MTH 30-1166-0 NYO&W (#458) 4-8-2 L3 Mohawk w/Locosound, 2000 Vol. 2
MTH 30-1166-1 NYO&W (#458) 4-8-2 L3 Mohawk w/PS2, 2000 Vol. 2
MTH 30-1393-1 NYO&W (#405) "The Mountaineer" 4-8-2 L3 Mohawk w/PS2
MTH 30-1653-1 NYO&W (#406) "The Mountaineer" 4-8-2 L3 Mohawk w/PS3
MTH had produced two different versions of the 4-8-2 Mountain for the NYO&W. #458 was offered in a standard black paint scheme and represents one of the NYO&W's ten Y-2 class heavy mountain locomotives (#451-#460). They were used on the O&W's numerous steep grades.
MTH also produced "The Mountaineer" (#405). It is one of ten engines (#401-410) of the Y Class, Light Mountains. It is painted in the Mountaineer's distinctive maroon/orange/chrome paint scheme and had paneling added. This engine was as close to "streamlined" as the O&W ever got. #405 was an attempt to bring passenger traffic back to the O&W. It was a short lived success and eventually the engine was stripped of its adornments and returned to a standard black paint scheme. #406, while a prototypical number, was never painted in Mountaineer colors. It is a reissue of the "Mountaineer" due out in April of 2015.
There was also a single engine (#402) of the Y class light mountains that had a trailing booster added. This was later designated class Y-1, and was the only engine modified, suggesting that it wasn't a worthwhile upgrade.