Posted by Gabe Argenta on November 23, 2013 
what does the 2XR mean?
Posted by MRL4403 on December 8, 2017 
MRL's Sd40-2XR's are rebuilt Sd40 and look like a SD40 on the outside but have the -2's internal components that make it a -2, and the XR means it is able to be remotely controlled from a remote control caboose.
Posted by MRL4403 on December 8, 2017 
Also a very cool story coming of that power consist. Must have been a neat sight
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