The STEYR 130100160902 AT Coupling Disc is a genuine OEM component designed for optimal power transmission in STEYR 9000 and M9000 series agricultural tractors. This essential coupling disc features an outer diameter of 100mm, an inner diameter of 25mm, and a thickness of 10mm, with 16 teeth for precise engagement. It ensures reliable performance and direct fitment for models including 9078, 9086, 9094, 9105, 9115, 9125, 9145, M9078, M9086, M9094, M9105, M9115, M9125, and M9145.