The EMD GP11 is a four-axle diesel locomotive rebuilt by the Illinois Central Railroad's Paducah shops.

The Illinois Central Railroad began its GP11 rebuilding program in 1978.

Spotting features are an angled cab, exterior paper air filter, new air intake for the traction motors and four exhaust stacks.

Internally they had Dash 2 solid state electrical equipment.

The majority of Illinois Central's GP11 roster was retired prior to Canadian National's purchase of the railroad, though many of these engines can still be seen in service on other short-line railroads and/or preserved in various locations.