The McCormick 390233X1 is an original equipment manufacturer (OEM) ring designed for a wide range of International Harvester and McCormick tractors. This essential component ensures proper function within the machinery. Confirmed compatible with models including B250, B275, B414, 354, 374, 384, 434, 444, 454, 474, 475, 574, 674, 276, 238, 248, 258, 268, 278, 484, 584, 684, 784, and 884. It features an inner diameter of 38.1 mm, an outer diameter of 44.45 mm, and a thickness of 12.7 mm.