The EMD SD40-2 is a Six-Axle American Locomotive produced by EMD (Electro-Motive Devision, formerly known as Electro-Motive Devision of General Motors).

While produced in the early 1970's, the SD40-2's popularity and reliability saw its use for decades without issue with many railroads still operating their original SD40-2 locomotives or having bought them used from another railroad or from a leasing company.

While not the most powerful diesel in America it is versatile and will serve players well until the Dash-8 (GE C40-8W) appears in 1989 as a heavy freight locomotive.