The McCormick 1823574M1 is a genuine OEM oil seal, precisely engineered with an inner diameter of 40mm, an outer diameter of 55mm, and a width of 10mm. This high-quality rotary shaft seal is designed to prevent leaks and ensure optimal performance in various agricultural applications, including a wide range of Massey Ferguson, McCormick, and Landini tractor models. It is a crucial component for maintaining the integrity of hydraulic systems and other rotating assemblies.