The McCormick 6676561A1 is a genuine differential ring gear designed for various McCormick tractor models, including the C, CX, MC, T-MAX, and X series. This essential drivetrain component features 37 teeth, an outer diameter of 300mm, an inner diameter of 140mm, and a thickness of 50mm. It is secured by 12 mounting holes and weighs 14.2 kg, ensuring robust performance and precise fitment in compatible agricultural machinery. This part also cross-references for Landini and Massey Ferguson applications.