 Unlike the Co-Co wheel arrangement featured on most locomotives, including its freight hauling variant, WDG-4, this loco has a Bo1-1Bo wheel arrangement meaning that it has two powered and one unpowered axle per bogie.This was done to reduce the weight of the loco to make it suitable for passenger operations and also to reduce maintenance.The use of the locomotive with the long hood forward configuration has been criticised with respect to the driver's visibility as it is affected due to the protruding radiator section at the hood-end.