Some railroads, the
Chicago and North Western Railway in particular, upgraded some of their units to ~ and designated them as C42-8. This designation was modified by the
Union Pacific Railroad to C41-8 after its takeover of C&NW in 1995. Former C&NW units are usually identified by a grab-iron on the front nose just above the Union Pacific shield logo, and/or the "C41-8" designation on the cab side. The final three C&NW C40-8s were built with , and the prior 32 units were similarly modified as well. Although none of these units were ever officially classed as C41-8 by GE, a
safety cab version was built as the
Dash 8-41CW. == Original Owners ==