The McCormick 3683851M2 is a genuine OEM spacer designed for accurate fitment in a wide range of McCormick, Massey Ferguson, Valtra, and Fendt agricultural and construction machinery. This essential component ensures correct spacing between parts, maintaining optimal function and preventing wear. With an inner diameter of 20.5 mm, an outer diameter of 30 mm, and a length of 10 mm, it is manufactured to original equipment specifications, guaranteeing durability and compatibility for critical applications.