providing the best locomotives for every operation.

Knoxville Locomotive Works (KLW) has repowered, refurbished, remanufactured, and/or upgraded over 400 locomotives since its establishment in 1998. Today, KLW offers its own line of green, single-engine, repowered locomotives from 1,000 hp four axle switchers up to 3,200 hp six axle line haul locomotives. In addition to green locomotives, KLW also offers locomotive rebuilding and refurbishment services for traditional locomotives. 


Single-Engine Green Locomotives

A New Approach

KLW is the only manufacturer using a high-speed engine with a low-speed AR10 alternator. Click here to see how our design is different from the rest.


KLW's line of single-engine green locomotives offer low emissions, low fuel consumption, and superior tractive effort performance. Learn more here!

MTU Engines

One of the key components in our locomotives is the MTU engine. Learn more about the four different MTU engines we use right here.


KLW SE-Series Locomotive Models


The KLW SE32C is a 3,200 bhp six-axle locomotive designed for the most demanding operations. Click here to learn more.


The KLW SE24B is a 2,400 bhp four-axle locomotive designed for medium size operations. Click here to learn more.


The KLW SE10B is a 1,000 bhp four-axle locomotive designed for smaller operations. Click the here to learn more.


KLW 2250: The First of its Kind


The KLW 2250 is a unique locomotive that is paving the way for Tier 3 and Tier 4 single-engine locomotives. As the first locomotive to use a high-speed engine with a low-speed alternator, the 2250 has shown operators that green locomotives can use the time-proven components they prefer while offering low emissions and fuel consumption. Since its completion, the 2250 has tested at Class-I, short line, and industrial operations with positive results. Click the links below to learn more about the KLW 2250.

Since its completion the 2250 has been tested at numerous locations, showcasing the future of green locomotives. Learn more here about how the 2250 is raising expectations for locomotive repowers.

Building our first green locomotive was no easy task. Learn more about the build process here.

2250 Photos

Looking for 2250 pictures? This is the place to go! If you have a picture you think deserves to be on this page, send it our way!


Learn More About KLW

Established in 1998, KLW was formed to service G&O locomotives. Today, KLW is its own company and a manufacturer of its own line of green locomotives. Learn more about KLW's history to see how we've become a green locomotive manufacturer.

KLW is an evolving company and is quickly becoming the preferred green locomotive solution. Find out the latest news regarding KLW and see how we are changing the way people think about green locomotives.

Looking to upgrade your aging locomotives? Need to know if we are hiring? Check out our contact us page to find the right person to talk to!