The Case IH 83963611 Brake Disc is a genuine OEM replacement part designed for optimal braking performance in various Case IH JX series and New Holland TD series agricultural tractors. This durable brake disc features a 170 mm outer diameter, 100 mm inner diameter, and 5.5 mm thickness, ensuring precise fitment and effective stopping power. It is a critical component for maintaining the safety and operational efficiency of your machinery. Replaces OEM part numbers 5179471 and 47124970.