The McCormick 185425M1 is a genuine mainshaft bearing retaining ring designed for secure fitment in various agricultural machinery. This essential component ensures the proper positioning and retention of mainshaft bearings, contributing to the smooth and reliable operation of the transmission system. With an inner diameter of 34.925 mm, an outer diameter of 41.275 mm, and a thickness of 1.575 mm, this robust ring is cross-compatible with a wide range of Massey Ferguson tractor models, including MF 35, 65, 135, 165, 175, 185, 265, 275, 290, 565, 575, 590, 675, 690, 1080, and 1200 series, as well as various Landini, David Brown, and Case IH applications.