The EMD GP16 is a series of rebuilt diesel-electric locomotives, a result of a remanufacturing program initiated by the Seaboard Coast Line Railroad (SCL) in an effort to spare the cost of purchasing new motive power in the late 1970s.

The rebuild work was done at the railroad's Uceta Shops near Tampa, Florida, with the engines, bogies and traction motors rebuilt at Waycross and Jacksonville.

The rebuilt locomotives saw service throughout the system, engaging in a variety of duties from local switching to main-line freight hauling.

Though SCL became part of CSX in the 1980s, the majority of the units remained active until 1992, when the bulk of the roster was retired and sold-off.

Many GP16s remain in active service today on short line railroads around the country, far exceeding their 15-year projected lifespan.