It is a suitable replacement for the Bachmann Engine that normally comes with the Yard boss set. THIS ENGINE (the first picture and the one on the left) has a bigger tender and more details such as more wheels 2-6-2 unlike the
0-6-0 arrangement with the yard boss set so consider it a detail upgrade. This 2-6-2 performs the same as the 0-6-0 so it can be used as a double team with the engine that comes with a yard boss set to help pull more rolling stock.