This genuine Massey Ferguson 973786M91 brake disc is an essential component for maintaining optimal braking performance in numerous Massey Ferguson tractors. Engineered to OEM specifications, it features an outer diameter of 178 mm, an inner diameter of 64 mm, and a thickness of 4.5 mm. This high-quality replacement part ensures reliable and safe operation, compatible with various MF 100, 200, 300, 500, 600, 800, 1000, 2000, 3000, 5000, 6000, 7000, and 8000 series models.