Black Appaloosa Sport Horse. From 2015-2017 released as a single model #6031, and in the 8 Piece Set #5900/5901 that included the Warmblood, Arabian, Highland Pony, American Saddlebred, Mustang, Appaloosa Sport Horse, Tennessee Walking Horse, and Andalusian.
In 2017, released as Horse Crazy Collection #97244 from Walmart.
This 8 Piece Set has been referred to as both #5900 and #5901; however there was a 12 horse assortment released in 1995 with the number 5900 and in 1998 there was another 12 horse assortment with the number 5901.
On the 2017 Retired List, but still shown in the 2017/2018 catalog.