The unit is question is a Lughansk (Russia) made 2TE10M locomotive owned by Kazakhstan.
The unit was sent to Erie to allow GE engineers to develop a repowering program that would see additional units repowered by Kazakh Railways.
The units origional full carbody design was modified by replacing the upper structure of the locomotive with a hood design behind the origional cab. The origional cab was retained.
Pic of repowered unit here: http://www.railpictures.net/viewphoto.p ... 581&nseq=2
Pic of unmodified 2TE10M class locomotive can be seen here: http://www.railpictures.net/viewphoto.p ... 162&nseq=2