NW2 Diesel Locomotive

Prototype Information

The EMD NW2 was a game-changer in diesel-electric switcher locomotives, built by General Motors’ Electro-Motive Division (EMD) between 1939 and 1949. Designed as a more powerful replacement for the earlier NW1, the NW2 packed a punch with its EMD 567 V6 diesel engine, cranking out 1,000 horsepower. Its B-B wheel arrangement and sturdy welded frame made it perfect for heavy-duty switching in rail yards and industrial settings.

Production kicked off in February 1939, and by the time the last unit rolled out in December 1949, EMD had built 1,145 units, with an additional 7 built for the U.S. Army. The NW2 quickly gained a reputation for reliability and durability, making it a staple in rail operations across the country.

During World War II, the NW2 played a vital role, with the U.S. government placing large orders to keep wartime logistics running smoothly. Some units were even shipped overseas to assist in military operations.

The NW2’s design set a new standard. It featured a single cab with a long, low hood, giving engineers better visibility and control. Upgrades in traction and engine performance made it a top choice for switching tasks, and its robust design ensured it stayed in service for decades.

Many NW2s are still around today, with several preserved in museums and heritage railroads. Their lasting legacy is a testament to the locomotive’s solid engineering and impact on the industry.